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Understanding vulnerability.
Three papers on Chile
A thesis submitted to The University of Manchester for the degree of
Doctor of Philosophy (PhD) in the Faculty of Humanities
2018
Amanda Telias Simunovic
Global Development Institute
School of Environment, Education and Development (SEED)
2
3
List of Contents
List of Contents ........................................................................................................................................................3
List of Tables .............................................................................................................................................................7
List of Figures ...........................................................................................................................................................9
Abstract ................................................................................................................................................................... 11
Declaration .............................................................................................................................................................. 13
Copyright statement .............................................................................................................................................. 13
Acknowledgments ................................................................................................................................................. 15
1 Introduction .................................................................................................................................................. 17
1.1 The relevance of vulnerability and its role in poverty reduction ................................................. 20
1.2 Alternative approaches to understanding vulnerability and their low predictive effectiveness
23
1.3 Why is Chile an interesting case study? ............................................................................................ 24
1.4 Data for the empirical research: Chile’s Casen and Panel Casen ................................................. 25
1.5 The three papers and methodology .................................................................................................. 27
1.6 Contributions ....................................................................................................................................... 32
1.7 References ............................................................................................................................................ 35
2 Paper I: Has vulnerability to poverty been increasing in Chile? A distributional analysis of
household income 1990-2013 .............................................................................................................................. 41
2.1 Introduction ......................................................................................................................................... 42
2.2 Why vulnerability matters and how can it be measured? .............................................................. 49
2.2.1 The importance of risk understanding poverty ..................................................................... 49
2.2.2 How to measure vulnerability to poverty ............................................................................... 52
2.3 Vulnerability in practice: The Chilean Social Protection System ................................................. 55
2.4 An empirical approach to vulnerability to poverty ........................................................................ 60
2.5 Data ....................................................................................................................................................... 64
2.6 Methodology ........................................................................................................................................ 67
2.6.1 The Relative Distribution method: a non-parametric framework ...................................... 67
2.6.2 Decomposition by covariates ................................................................................................... 70
2.6.3 Income distribution polarization ............................................................................................. 74
2.7 Empirical results .................................................................................................................................. 76
2.7.1 Relative Density .......................................................................................................................... 78
4
2.7.2 Location and Shape Effects ...................................................................................................... 90
2.7.3 The Polarization Index............................................................................................................... 95
2.7.4 Decomposition by socio-demographic characteristics ......................................................... 98
2.8 Conclusions ......................................................................................................................................... 106
2.9 References ........................................................................................................................................... 109
2.10 Annexes ............................................................................................................................................... 114
2.10.1 La Capacidad Generadora de Ingresos (The income generating capacity) ...................... 114
2.10.2 The covariate-adjusted relative density of total income ..................................................... 115
3 Paper II: Vulnerability to poverty in Chile: the differences between current poverty and the risk of
being in poverty in the future ............................................................................................................................. 118
3.1 Introduction ........................................................................................................................................ 119
3.2 Literature review: Poverty and vulnerability definitions, measurements and differences ...... 124
3.2.1 What does poverty mean? ....................................................................................................... 124
3.2.2 What does vulnerability to poverty mean? ............................................................................ 125
3.3 Theoretical Framework: An empirical approach of vulnerability to poverty ........................... 127
3.3.1 How can we operationalize the vulnerability to poverty concept? ................................... 127
3.3.2 The rise of vulnerability to poverty in Latin American countries ..................................... 129
3.4 Data ...................................................................................................................................................... 131
3.5 Econometric Methodology............................................................................................................... 132
3.5.1 The three-stage methodology for approaching vulnerability to poverty ......................... 133
3.5.2 How can the socio-demographic characteristics of people in poverty, vulnerability, the
middle class and upper middle class be compared? ............................................................................... 139
3.6 Results and discussion ....................................................................................................................... 140
3.6.1 Defining the relation between the probability of falling into poverty and households'
observed income ......................................................................................................................................... 141
3.6.2 Are the socio-demographic characteristics of people living in vulnerability to poverty
different from those of people living with less or with more income? .............................................. 154
3.7 Conclusions ......................................................................................................................................... 163
3.8 References ........................................................................................................................................... 168
3.9 Annexes ............................................................................................................................................... 174
3.9.1 Approaches to and Methodologies for measuring vulnerability to poverty .................... 174
3.9.2 Panel CASEN 1996-2001-2006. Kinds of people interviewed by year ............................ 176
3.9.3 Descriptive statistics of CASEN Panel Database ................................................................ 177
3.9.4 Robustness Checks of logistic and lineal estimations ......................................................... 179
5
4 Paper III: Protecting vulnerable groups in Chile: the contribution of social Assistance to the
poverty exit rate of children and older people ................................................................................................ 185
4.1 Introduction ....................................................................................................................................... 186
4.2 The vulnerable groups approach .................................................................................................... 191
4.3 Are children and older persons overrepresented in poverty? .................................................... 194
4.3.1 Poverty and deprivation among children ............................................................................. 194
4.3.2 Poverty and deprivation among old people ......................................................................... 196
4.4 Poverty rates by age in Chile ........................................................................................................... 199
4.4.1 Income Poverty ........................................................................................................................ 200
4.4.2 Multi-dimensional Poverty...................................................................................................... 203
4.5 The theoretical framework ............................................................................................................... 205
4.5.1 Theories of change behind cash transfers to children and older people ......................... 205
4.5.2 Fiscal mobility ........................................................................................................................... 211
4.6 The data base ..................................................................................................................................... 212
4.7 Methodology ...................................................................................................................................... 213
4.7.1 The three income measures in partial fiscal incidence analysis......................................... 214
4.7.2 Poverty Exit Rate ..................................................................................................................... 219
4.7.3 Poverty and vulnerability lines ............................................................................................... 222
4.8 Results ................................................................................................................................................. 225
4.8.1 Population ................................................................................................................................. 225
4.8.2 Children and Older persons ................................................................................................... 229
4.8.3 Households with children and/or/without older persons ................................................ 231
4.9 Conclusions ........................................................................................................................................ 260
4.10 References .......................................................................................................................................... 263
4.11 Annexes ............................................................................................................................................... 267
4.11.1 The new methodology for measuring poverty in Chile and recent figures of poverty
reduction under both methodologies ...................................................................................................... 267
4.11.2 Dimensions, indicators and cut-offs of the multi-dimensional poverty index used in
Chile 269
4.11.3 Description of the Direct Cash Transfers considered in the analysis: ............................. 270
4.11.4 Rates of taxes ............................................................................................................................ 280
4.11.5 Poverty by age ........................................................................................................................... 283
4.11.6 Tables and Figures ................................................................................................................... 283
6
4.11.7 Multidimensional Poverty Index-Chile. Dimensions, indicators and cutoff points ¡Error!
Marcador no definido.
4.11.8 Fiscal mobility matrices ............................................................................................................ 284
5 Conclusions .................................................................................................................................................. 286
5.1 Findings and contributions from each of the three papers ......................................................... 286
5.2 Policy implications ............................................................................................................................. 294
5.3 Further research ................................................................................................................................. 297
5.4 References ........................................................................................................................................... 299
Word Count: 68,816
7
List of Tables
Table 2- 1 Summary of CASEN statistics by years of application ................................................................ 65
Table 2- 2 Covariates and Equivalent autonomous income in 1990 and 2013 ......................................... 100
Table 3-1 Original members of the survey interviewed both years and three (domestic servants
excluded) ............................................................................................................................................................... 132
Table 3-2 National and International poverty lines expressed in 2005 Chilean Pesos ............................. 134
Table 3-3 Poverty transition matrices 1996-2001 and 2001-2006 ............................................................... 141
Table 3-4 Poverty transition: 2 and 4 categories 1996-2001 and 2001-2006 ............................................. 142
Table 3-5 Logit and Linear estimation 1996-2001 ......................................................................................... 143
Table 3-6 Logit and Linear estimation 2001-2006 ......................................................................................... 144
Table 3-7 Monthly equivalised income thresholds 2005 Chilean Pesos ..................................................... 151
Table 3-8 Distribution of individuals among income groups in 2001 under two probability thresholds
................................................................................................................................................................................ 152
Table 3-9 Comparison between households’ characteristics in poverty, in vulnerability and middle class,
year 2001 ............................................................................................................................................................... 160
Table 3-10 Approaches to and Methodologies for vulnerability ................................................................. 174
Table 3-11 Kinds of people interviewed by year ............................................................................................ 176
Table 3-12 Descriptive statistics: covariates, income and poverty. CASEN Panel Database ................. 177
Table 4-1 Cash transfers considered in the analysis, CASEN 2015 ............................................................ 219
Table 4-2 Groups of benefits ............................................................................................................................ 221
Table 4-3 Poverty and vulnerability thresholds .............................................................................................. 223
Table 4-4 Fiscal mobility matrix, from market income to disposable income, Total percentage
distribution of population .................................................................................................................................. 228
Table 4-5 Fiscal mobility matrix, from market income to disposable income, Row percentage
distribution of population .................................................................................................................................. 228
Table 4-6 Fiscal mobility matrix, from market income to disposable income, Row percentage
distribution of people living in households with children and no older persons ...................................... 239
Table 4-7 Fiscal mobility matrix, from market income to disposable income, Total percentage
distribution of people living in households with children and no older persons ...................................... 239
Table 4-8 Fiscal mobility matrix, from market income to disposable income, Row percentage
distribution of people living in households with older persons and no children ...................................... 240
Table 4-9 Fiscal mobility matrix, from market income to disposable income, Total percentage
distribution of people living in households with older persons and no children ...................................... 240
Table 4-10 Poverty Rate for four poverty lines, composition of individuals in poverty and Exit Rate by
Household Groups. ............................................................................................................................................. 243
Table 4-11 Poverty Exit Rate, Probability of being covered and probability of leaving poverty given
coverage, by households groups ........................................................................................................................ 245
8
Table 4-12 Household type by population groups, all households, Row percentage ............................... 249
Table 4-13 Household type by population groups, exit poverty households ............................................. 250
Table 4-14 Benefits groups, all individuals and individuals in moderate poverty under market income
................................................................................................................................................................................. 254
Table 4-15 Decomposition of the exit rate from poverty, national extreme and moderate poverty lines,
5 and 10 groups of programmes ........................................................................................................................ 256
Table 4-16 Decomposition of the exit rate from poverty, national moderate poverty lines, 5 groups of
programmes, groups of households .................................................................................................................. 259
Table 4-17 Dimensions, indicators and cut-offs of the multi-dimensional poverty index used in Chile
................................................................................................................................................................................. 269
Table 4-18 Household type by population groups, all population, Row percentage ................................ 283
Table 4-19 Household type by population groups, exit poverty individuals .............................................. 284
Table 4-20 Fiscal mobility matrix, from market income to disposable income, Row percentage
distribution of people living in households with children and older persons ............................................ 284
Table 4-21 Fiscal mobility matrix, from market income to disposable income, Total percentage
distribution of people living in households with children and older persons ............................................ 284
Table 4-22 Fiscal mobility matrix, from market income to disposable income, Row percentage
distribution of people living in households with no children and no older persons ................................. 285
Table 4-23 Fiscal mobility matrix, from market income to disposable income, Total percentage
distribution of people living in households with no children and no older persons ................................. 285
9
List of Figures
Figure 2- 1 Kernel Densities 1990 and 2013. Autonomous income distributions ...................................... 77
Figure 2- 2 Kernel Densities 1990, 2000 and 2013. Autonomous income distributions ........................... 78
Figure 2- 3 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Autonomous Income ... 79
Figure 2- 4 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Monetary Income ......... 80
Figure 2- 5 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Total Income ................. 80
Figure 2- 6 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Autonomous Income ... 85
Figure 2- 7 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Monetary Income ......... 85
Figure 2- 8 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Total Income ................. 85
Figure 2- 9 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Autonomous Income ... 86
Figure 2- 10 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Monetary Income ....... 86
Figure 2- 11 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Total Income ............... 86
Figure 2- 12 Relative PDF every year compared with the base year 1990, Equivalent Autonomous
Income ..................................................................................................................................................................... 88
Figure 2- 13 Relative PDF every year compared with the base year 1990, Equivalent Monetary Income
.................................................................................................................................................................................. 89
Figure 2- 14 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Autonomous
Income ..................................................................................................................................................................... 90
Figure 2- 15 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Monetary Income
.................................................................................................................................................................................. 91
Figure 2- 16 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Total Income ... 91
Figure 2- 17 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Autonomous
Income ..................................................................................................................................................................... 93
Figure 2- 18 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Monetary Income
.................................................................................................................................................................................. 93
Figure 2- 19 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Total Income .. 93
Figure 2- 20 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Autonomous
Income ..................................................................................................................................................................... 94
Figure 2- 21 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Monetary Income
.................................................................................................................................................................................. 94
Figure 2- 22 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Total Income .. 94
Figure 2- 23 Relative Polarization Indices, Equivalent Autonomous Income ........................................... 97
Figure 2- 24 Relative Polarization Indices, Equivalent Monetary Income .................................................. 97
Figure 2- 25 Covariates composition effect, Equivalent Autonomous Income ...................................... 103
Figure 2- 26 Covariate-adjusted relative density of income, Equivalent Autonomous Income ............ 104
Figure 2- 27 Covariates composition effect, Equivalent Total Income ..................................................... 115
Figure 2- 28 Covariate-adjusted relative density of income, Equivalent Total Income .......................... 116
Figure 3- 1 Correlation between the estimated probability of falling into poverty and the predicted
equalized income.................................................................................................................................................. 148
Figure 3- 2 1996 Monthly equivalised incomes by probability of falling into poverty ............................. 149
10
Figure 3- 3 2001 Monthly equivalised incomes by probability of falling into poverty.............................. 149
Figure 3- 4 2001 Kernel distribution of monthly equalized incomes 2001................................................. 153
Figure 4-1 Percentage of people in income poverty Chile 2006-2015, by age group ................................ 201
Figure 4-2 14 Latin American Countries. Relation between the poverty rate for population between 0
and 14 years and the poverty rate for the population over 55 years. Relation between the poverty rate
for population between 15 and 24 years and the poverty rate for the population over 55 years. Surveys
around the year 2013 ........................................................................................................................................... 202
Figure 4-3 Percentage of people in income and multi-dimensional poverty in Chile 2015, by age group
................................................................................................................................................................................. 204
Figure 4-4 Partial fiscal incidence analysis incomes ........................................................................................ 214
Figure 4-5 Poverty Headcount by income concepts ...................................................................................... 226
Figure 4-6 Poverty Headcount (Incidence), Poverty Gap (Intensity), Poverty Gap Squared (Severity), by
income concepts ................................................................................................................................................... 227
Figure 4-7 Distribution of age groups among all population, population in poverty under market
income and population in poverty under disposable income, 3 age groups ............................................... 229
Figure 4-8 Moderate Poverty headcount, by income concept and age group ............................................ 231
Figure 4-9 Distribution of individuals by household type, all population, population in poverty under
market income, population in poverty under disposable income ................................................................ 232
Figure 4-10 Distribution of households by household type, all population, population in poverty under
market income, population in poverty under disposable income ................................................................ 233
Figure 4-11 Kernel density of market income, by type of household ......................................................... 234
Figure 4-12 Kernel density of disposable income, by type of household ................................................... 235
Figure 4-13 TIP curve of market income by household type, official moderate poverty line ................. 236
Figure 4-14 TIP curve of net market income by household type, official moderate poverty line .......... 236
Figure 4-15 TIP curve of disposable income by household type, official moderate poverty line........... 236
Figure 4-16 Percentage of population in poverty, by income concept and household composition,
National extreme poverty line ............................................................................................................................ 237
Figure 4-17 Percentage of population in poverty, by income concept and household composition,
National moderate poverty line.......................................................................................................................... 238
Figure 4-18 Household size, all households, by household type .................................................................. 248
Figure 4-19 Household size, by household types, all households, households in poverty and exit poverty
households ............................................................................................................................................................. 250
Figure 4-20 Poverty gap national moderate poverty line, by type of household and income ................. 252
Figure 4-21 Poverty gap national extreme poverty line, by type of household and income .................... 252
Figure 4-22 Percentage of people in income poverty by New Methodology (2006-2013) and Traditional
Methodology (1990-2013) ................................................................................................................................... 268
Figure 4-23 Distribution of age groups among all population, population in poverty under market
income and population in poverty under disposable income, 6 age groups ............................................... 283
11
Abstract
Poverty eradication has been one of the most important, if not the most important,
development goals of recent decades. It still represents one of the major challenges of our
time. The first objective of the U.N.’s Sustainable Development Goals agreed in 2015 states:
"End poverty in all its forms everywhere" (United Nations 2015). To meet the main objective
of eliminating poverty by 2030, it has been recognized that protection must go not only to
those in poverty but also to those who are in danger of falling into poverty in the future.
Although vulnerability to poverty can be broadly defined as the likelihood of someone falling
into poverty in the future, there is no agreement on how best to measure it or determine its
impact on well-being. The main research question addressed in the thesis is: How can
vulnerability to poverty be operationalized and measured? It explores this question empirically
in three papers covering: (i) what are the shifts in vulnerability to poverty along the distribution
of income over time; (ii) what do the measurements of vulnerability to poverty tell us about
the sociodemographic characteristics of people in situations of vulnerability to poverty
compared with those living in poverty and the middle class; (iii) what is the relationship
between poverty, vulnerability and age and what is the role of social assistance in addressing
these. The three papers take Chile as a case study to understand and measure vulnerability
from three different approaches. Chile is a high-income country with a successful poverty
reduction strategy but still facing the challenge of eradicating it. Most of its social programs are
designed to reach the 60% most vulnerable sector of the population. The first paper employs a
relative understanding of vulnerability. It examines population shifts along the distribution of
income from deciles in poverty in an earlier period to deciles of vulnerability in a later period.
Methods to analyse relative distribution proposed by Handcock & Morris (1999) are used to
perform this analysis. The findings emphasize that poverty reduction can be accompanied by
vulnerability reduction. The second paper measures vulnerability to poverty using the approach
proposed by López-Calva & Ortiz-Juarez (2014). This paper estimates the probability of falling
into poverty and uses this to establish a vulnerability income threshold. The findings underline
the differences between the group of people living in vulnerability, those living in poverty and
people who belong to middle class. This paper contributes to the recognition of the group of
people in vulnerability as a different group to those in poverty and the middle class providing
12
the recommendation of different social programmes for these groups. Poverty reduction
strategies should consider these differences. The third paper moves the analysis onto the
vulnerable groups. It focuses on children and older people as vulnerable groups in need of
state protection. A partial fiscal analysis is carried out following the guidelines of the
Commitment to Equity Institute to compare the situation of these groups before and after
direct taxes and cash transfers. It shows that current cash transfers have an age bias, being
more effective in reducing poverty among the elderly than among children. The findings
confirm the view that age bias in welfare institutions creates generational inequity in the
allocation of public benefits. In the context of the general lack of agreement regarding what
vulnerability to poverty is and how it can be measured, this thesis thus tries out three different
ways to conceptualize and measure it.
13
Declaration
No portion of the work referred to in the thesis has been submitted in support of an
application for another degree or qualification of this or any other university or other
institute of learning.
Copyright statement
i. The author of this thesis (including any appendices and/or schedules to this thesis)
owns certain copyright or related rights in it (the “Copyright”) and he has given
The University of Manchester certain rights to use such Copyright, including for
administrative purposes.
ii. Copies of this thesis, either in full or in extracts and whether in hard or electronic
copy, may be made only in accordance with the Copyright, Designs and Patents
Act 1988 (as amended) and regulations issued under it or, where appropriate, in
accordance with licensing agreements which the University has from time to time.
This page must form part of any such copies made.
iii. The ownership of certain Copyright, patents, designs, trademarks and other
intellectual property (the “Intellectual Property”) and any reproductions of
copyright works in the thesis, for example graphs and tables (“Reproductions”),
which may be described in this thesis, may not be owned by the author and may
be owned by third parties. Such Intellectual Property and Reproductions cannot
and must not be made available for use without the prior written permission of the
owner(s) of the relevant Intellectual Property and/or Reproductions.
iv. Further information on the conditions under which disclosure, publication and
commercialisation of this thesis, the Copyright and any Intellectual Property
and/or Reproductions described in it may take place is available in the University
IP Policy (http://documents.manchester.ac.uk/DocuInfo. aspx?DocID=24420),
in any relevant Thesis restriction declarations deposited in the University Library,
The University Library’s regulations
(http://www.manchester.ac.uk/library/aboutus/regulations) and in the
University’s policy on Presentation of Theses.
14
To Luciana and José Manuel
15
Acknowledgments
This thesis is more than a piece of work. It is the conclusion of a journey that I started
seven years ago through different countries. Throughout this journey, I have met many
important people for this thesis and for me. I would like to thank all of them for being part, in
different ways, of this adventure. It was not difficult to remember them all. They are part of
this.
The Washington DC friends: Elena Costas-Pérez, Fernando Vargas, Sebastián
Kraljevich, Javiera Díaz-Valdés, Gonzalo Araya, Nelson, Nicolás Lillo, Paulina Sepúlveda,
Natalia Ortiz, Felipe Avilés. Catalina, Silvia, Fernando, Manolo. José Ignacio Sembler, Andrea
and Santana.
The Lancastrian family: Carolina Pérez, Macarena Rioseco, Daniela Silva, Derly
Sánchez, Oscar Maldonado, Felipe, Gabriel, Rodrigo. Soledad Dávalos, Julio Prado, Antonella-
Samantha-Joaquín Prado (Los pradalos). Carla, Victor, Julieta, Gastón, Leah, Phil, John,
Virginie, James, Sten, Kristof, Ruth, Johnny.
The Londoners: Paula Graetzer, Marité Chavira, Robinson Rojas, Cristian Olmos,
Macarena León, Max Valdés, Ian Mackinnon, Rocío, Antonia Asenjo, Tito Coddou.
The Mancunians: The completo italiano (Daniele Malerba, Felipe González, Gabriela
Zapata), Nayaret Inaipil. Lucía Mantelli, Maria Montt, Joaquín Mantelli. Fabiola, Flo, Liu,
Victoria, Víctor, Javier Castillo, Valentina. Laura Rodríguez, Vidhya Unnikrishnan, Aarti
Krishnan, Eyob Gebremariam, Elena, Denisse.
The supervisors, advisors, and experts: Armando Barrientos, Katsushi Imai, Eduardo
Ortiz-Juarez, Sandra Martinez-Aguilar, Marisa Bucheli, Mark Handcock, Francesco Schettino.
Osvaldo Larrañaga, Rodrigo Herrera, Alina Oyarzún, César Cancho. Abhishek Chakravarty,
Jennifer Golan, Solava Ibrahim, Kunal Sen, David Hulme.
The closest friends: Claudia Petric, Daniela Lagos, Daniela Aceituno, Genoveva Tapia,
Gabriela Bertrand, Alejandra Arellano, Rodrigo Martel, Francisca Palomas, Javiera Palomas,
16
Francisca Keller. Mariana Huepe, Alejandra Núñez, Belén Valdés, Catalina Pantoja, Catalina
Valdés, Carla Parra, Pía Mora. Edmundo Hermosilla, Pedro Asenjo, Sebastián Guinguis, Pablo
Egaña, Alvaro Ruíz, Lucas Orellana, Daniela Guasch. Paula Castro, Alejandra Sanhueza,
Francisco Pinto.
The unconditional family: Benjamín, Dezanka and Mauricio. Ana María, Mario, Pablo,
Cristina and Ángeles. Irene, Ximena, Rosa, Salvador, Moisés, Olivia, Gaspar and Isabel. Vesna,
Milenko, Ivo, Marisol, Lauri, Virna, Nono.
The most important: Luciana and José Manuel. The life with you has purpose, inspiration and
love. Let start together a new journey! This time, back home.
17
Amartya Sen (Asia Week, October 1999), “….the challenge of development includes not only the
elimination of persistent and endemic deprivation, but also the removal of vulnerability to sudden and severe
destitution”
1 Introduction
Poverty eradication is one of the biggest challenges of our time. Although poverty has been
decreasing during the last two decades, even so, 767 million people were living on less than
$1.90 dollars a day in 2013 (2011 PPP) (World Bank, 2016). Extreme1 and moderate2 poverty
have fallen dramatically since 19903 but the challenge of eradicating it again still appears as the
first objective in the global development agenda for the forthcoming years. The first goal of
the Sustainable Development Goals (SDG4) established in 2015 is to end poverty in all its forms
everywhere, which is composed of the following three more detailed goals:
1.1 By 2030, eradicate extreme poverty for all people everywhere, currently measured as
people living on less than $1.25 a day.
1.2 By 2030, reduce at least by half the proportion of men, women and children of all ages
living in poverty in all its dimensions according to national definitions.
1.3 Implement nationally appropriate social protection systems and measures for all,
including floors, and by 2030 achieve substantial coverage of the poor and the vulnerable.
1 Extreme poverty is defined by the World Bank as living on less than US $1.90 a day in 2011 PPP. 2 Moderate poverty is defined by the World Bank as living on less than US $3.10 a day in 2011 PPP. 3 The proportion of the world population living in extreme poverty fell from 34.82% in 1990 to 10.67% in 2013. People living in moderate poverty also decreased over this period. The proportion of people living on less than $3.10 dollars a day dropped from 66% in 1990 to 35% in 2012 (World Bank indicators) (World Bank, 2016). http://povertydata.worldbank.org/poverty/home/ 4 http://www.un.org/sustainabledevelopment/sustainable-development-goals/
18
After acknowledging that poverty must be eradicated from a global perspective in point 1.1
and reduced according to national agreements in point 1.2, the importance of providing social
protection systems to the poor and the vulnerable is recognized. The question that emerges is
how to define the poor and the vulnerable that social protection systems must protect
nationally? The answer is easier regarding the poor than the vulnerable. There is a long
tradition in economics of literature regarding the definition and measurement of poverty.
However, research in vulnerability is more recent in the field increasing since the beginning of
this century. In general terms, vulnerability means the probability of being exposed to a variety
of risks, such as, natural disasters, crime, violence, poverty, illness, among others (World Bank,
2001). Hence, the study of vulnerability has been concentrated on the risk of negative
outcomes in the future (Hoddinott & Quisumbing, 2003b). Although different approaches
have been developed in pursuing a definition and measurement of vulnerability not much
consensus has been reached, in particular over its measurement.
The understanding of vulnerability is the main focus of this thesis. The main research
question of the thesis is: How can vulnerability to poverty be operationalized and measured?
This broad main research question is broken down into three subsequent questions that
can be directly addressed through empirical research. Each of the following questions is the
object of one of the three papers that comprise this thesis. :
Is the reduction of poverty accompanied by an increase in vulnerability to poverty?
What are the determinants of vulnerability to poverty? And what distinguishes people
living in vulnerability from people in poverty and the middle-class?
Is vulnerability related with age? And if so, what is the role played by cash transfers in this
relation?
The aim of this thesis is to trial three ways of understanding vulnerability. Therefore each
of the three research papers of this thesis provides a different way of understanding
vulnerability. The first and the second paper put attention on vulnerability in one dimension:
19
income. The first paper employs a relative understanding of vulnerability. In this, vulnerability
is understood as belonging inherently to certain deciles of income distribution. This
understanding of vulnerability is in line with empirical definitions of vulnerability. The second
paper characterizes vulnerability to poverty. Usually vulnerability in the income dimension is
measured through the reduction in income below the poverty line (Calvo & Dercon, 2013).
This paper estimates vulnerability to poverty defined as the current probability of being in
poverty in the future. This paper characterizes the group of people in vulnerability to poverty
and compares them with the socio-demographic characteristics of people in poverty and
middle class people. Although the third paper still focuses on poverty, it broadens the analysis
to vulnerable groups. It focuses on children and older people as particularly vulnerable groups
in need of state protection. It analyses the effectiveness of monetary transfers in moving these
two vulnerable groups out of poverty. The three papers aim to contribute to the understanding
of vulnerability to poverty, with a specific focus on how a Social Protection System can tackle
a household’s vulnerability to poverty. As vulnerability and its measurement are the main
concerns of the three papers, some subsections of the three papers are very close. In particular,
the literature review of the first two papers describes the same approaches and measurements
available in the understanding of vulnerability. More detailed summaries of each of the three
papers are presented in Section 1.5.
In the following sections are presented the background and contextual factors of this
research. The next sections are organized as follows. In Section 1.1 the importance of
understanding vulnerability is briefly presented. The purpose of this section is to provide the
motivation for the increasing literature on vulnerability during the last two decades and the
justification for the research questions of this thesis. This section contextualizes the
importance of vulnerability reduction for poverty eradication goals; increasing the well-being
of a population, among other benefits. In Section 1.2 alternative approaches and
methodologies for defining and measuring vulnerability are presented. The focus is put on
vulnerability to poverty which is the main concern of this research. In addition, a discussion of
the low effectiveness that the available vulnerability to poverty measures have is presented in
this section, showing the importance of new approaches to understanding vulnerability. In
Section 1.3 the context of Chile is presented. The reasons that make Chile an interesting case
study are presented in this section. The data from Chile used in this research is presented in
20
Section 1.4. The cross-section survey used in paper I and III and the panel data used in paper
II are described. The three papers and the methods used to conduct the empirical analysis in
each paper are presented in Section 1.5. Finally, in Section 1.6 the contributions of this thesis
are presented.
1.1 The relevance of vulnerability and its role in poverty
reduction
A Social Protection System is defined as a policy response5 to conditions of poverty and
vulnerability considered unacceptable within a society (Barrientos et al., 2005; Norton et al.,
2000). Under this definition, any Social Protection System should consider not only
individual’s or household’s current level of deprivation but also their vulnerability to being
deprived. This has been one of the main drivers of the growing literature on vulnerability
during the last two decades. The identification of the vulnerable groups that need protection
from the State is at the core of research on vulnerability. The possibility of identifying the
determinants of vulnerability has great importance in the design and implementation of social
policies.
Putting the focus on vulnerability to poverty, a Social Protection System should be able to
reduce the probability of households being in poverty. The importance of vulnerability to
poverty to the design and implementation of social policies has motivated the growing recent
literature in the topic. The possibility to design appropriate forward-looking anti-poverty
interventions is a motivation to find better definitions and measurements for vulnerability to
poverty (Chaudhuri, 2003). In this context, the reduction of vulnerability is an ex-ante
mechanism for reducing poverty.
5 This policy response can be through social insurance, social assistance and labour market policies (Barrientos, 2013a; Barrientos & Hulme, 2008). Social insurance is a protection against uncertain risk (unemployment or sickness) or life-course contingencies (maternity or old-age) that individuals or households can face (Barrientos & Hulme, 2008). Social assistance represents all public actions, from the government or otherwise, that transfer resources to deprived groups or other groups with entitlements with a moral justification. A Social Protection System helps to meet the aims of labour market regulation to consolidate decent working conditions (Cecchini & Martínez, 2011).
21
Beyond the importance of vulnerability to poverty as a forward-looking strategy for
reducing poverty, vulnerability has negative consequences today. It has been shown that the
uncertainty associated with it has direct adverse effects on current levels of wellbeing (Calvo &
Dercon, 2007; Chaudhuri, 2003). Vulnerability is about the uncertainty over what the future
will bring which generates suffering and anxiety among people. This fact has also motivated
the literature on vulnerability putting the focus on the reduction of vulnerability to improve the
well-being of the population.
The growing evidences of into and out of poverty transitions stresses the importance of
vulnerability to poverty. This research understands poverty as a state in which individuals can
find themselves at a particular moment in time. Poverty is not a permanent characteristic of
individuals or households (Barrientos 2013). This research refers to people or households in
poverty. Here, households or individuals are not intrinsically poor. In fact, many people are
vulnerable to being in poverty because poverty is transient. They can be in poverty for a short
period of time because of changes or shocks that they confront. Other groups of people stay
in poverty for longer periods. In that case, poverty is chronic or persistent. The duration of
poverty is one of the dimensions important in the context of vulnerability to poverty. Poverty
transitions configure the vulnerability to poverty notion. Moreover, it has been argued that
vulnerability to poverty estimations can contribute to targeted social programmes
distinguishing between transient and chronic poverty (Bérgolo et al., 2010).
In addition, poverty measures are not able to capture these transitions. Poverty measures
based on static data drawn from a single cross-section survey do not capture the movements in
and out of poverty that people experience, and fail to identify temporarily poor or non-poor
individuals (Baulch & Hoddinott, 2000). Poverty measures are a static measure of welfare that
can lead to errors of inclusion -people who are in poverty temporarily because of a short-term
misfortune- and exclusion -who are out of poverty because of favourable short-term
circumstances. In addition, the poverty headcount 6 is discontinuous at the poverty line
meaning that incomes below the poverty line classify people as poor and incomes above the
poverty threshold identify people as not-poor. From a social welfare perspective, this measure
6 This is part of the family of poverty measures developed by Foster-Greer-Thorbecke (FGT) (1984). The poverty headcount rate shows the share of the population in poverty.
22
captures the welfare loss of being poor when a person is too poor to acquire the poverty-level
basket of goods (Bourguignon & Fields, 1997). For the purposes of the poverty headcount
rate, incomes matter if people are below the poverty line, but they do no matter above it. The
concept of vulnerability cares about the well-being of people above the poverty line but facing
the risk of being in poverty in the future. This is another fact that has motivated its study.
The fact that all of us are exposed to suffering shocks has also increased the interest in
vulnerability. People are exposed to suffer aggregate7 and idiosyncratic8 shocks (Chaudhuri et
al., 2002; Dercon, 2006; Hoddinott & Quisumbing, 2008) that make them vulnerable to being
in poverty in the future. There are households out of poverty but that do not have enough
resources to confront these shocks. Furthermore, this is a global concern. This is a shared
concern for rich and poor countries because as countries improve their living standards,
attention tends to shift away from the poorest population exclusively.
The impossibility to smooth out consumption that many households confront makes the
consequences of shocks even greater. A shock that reduces a household’s income can generate
long lasting consequences if the household does not have access to insurance or insufficient
assets to smooth out consumption. Some children in the house can drop out of school to start
working or they can reduce their nutrient intake affecting their current well-being and also
their future productive capacity. The household can sell productive assets that will also reduce
their income in the future. All these mechanisms for coping with shocks can lead to
irreversible consequences in the future.
All the arguments presented motivate the study of vulnerability. Different approaches and
measures have been developed to improve the understanding and measurement of
vulnerability. A brief summary of the most important of them follows.
7 Among the aggregate shocks are natural disasters (earthquakes, floods, etc.), bad economic conditions (price increases, unemployment increases, recessions, etc.), or socio-political instability (violence, war, etc.) (Hoddinott & Quisumbing, 2008). 8 Idiosyncratic shocks are the unemployment, illness, or death of one member of the family, among others (Hoddinott & Quisumbing, 2008).
23
1.2 Alternative approaches to understanding vulnerability and
their low predictive effectiveness
Although attention to vulnerability to poverty has increased during the last decade there is
not an agreed definition and measurement of it. The stochastic nature of the future adds a
layer of complexity to the ex-ante estimation of vulnerability (Dutta et al., 2011).
Competing conceptualisations of poverty and vulnerability emphasise different
explanations for vulnerability to poverty and different methods of measuring it. Authors such
as Hoddinott and Quisumbing (2003a, 2003b, 2008), Ligon and Schechter (2003), Gaiha and
Imai (2008), Calvo and Dercon (2013) and Klasen and Povel (2013) have analyzed and
compare the most influential approaches on vulnerability to poverty. As many of these authors
establish, the conceptualization of vulnerability at individual or household level can be grouped
in the following categories: vulnerability as uninsured exposure to risk (VER)9; vulnerability as
low expected utility (VEU)10; vulnerability as expected poverty (VEP)11; and vulnerable groups.
Vulnerability to poverty measures can be assessed through their capacity to predict future
episodes of poverty. This has been done to different vulnerability to poverty methods (Jha et
al. (2010); Bérgolo et al. (2010; 2012); Celidoni (2011); Feeny & McDonald (2016); Ligon &
Schechter (2004); Zhang & Wan (2009)). The majority of them have been concentrated in the
most popular measures of vulnerability such as Suryahadi et al. (2000); Chaudhuri (2003);
Foster, Greer and Thorbecke (1984; 2010); Calvo and Dercon (2005); Dutta et al. (2011).
However, these evaluations have been more concentrated on ranking these measurements
Celidoni (2011) than proving support for the use of one particular measure. One of the more
9 Among the approaches that see vulnerability as exposure to risks (VER) are ‘Vulnerability as exposure to
risks of low income households’ (Glewwe and Hall (1998); Dercon and Krishnan (2000); Amin et al. (2003); Cochrane (1991); Ravallion and Chaudhuri (1997); Townsend (1994); Jalan and Ravallion (1999)); ‘Vulnerability as extended poverty’ (Cafiero & Vakis, 2006); ‘Vulnerability as subjective perception of downward risk’ (Povel, 2010); ‘Dutta-Foster-Mishra Proposal’ (Dutta et al., 2011).
10 This approach was rigorously formulated by Ligon and Schechter (2003) 11 Ravallion (1988); Jorgensen and Holzmann (1999); Christiaensen and Boisvert (2000); Suryahadi et al. (2000); Chaudhuri (2003); Chaudhuri and Christiaensen (2002); Kamanou and Morduch (2002); Christiaensen and Subbarao (2005); Ligon and Schechter (2003); Calvo and Dercon (2007). There are several empirical applications, among them, Hoddinott and Quisumbing (2003a), Suryahadi and Sumarto (2003), Kamanou and Morduch (2002), Christiaensen and Subbarao (2005), Gaiha and Imai (2008), and Gunther and Harttgen (2009).
24
conclusive pieces of research, made by Bergolo et al. (2010) using Chaudhuri et al. (2002)
methodology12, indicates that vulnerability measures predict better aggregate poverty trends
than at the micro level. The authors conclude that vulnerability estimates through this
methodology should be complemented with additional information on aggregate trends and
shocks in order to target policy intervention Bergolo et al. (2010). The low predictive capacity
of currently available vulnerability measures and the complex application of axiomatic
approaches proposed justify the use of alternative approaches.
1.3 Why is Chile an interesting case study?
The three papers of this thesis use Chile as a case study. There are several reasons to select
this South American country to conduct empirical research. First, the concept of the
vulnerable has been incorporated by its Social Protection System since the year 2000. The main
distinction of the adoption of a vulnerability approach is the coverage of the Social Protection
System. Since the year 2000, the government of Chile began to include in their Social
Protection System people living in poverty, and also middle and low-income households in
unstable economic situations at risk of falling into poverty.
Second, Chile is one of the countries that have followed the global tendency of poverty
reduction during the last decades. Considering a per capita poverty line of around 4.5 dollars a
day, the poverty rate decreased from 38.6% in 1990 to 7.8% in 2013, and extreme poverty
from 13% to 2.5% during the same period. 13 In addition, poverty reduction has been
accompanied by an improvement in other social indicators. Chile has the highest UNDP
Human Development Index (HDI) in Latin America14, and it has one of the lowest poverty
rates in the continent measured by ECLAC15. Today, Chile is a high-income country with one
12 The methodology is applied to 18 Latin American countries and a validation exercise was carried out to assess their capacity to predict poverty in two countries with Panel data available: Chile and Argentina. 13 Under a new methodology (higher poverty lines) that started to be applied in the year 2013, poverty levels decreased from 29.1% in 2006 to 14.4% in 2013, and the reduction in extreme poverty was from 12.6% to 4.5% between these years. 14 In 2013 the Human Development Index for Chile was 0.822 points. 15 Chile is behind Argentina and Uruguay. Source: ECLAC
25
of the highest incomes per capita 16 in Latin America 17 . In this context of significant
improvements in well-being, economic and social vulnerabilities gain relevance.
Third, there is strong evidence of poverty transitions confirming that vulnerability to
poverty is significant even among groups that have escaped poverty. Neilson et al. (2008)
show, using 1996 and 2001 panel data, that while poverty levels have fallen significantly in
Chile, a large percentage of the population is threatened by poverty at some time. The national
moderate poverty rate fell from 22% to 18% between 1996 and 2001. However, more than
34% of the population was in poverty at least once during this time, and 46% of people in
poverty in 2001 were not in poverty in 1996 (Neilson et al., 2005). The group of people that
fell into poverty came, in the majority, from the third up to the sixth decile of the initial
income distribution. They found large income volatility among the first seven deciles of the
population, with the implication that an important share of this population is vulnerable to
falling into poverty. This supports selecting the 60th percentile of the income distribution as the
threshold of vulnerability to poverty.
Fourth, children and older persons are not equally represented in poverty. This evidence
configures Chile as a country where children are over-represented among people in poverty
while older persons are under-represented among this group, and where a higher number of
children in the household is related with higher levels of vulnerability to poverty and a higher
number of older persons means lower levels of vulnerability to poverty. These disparities
between these two age groups raise questions regarding the different levels of protection that
they are receiving, and in particular, the role of Social Assistance programmes over these
poverty rate disparities by age.
1.4 Data for the empirical research: Chile’s Casen and Panel
Casen
16 The GDP per capita PPP for the year 2012 corresponds to US$ 22,363. Source: World Bank, World Development Indicators. 17 Chile in conjunction with Argentina and Mexico.
26
Two main data bases from Chile are used in this thesis. One is the National
Socioeconomic Characterization Survey (CASEN) from 1990 up to 2015 and the other one is
the Panel version of CASEN. A brief description of each data base follows.
The CASEN is applied between November and December every two or three years by the
Ministry of Social Development and it is representative at the level of country, regions, and
rural and urban areas. The samples have on average 59 thousand households in each survey.
The publicly available CASEN have been applied in the years, 1990, 1992, 1994, 1996, 1998,
2000, 2003, 2006, 2009, 2011, 2013 and 2015. Paper I of this thesis makes use of all the
CASEN between 1990 and 2013. The last available CASEN 2015 was not included in the
analysis because it was not adjusted by national accounts as had been done in all previous
versions. This innovation had been in place since CASEN 2013. However, CASEN 2013 was
still comparable with previous CASEN because the data was released with and without
adjustment that year. Since CASEN 2015, all the innovations made in CASEN 2013 have been
in place, among them the new methodology for poverty measurement. Paper III of this thesis
makes use of CASEN 2015 in order to estimate a vulnerability income threshold taking into
account all the changes in the methodology.
Paper II, instead, makes use of the first18 Panel version of the CASEN. In order to support
analysis of the same households throughout the years, the Ministry of Social Development has
conducted a Panel CASEN since 1996. The first Panel CASEN was carried out by the Ministry
of Social Development in conjunction with the Social Observatory at Universidad Alberto
Hurtado (OSUAH) and the Foundation of Poverty Reduction (FSP). A subsample of 5,209
households -comprising 20,942 individuals- was selected from four regions of the country (III,
VI, VIII, and the Metropolitan Region) in CASEN 1996 who were re-interviewed in 2001 and
2006. These regions represent 60 per cent of the national population and of the GDP. The
main advantage of the Panel CASEN is that it provides information from the same households
over a long span of time -10 years.
18 A second Panel from CASEN was collected in the years 2006, 2007, 2008 and 2009. The base line was taken from the cross section CASEN 2006. As the attrition rate of this Panel was very high, being not very used to research.
27
1.5 The three papers and methodology
As stated above, the first research paper explores vulnerability from a relative perspective.
It examines population shifts along the distribution of income from poverty deciles in an
earlier period to deciles of vulnerability in a later period. This is a starting point to understand
vulnerability as inherent in certain deciles of the distribution of income, in particular, the first
six deciles of it. The literature shows that a group of people in developing countries who
moved out of poverty are “bunching up” just above the poverty line and remain vulnerable to
falling into poverty after any shock (Chen & Ravallion, 2004). This research aims to analyse the
movements between poverty and vulnerability in conjunction. The relative distribution method
is applied to analyze the changes along the distribution of income in Chile between 1990 and
2013. As is detailed later, Chile represents the case study and the National Socioeconomic
Characterization Survey (CASEN) between 1990 and 2013 is the survey used to conduct the
empirical analysis. The findings emphasize that poverty reduction can be accompanied by
vulnerability reduction. Rising incomes in real terms between 1990 and 2013 have led to a
decrease in both poverty and vulnerability. This study finds that the main driver of the
reduction of poverty and vulnerability was the increase in the income that households generate
by themselves –their autonomous income19. However, monetary transfers also contribute to
the reduction of poverty and vulnerability. People in vulnerability dropped after monetary
transfers from the government were in place showing the effectiveness of Social Assistance
over a larger population than people in poverty. These results also confirm the empirical 6th
decile as the threshold to define vulnerability. The proportion of people in 2013 who remain in
the first 6 deciles of the income distribution of 1990 fell. In opposition, the proportion of
those in 2013 that were in the top four deciles of the income distribution in 1990 increased.
However, the results indicate that the distribution of incomes shows an increase in polarization
in the first decile. These results suggest that while the great majority of individuals experienced
growth in their autonomous income during this period, the poorest fraction of them has been
left behind. The contribution of monetary transfers to increasing income in the lower deciles is
19 Autonomous income is the name given to the income generated by household members. This income does not consider monetary transfers or imputed rent. Autonomous income is the best income measure to reflect the standard of living of households because it represents their ability to generate income for themselves.
28
not enough to equalize the increase of autonomous income in all the rest of the deciles.
Regarding the variables that explain this reduction in poverty and vulnerability, it is found that
the educational level of heads of household is the most important. Except for education, the
impact of the other variables is small. Higher educational levels reduce the proportion of
people in deciles of vulnerability, but they do not explain all the changes in the distribution of
income nor its polarization. Overall, this study provides evidence that the reduction of poverty
can be accompanied by a reduction in vulnerability where, as in the case of Chile, it has been
led by the increase in the autonomous income that households generate.
The focus of the second paper is the estimation and characterization of vulnerability to
poverty. Although, overall, vulnerability to poverty can be defined as the probability that
individuals or households will find themselves in poverty in the future (Barrientos, 2013), there
is no agreement on how to measure it or determine its impact on well-being. This study
addresses the gaps in understanding and measuring vulnerability to poverty. Specifically, this
study estimates the probability of falling into poverty identifying the vulnerability income
threshold associated with these probabilities. This empirical threshold of 10% of probability is
used to distinguish those in vulnerability and those in the middle class. After the establishment
of the groups in poverty, vulnerability, middle class and upper middle class, they are compared
in their socio-demographic characteristics. The findings show that people in vulnerability to
poverty are distinct in many respects to people in poverty and those who belong to the middle
class. It can be said that people living in vulnerability are in between those living in poverty and
the middle-class group. The socio-demographic characteristics and the propensity to suffer
shocks of people in vulnerability are getting closer to middle-class characteristics and getting
further away from poverty determinants. People in vulnerability have more resources for
avoiding deprivation than those in poverty but not enough to be protected against the risk of
being in poverty in the future. The substantial and statistically significant differences among
the group in vulnerability and the other two income groups stress the importance of making a
distinction among these groups. The results also show that this inverse relationship between
higher income and lower probability of falling into poverty remains pronounced with incomes
decreasing sharply up to a 20% probability of falling into poverty. Furthermore, the rate of
decline of incomes is sharper up to around the 10% degree of probability of falling into
poverty. From that point onwards, although incomes still decrease while the probability of
29
falling into poverty increases, they do so at a slower pace. This makes 10% and 20% of
probability of falling into poverty natural thresholds for identifying the group of people in
vulnerability to poverty. In methodological terms, this study finds that the estimations are very
sensitive to the poverty line considered and the probability threshold used. In this context, this
study uses the new poverty line implemented in Chile since 2013 and the 10% probability
threshold which is in connection with the 60% of the population that the State of Chile uses to
identify the vulnerable.
The third paper moves the analysis to two vulnerable groups: children and older people.
The over-representation of these two age groups in income poverty and vulnerability make
them the focus of many Social Assistance programmes (Barrientos, 2013). The consequences
of living in poverty over their well-being are observed in the short and long term. As a
consequence, children and older persons are commonly recognized as vulnerable groups that
need protection from the State. In addition, one of the main findings of Paper II of this thesis
is that the age composition of the household is an important determinant of vulnerability to
poverty. Households with more children face a higher probability of being in poverty in the
future while having more elderly persons in the households is related with a lower probability
of facing episodes of poverty in the forthcoming years. However, these two age groups do not
necessarily receive the same level of protection from the State. Lynch (2006) distinguishes
between welfare institutions biased towards older groups and pensions –called occupational-
based- and those giving more attention to families, children and to groups with weak ties to
the labour market –named citizenship-based. The age-related bias of welfare institutions
concerning protection from poverty and destitution creates a generational inequity in the
allocation of public benefits. The main objective of this paper is to examine the generational
equity of cash transfers in Chile. In particular, to compare the effectiveness on poverty
reduction of cash transfers targeted to households with children and households with older
persons. A partial fiscal analysis is carried out following the guidelines of the Commitment to
Equity Institute (CEQ20) to compare the situation of these groups before and after direct taxes
and cash transfers. This study finds that the effectiveness of cash transfers to reduce poverty is
higher among people living in households with older persons than in households with children.
20 The Commitment to Equity (CEQ) Institute at Tulane University. http://www.commitmentoequity.org/
30
The main reason behind the higher effectiveness of cash transfers to exiting poverty in
households with older persons is the higher amount of cash transfers that they receive. They
are highly covered by cash transfers that are more effective in exiting poverty. In addition, this
study finds a complementarity of benefits increasing the exit poverty rate. This evidence
supports the argument that the per capita amount of benefit is an important element in
increasing the exit poverty rate and not only the coverage of cash transfers among people in
poverty. Overall, this study provides further evidence that the effectiveness of cash transfers in
reducing poverty depends on the kind and amount of the cash transfer and those in the case of
Chile are strictly in connection with the age composition of the household. The findings
confirm the view that age bias in welfare institutions creates generational inequity in the
allocation of public benefits.
The three papers use different approaches and methodologies to define and measure
vulnerability. All of them are presented in detail in each paper. This section briefly summarizes
each of them.
The Relative Distribution method introduced by Handcock and Morris (1998; 1999) is
applied in Paper I. The Relative Distribution method is a non-parametric framework for
analyzing data taking into account all distributional changes. This framework uses a
combination of graphical tools for exploratory data analysis with statistical summaries,
decomposition, and inference. The Relative Distribution Method helps us observe the way in
which the deciles of income distribution have moved relative to the past from a non-
parametric perspective. It explores whether the movements across income distribution have
benefited the vulnerable deciles in the same way as the rest of the deciles. Moreover, incomes
pre- and post-social assistance are considered in order to evaluate the contribution of monetary
transfers from the government to reducing vulnerability to poverty. In addition, the relative
distribution is decomposed into its covariates in order to observe the contribution of different
socio-economic characteristics, such as gender, age and education of the head of the
household or geographical location, to the income distribution changes. Finally, the Relative
Distribution Method also allows the polarization of income distribution to be measured
through the Median Relative Polarization index (MRP).
31
The estimation strategy and the econometric model used in Paper II follow the
vulnerability to poverty approach proposed by López-Calva and Ortiz-Juarez’s (2014) which
can be carried out in three steps. First, the probability of falling into poverty in the next period
is estimated from socio-demographic characteristics in the current period and some changes
along the period, where the individual is the unit of analysis. Taking advantage of the Panel
data, these estimations are made. Second, the estimation of income is done using the same
covariates used in the first step. Third, the probability and income estimation are combined,
obtaining a predicted income associated with a particular probability of falling into poverty.
From this three-stage method, the definition of the probability of falling into poverty as a
vulnerability threshold has an income threshold associated. This is a clear advantage of this
method because the income vulnerability threshold can be compared with the poverty line;
they are in the same language. These thresholds are used to identify four groups: those in
poverty, vulnerability, the middle and upper middle classes. The first three groups are
compared in terms of their socio-demographic characteristics and propensity of suffer shocks
between the initial and final years.
Paper III carries out a partial fiscal incidence analysis through the comparison of incomes
before and after direct taxes and direct cash transfers. It is partial because it does not consider
indirect taxes and transfers that are usually considered in a full fiscal incidence analysis. The
partial fiscal incidence analysis was carried out following the framework proposed by the
Commitment to Equity (CEQ) (Lustig & Higgins, 2013, 2016). Therefore, the focus of this
paper is on fiscal interventions that affect the total income of the household: direct taxes and
cash transfers. In order to identify the effects of fiscal intervention, the following three
different income measures are compared: market income (pre-fiscal income before direct taxes
and direct cash transfers), net market income (after direct taxes and before direct cash
transfers) and disposable income (after direct taxes and direct cash transfers). The market and
disposable incomes per equivalent person are used to estimate the poverty exit rate. The
poverty exit rate is defined as the proportion of people 0in poverty under market income that
is not in poverty under disposable income. Four poverty rates are considered: the extreme
international, extreme national, international moderate and national moderate. In addition, the
poverty exit rate is decomposed between the probability of being covered -receiving the cash
transfer- and the probability of leaving poverty given that the individual is covered. This
32
decomposition allows us to separate the effect of the programme’s coverage and the
importance of the amount of the cash transfer for being taken out of poverty, given that the
individual is covered. The poverty exit rate is compared between children, adults and older
persons. In addition, in order to identify if households with children and households with
older people are equally protected, households are classified in four groups: households with
children, households with older persons, households with children and older persons, and
households without children and older persons.
1.6 Contributions
The research in this thesis makes several contributions to the existing literature related to
vulnerability to poverty. These contributions are presented in the following paragraphs and
presented in more detail in each paper of the thesis and in the conclusions.
The overall contribution of this thesis is to uncover the meaning of vulnerability to
poverty. In the context of the general lack of agreement regarding what vulnerability is and
how it can be measured, this thesis tries out three different ways to conceptualize and measure
vulnerability focusing on vulnerability to poverty. In doing so, this thesis adds to the literature
in several ways.
The first contribution is the analysis of the relation between poverty and vulnerability to
poverty. Poverty reduction means that people move above the poverty line. Their new position
in the income distribution is unknown. This research empirically analyzes the transition from
poverty to out of poverty identifying if people move to vulnerability to poverty or out of it.
This establishes that poverty can be reduced at the same time as vulnerability to poverty. An
additional contribution is the use of the relative distribution method developed by Handcock
and Morris (1998; 1999) for the study of vulnerability.
Second, this research contributes to the incorporation of the polarization concept in
vulnerability to poverty analysis. Understanding income polarization as the occurrence of a few
large groups with different income levels that feel identified with their group and alienated
from each other (Esteban & Ray, 1994), vulnerability can be explored from this approach.
33
People in vulnerability to poverty can be understood as a group alienated from other income
groups and with a high degree of identification among themselves.
Third, the relation between the probability of falling into poverty and income is
established. Using the vulnerability to poverty approach proposed by López-Calva & Ortiz
Juarez (2014), this research contributes to the estimation of a vulnerability threshold for a
high-income country like Chile. The income threshold definition allows the operationalization
of the concept of vulnerability to poverty. This is crucial for vulnerability to poverty reduction
and for the goal of poverty eradication. In methodological terms, this study finds that the
estimations are very sensitive to the poverty line considered and the probability threshold used.
In this context, this study uses the new poverty line implemented in Chile since 2013 and the
10% probability threshold which is in connection with the 60% of the population that the
State of Chile uses to identify the vulnerable. The estimation taking into consideration the
contextual factors of a particular country is a contribution to the literature.
Fourth, this research contributes to the characterization of the group of people in
vulnerability to poverty. Through the use of panel data for Chile, the socio-demographic
characteristics between people in vulnerability to poverty and people in poverty and the
middle-class are compared. The comparison identifies a group defined as being in vulnerability
to poverty with socio-demographic characteristics that differ from people in poverty and the
middle-class. This is decisive for the design of social protection programmes to reduce
vulnerability to poverty and eradicate poverty.
Fifth, a direct connection between vulnerability to poverty and household composition is
found. A higher proportion of children appears to be related with a higher level of
vulnerability to poverty and a higher proportion of older persons with lower levels of
vulnerability. The literature on vulnerability describes the shocks that people confront as a
central explanation of vulnerability to poverty. Shocks are unpredictable making the estimation
of vulnerability to poverty inaccurate. The identification of household characteristics as
determinants of the probability of being in poverty in the future is a contribution of this
research.
Sixth, this is the first study to compare the effectiveness of cash transfers depending on the
age composition of the household in Chile. The importance of anti-poverty programmes’
34
contribution to exit poverty depending on the proportion of children and/or older person is
presented. This thesis contributes by bringing two topics into the vulnerability literature. First,
age comparison brings the issue of the protection-promotion trade-off that anti-poverty
programmes confront. Second, it raises the issue of welfare institutions biased towards older
groups while children are less protected against poverty and destitution.
Finally, this research also contributes to the literature on the effectiveness of cash transfers
by using a partial fiscal incidence analysis. This kind of analysis, although leaving behavioural
responses apart, allows vulnerable groups to be compared before and after direct taxes and
cash transfers. The priority groups can be easily identified through fiscal incidence analysis.
35
1.7 References
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41
2 Paper I: Has vulnerability to poverty been increasing
in Chile? A distributional analysis of household income
1990-2013
Abstract
While it is well known that a prospective approach to poverty is necessary to prevent
and eradicate poverty, there is no agreement on how to do so. There is no single definition of
vulnerability to poverty or a consensual mechanism for measuring and quantifying its impact
on well-being. This paper attempts to contribute to narrowing the knowledge gap in the
understanding of vulnerability. This study employs a relative understanding of vulnerability. It
examines population shifts along the distribution of income from poverty deciles in an earlier
period to deciles of vulnerability in a later period. Methods to analyze relative distribution
proposed by Handcock & Morris (1999) are used to perform this analysis. The case study is of
Chile and its’ National Socio-economic Characterization Survey (CASEN) between 1990 and
2013 provides the data used to conduct this analysis. It is found that the vulnerable population
decreased between 1990 and 2013, mainly because of the increase in household income. The
findings emphasize that poverty reduction can be accompanied by vulnerability reduction.
People in vulnerability decreased after monetary transfers from the government showing the
effectiveness of the Social Assistance provided over a larger population than people in poverty.
However, the income distribution shows an increase in polarization, revealing that the poorest
fraction of the population was left behind.
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2.1 Introduction
Poverty and vulnerability have been recognized as close but different concepts. Although
both of them are well-being measures, poverty is an ex-post and vulnerability is an ex-ante
measure of well-being. In general terms, poverty can be understood as significant deficit in
well-being experienced by individuals, households or communities considered unacceptable in
a given society (Barrientos, 2013). Vulnerability to poverty can be broadly defined as the
probability that individuals or households will find themselves in poverty in the future
(Barrientos, 2013). The main distinction between poverty and vulnerability to poverty is the
uncertainty about the future as a consequence of the risks that households and individuals face
(Dercon, 2006).
The motivation to study vulnerability to poverty as something different from being in
poverty came from several theoretical developments and new empirical evidence. First,
poverty has the characteristic of being dynamic. This dynamism is not captured by poverty
measures. The use of static welfare measures can lead to errors of inclusion -people who are in
poverty temporarily because of short-term misfortune- and exclusion -people out of poverty
because of favourable short-term circumstances. Poverty measures based on static data drawn
from a single cross-section survey do not capture the movements in and out of poverty that
people experience, and therefore fail to identify temporarily poor or non-poor individuals
(Baulch & Hoddinott, 2000). Second, people are exposed to aggregate and idiosyncratic shocks
(Dercon, 2006) that make them vulnerable to being in poverty in the future. There are
households out of poverty that do not have enough resources to confront these shocks. Third,
definitions and measures of vulnerability to poverty allow the design of appropriate forward-
looking anti-poverty interventions Chaudhuri (2003). The reduction of vulnerability is an ex-
ante mechanism to reduce poverty. Fourth, interest in vulnerability to poverty is global. This is
a shared concern for both rich and poor countries because as countries improve their living
standards, attention tends to shift away from the poorest population exclusively. Fifth, it has
been shown that uncertainty has direct adverse effects on current levels of well-being (Calvo &
Dercon, 2007; Chaudhuri 2003). Uncertainty about what the future will bring generates
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suffering and anxiety among people. The poverty headcount21 is discontinuous at the poverty
line meaning that incomes below the poverty line classify people as poor and incomes above
the poverty threshold identify people as not-poor. From a social welfare perspective, this
measure captures the welfare loss of being poor when a person is too poor to acquire the
poverty-level basket of goods (Bourguignon & Fields, 1997). For the purposes of the poverty
headcount rate, incomes matter if people are below the poverty line but they do not matter
above it. The concept of vulnerability takes into consideration the well-being of people above
the poverty line but facing the risk of being in poverty in the future. Sixth, the impossibility to
smooth out consumption that many households confront makes the consequences of shocks
even greater. A shock that reduces a household’s income can generate long lasting
consequences if the households have no access to insurance or insufficient assets to smooth
out consumption. As a consequence of this, it has been said that policies directed at reducing
vulnerability are instrumental in reducing poverty (Chaudhuri et al., 2002).
Overall, its importance for the well-being of populations and its strategic role in Social
Protection programmes has motivated the literature on vulnerability to poverty. The study of
vulnerability to poverty increased over the last two decades. The World Development Report
2000/2001 (World Bank, 2001) spotlighted the concept of vulnerability and since then many
studies have been trying to contribute to its understanding and measurement. Among the
available approaches to understanding vulnerability today are vulnerability as expected poverty
(VEP), vulnerability as expected utility (VEU) and vulnerability as exposure to risks (VER)
(Ligon & Schechter, 2003). Although attention to vulnerability to poverty has increased since
2000 there is still no agreed definition or measurement of it. The stochastic nature of the
future adds a layer of complexity to the ex-ante estimation of vulnerability (Dutta et al., 2011).
The main objective of this paper is to provide further insights into vulnerability. It argues
that the welfare loss associated with poverty can be significantly larger than that measured by
cross-section data, and that a better measure of welfare loss can be obtained by measuring
both poverty and vulnerability to poverty. A reduction of poverty achieved by shifting large
numbers of people to just above the poverty line might not reduce the welfare loss from
21 This is part of the family of poverty measures developed by Foster-Greer-Thorbecke (FGT) (1984). The poverty headcount rate shows the proportion of the population in poverty.
44
poverty proportionally. It has been shown that poverty reduction has been accompanied by an
increase in vulnerability. Chen and Ravallion (2004) show evidence of poverty reduction in
developing countries from 1981 to 2001. The authors indicate that the percentage of the
population living below $1 per day was almost halved over the 20 year period falling from 40%
to 21%. The poverty measures for $2 per day also decreased over this period but at a lower
rate. Poverty rated by this higher standard dropped from 67% in 1981 to 53% in 2001.
However, the group of people living between $1 and $2 rose abruptly over these two decades,
from about 1 billion to 1.6 billion. This evidence of clear “bunching up” of people in poverty
just above the $1 line suggests that a considerable number of people in developing countries
remain vulnerable to falling into poverty after any shock.
This study uses an empirical approach as a first approximation to identify vulnerability to
poverty. Instead of focusing on a particular method to measure vulnerability to poverty –that is
done in the second paper of this thesis- this paper focuses on an empirical conceptualization
of being vulnerable to poverty. In general terms, we could identify people who are vulnerable
to poverty as those who populate the bottom six deciles of the per capita income distribution.
This is a definition used by the State of Chile, the case study in this analysis, to target its Social
Protection System. Social Protection is therefore targeted to the 40 or to the 60 percent most
vulnerable people of the population depending on the specific social programme. These
empirical thresholds are also used by academics, governments and international organizations.
For instance, the World Bank and the Palma Ratio focus on the bottom 40 percent of income
distribution to provide an empirical counterpart to the concepts of shared prosperity and
inequality measures respectively. In both cases, the bottom 40 percent represents a group of
people who are not benefiting from income growth as the other deciles of the income
distribution are. Some other governments have also started to target Social Protection
programmes to people in vulnerability to poverty. For instance, Brazil expanded the coverage
of its Bolsa Família Programme (Programa Bolsa Família, PBF) in 2009 because of the
programme’s inclusion and exclusion errors due to the income volatility of the poorest
families.
45
The main objective of this research is to explore the changes in the vulnerability deciles
through time. The analysis in this study examines whether people who have moved out of
poverty remain vulnerable to poverty or have managed to move out of vulnerability altogether.
The main research questions of this paper are the following:
Does poverty reduction mean an increase in vulnerability to poverty?
What is the effect of public monetary transfers on vulnerability to poverty?
What factors underpin a reduction of vulnerability?
In order to explore the relation between poverty and vulnerability reduction the Relative
Distribution Method introduced by Handcock and Morris (1998; 1999) is applied. The
objective is to analyze how the population has moved across the income distribution over the
1990-2013 period, putting attention on the poverty and vulnerability deciles. This method
allows the identification of the proportion of people in the vulnerability deciles of 1990 who
remained in vulnerability in 2013. Additionally, incomes pre- and post-social assistance are
considered in order to evaluate the contribution of monetary transfers from the government to
reducing vulnerability to poverty. The Relative Distribution Method helps us observe the way
in which the deciles of income distribution have moved relative to the past from a non-
parametric perspective. It explores if the movements across income distribution have benefited
the vulnerable deciles in the same way as the rest of the deciles. In addition, the relative
distribution is decomposed into its covariates in order to observe the contribution of different
socio-economic characteristics, such as gender, age and education of the head of the
household or geographical location, over the income distribution changes.
For this purpose, the Chilean National Socio-economic Characterization Survey (CASEN)
available for the years between 1990 and 2013 is used. This survey is collected by the Ministry
of Social Development of Chile and representative of the country, its regions, and rural and
urban strata.
There are several reasons making Chile an interesting case for studying vulnerability to
poverty. First, as it was mentioned above, the incorporation of the vulnerable group in its
Social Protection System. The main distinction of its adoption of a vulnerability approach is
46
the coverage of the Social Protection System. Since the year 2000, the government of Chile
began to include in their Social Protection System not only people living in poverty, but also
middle and low-income households with an unstable economic situation at risk of falling into
poverty22. Second, Chile is one of the countries that have followed the global tendency of
poverty reduction during the last decades. Considering a per capita poverty line of around 4.5
dollars a day, the poverty rate decreased from 38.6 per cent in 1990 to 7.8 per cent in 2013,
and extreme poverty from 13 to 2.5 per cent during the same period.23 In addition, poverty
reduction has been accompanied by an improvement in other social indicators. Chile has the
highest UNDP Human Development Index (HDI) in Latin America24, and it has one of the
lowest poverty rates in the continent measured by ECLAC25. Today, Chile is a high-income
country with one of the highest incomes per capita26 in Latin America27. In this context of
significant improvements in well-being, it is important to analyze the changes in economic and
social vulnerabilities.
Third, there is strong evidence showing that people move in and out of poverty
throughout time. Studies confirm that vulnerability to poverty is significant even among
groups that have escaped poverty. Using 1996 and 2001 panel data, Neilson et al. (2008) show,
that while poverty levels have fallen significantly in Chile, a large percentage of the population
is threatened by poverty at some time mainly those who belong to the bottom six deciles of
the initial income distribution. This supports the selecting of the 60th percentile of the income
distribution as the threshold of vulnerability to poverty.
The main findings of this study show that rising incomes in real terms between 1990 and
2013 led to a decrease in both poverty and vulnerability. Poverty reduction was accompanied
by a reduction in vulnerability in Chile between 1990 and 2013. The proportion of people in
22 Social Protection is targeted to the 40 or to the 60 percent most vulnerable people of the population depending on the specific social programme through a verification of means. 23 Under a new methodology (Higher Poverty Lines) that started to be applied in the year 2013, poverty levels decreased from 29.1% in 2006 to 14.4% in 2013, and the reduction in extreme poverty was from 12.6% to 4.5% between these years. 24 In 2013 the Human Development Index for Chile was 0.822 points. 25 Chile is behind Argentina and Uruguay. Source: ECLAC 26 The GDP per capita PPP for the year 2012 corresponds to US$ 22,363. Source: World Bank, World Development Indicators. 27 Chile in conjunction with Argentina and Mexico.
47
the year 2013 with a per capita income in the lowest 6th deciles of the income distribution in
1990 decreased considerably. A smaller percentage of people in 2013 remain in the
vulnerability deciles of 1990. Only 30% of the population in 2013 remained in the lowest 6th
decile of 1990 and 15% of them were in first 4th decile of 1990. The number of people in 2013
that remained in the same degree of vulnerability as in 1990 more than halved.
The results also show that the 6th decile is a natural inflection point between the two years
under analysis. The proportion of people in 2013 who remained in the first 6 deciles of the
income distribution of 1900 fell. In opposition, the proportion of those in 2013 that were in
the top four deciles of the income distribution in 1990 increased. More than twice as many
recent incomes fell into the higher deciles than the original cohort. This provides evidence to
support the empirical approach that considers the 60th percentile as the threshold of
vulnerability to poverty.
This study finds that the main driver of the reduction of poverty and vulnerability was the
increase in the income that households generate by themselves –their autonomous income28.
However, monetary transfers also contribute to the reduction of poverty and vulnerability.
Their effect was even more important between the years 2000 and 2013 than it was throughout
the first decade under analysis. That means that the reduction of the population living in 2013
with incomes in 2000’s vulnerability deciles was more important than the decrease of the
population in vulnerability in 2000 compared with the 1990 vulnerability deciles. This reflects
the expansion of the Social Protection System since 2000 onwards.
The polarization of incomes29 between 1990 and 2013 is an additional finding of this
research. The lower tail of the distribution –mainly the first decile- contributes more
importantly to the polarization of incomes than the upper tail. This suggests that while the
great majority of individuals experienced growth in their autonomous income during this
period, the poorest fraction of them was already falling behind. Although monetary transfers
28 Autonomous income is the name given to the income generated by household members. This income does not consider monetary transfers or imputed rent. Autonomous income is the best income to reflect the standard of living of households because it represents their ability to generate income for themselves. 29 From the polarization approach of Esteban and Ray (1994), the polarization of a population occurs when people belonging to a group that share an attribute - such as income, religion, race - feel identification with the members of their group and alienation from other groups with different attributes. In the context of income distribution, polarization occurs when there are few large groups with different incomes that feel identified with their group and alienated from each other.
48
reduce the proportion of people in vulnerability, and especially in the first 2 deciles of the 1990
income distribution, they are not enough to reduce considerably the polarization of income
distribution. Their main contribution is in reducing polarization in the lower tail, and this effect
increased throughout the years. However, as it was observed before, the contribution of state
financial support to increasing income in the lower deciles is not enough to equalize the
increase of autonomous income in all the rest of the deciles.
This study finds that an increase in educational level of heads of household is behind the
average higher income in 2013 than in 1990. In addition, a small but positive effect on income
is generated by a reduction in the proportion of children in the household. In the opposite
direction, there are the following variables: greater proportion of women heads of household
and young people. These variables increased the proportion of people in the lowest decile and
reduced the proportion in the top decile. Except for education, the impact of the other
variables is small. The higher educational levels reduce the proportion of people in deciles of
vulnerability, but they do not explain all the changes in the distribution of income nor its
polarization.
Overall, this study provides evidence that the reduction of poverty can be accompanied by
a reduction in vulnerability where, as in the case of Chile, it has been led by the increase in the
autonomous income that households generate.
The contributions of this research are centered in a better understanding of the
vulnerability to poverty concept. From an empirical point of view, this research presents
evidence that poverty reduction can be accompanied by vulnerability to poverty reduction in a
middle-income country like Chile. An additional contribution is the application of the relative
distribution method to the study of vulnerability. This non-parametric framework is used to
analyze the changes in vulnerability to poverty from a relative and empirical point of view.
Finally, this research contributes to the incorporation of the concept of polarization in
vulnerability to poverty analysis. People in vulnerability to poverty can be explored as a group
alienated from other income groups and with a high degree of identification among
themselves.
The paper is organized as follows. Section 2.2 presents the literature review regarding the
importance of understanding vulnerability to poverty and the different approaches to
49
measuring it, providing a context to this understanding of vulnerability. In section 2.3
vulnerability to poverty in the context of the Chilean Social Protection System is presented. In
Section 2.4, the theoretical framework of the analysis is presented. The following sections
explain the data base used (Section 2.5) and the methodology conducted (Section 2.6). Section
2.7 presents the main results of the paper. The final section draws out the main conclusions of
the research.
2.2 Why vulnerability matters and how can it be measured?
This section focuses on two areas, foundational to the research which follows. First, it
examines the literature that makes the case for using vulnerability to poverty as a welfare
measure. Second, it examines the range of methods available for measuring vulnerability to
poverty. As interest in vulnerability to poverty has increased, many different approaches and
measures have been developed and proposed. However, there is no consensus on either its
definition or its measure.
2.2.1 The importance of risk understanding poverty
Poverty and vulnerability have been recognized as close but different concepts.
Traditionally, poverty has been seen as multiple deficits in the basic goods and services
required for human life available to individuals or households. There has been a tendency to
measure poverty in terms of individuals’ economic resources – measured with an income or
expenditure metric – to cover these needs and thereby avoid poverty. In general terms,
vulnerability to poverty refers to the threat of experiencing poverty at some point in the future.
Viewed from this perspective, the main distinction between poverty and vulnerability to
poverty lies in the uncertainty about the future that households and individual face. Chambers
(1989) distinguished between external factors –shocks, risks and stress- and internal factors –
defencelessness -in defining the degree of uncertainty faced by households. His study placed
social risks and resilience, as the capacity to cope with risks without damaging loss, as the key
50
dimensions of vulnerability. More recently, these shocks have been categorized as aggregate
shocks or idiosyncratic shocks (Chaudhuri et al., 2002; Dercon, 2006; Hoddinott &
Quisumbing, 2008). The former are those that affect several people at the same time while the
latter only affect one individual or household. Among aggregate shocks are natural disasters
(earthquakes, floods, etc.), bad economic conditions (price increases, unemployment increases,
recessions, etc.), or socio-political instability (violence, war, etc.) (Hoddinott & Quisumbing,
2008), whereas idiosyncratic shocks refer to unemployment, illness, or the death of one
member of the family, among others.
The motivation to study vulnerability to poverty as something different from poverty came
from several theoretical and empirical contributions.
A key factor encouraging the study of vulnerability to poverty has been the growing
evidence supporting a dynamic understanding of poverty. There is strong evidence showing
that many individuals and households move in and out of poverty at different times meaning
that poverty is a not a static state that remains stable throughout time. Aggregate or
idiosyncratic shocks as described above can reduce the income or expenditure of households
moving them into poverty. For instance, a household can face employment shocks, health
shocks, or agro-climatic shocks that can reduce their income generation and consequently
affect their poverty status. The evidence of poverty dynamics indicates there is a group of
people who are not in poverty but lack enough resources to avoid the possibility of being in
poverty in the future.
The population groups vulnerable to poverty are an important target for any anti-poverty
programme. This is another important reason for the growing interest in the study of
vulnerability to poverty. The identification of which sectors of the population face a high risk
of being in poverty in the future is a priority in the design of Social Assistance programmes. In
order to identify these groups of people, a clear definition of vulnerability to poverty is needed
and a way to measure it. As Chaudhuri (2003) clearly states, in order to define appropriate
forward-looking anti-poverty interventions, “it is necessary to go beyond a cataloging of who is
currently poor, how poor they are, and why they are poor to an assessment of households’
vulnerability to poverty–who is likely to be poor, how likely are they to be poor, how poor are
they likely to be, and why are they likely to be poor” (Chaudhuri, 2003, p. 3). The determinants
51
of being in poverty at a particular time can differ from the determinants of being in poverty in
the future. A forward-looking policy to reduce poverty must consider these possible
differences.
In addition, the distinction between the ex-post measures of poverty and the ex-ante
measures of vulnerability lead to a distinction between ex-post measures to reduce poverty and
ex-ante measures to prevent poverty. The reduction of vulnerability is an ex-ante mechanism
to reduce poverty.
The interest in vulnerability to poverty is now global. At the same time that poverty rates
have been decreasing around the world during the last few years (World Bank, 2016b)30 ,
interest in the risk of falling into poverty again that these people face has grown. This is a
shared concern for both rich and poor countries because as countries improve their living
standards, attention tends to shift away from the poorest population exclusively. This provides
an additional motivation for the understanding of vulnerability to poverty and the need for
social protection of the poorest people in richer economies.
Another motivation for the understanding of vulnerability to poverty came from the
possibility of an intrinsic negative relationship between uncertainty and well-being. Risk and
uncertainty might lead to adverse behavioural responses leading to lower levels of well-being.
They might also have direct intrinsic effects on well-being. It has been shown that uncertainty
has direct adverse effects on current levels of well-being (Chaudhuri, 2003; Calvo & Dercon,
2007). Uncertainty about what the future will bring generates suffering and anxiety among
people. As it was established in the World Development Report 2000/2001, risk and
uncertainty are a crucial source of worry to people living in poverty (World Bank, 2001).
In addition, the impossibility to smooth out consumption that many households confront
makes the consequences of shocks even greater. A shock that reduces a household’s income
can generate long lasting consequences if the household does not have access to insurance or
insufficient assets to smooth out consumption. Some children in the house can drop out from
school to start working or they can reduce their nutrient intake affecting their current well-
being and also their future productive capacity. The household can sell productive assets that
30 The World Development Indicators, http://povertydata.worldbank.org/poverty/home/
52
will also reduce their income in the future. All these mechanisms for coping with shocks can
lead to irreversible consequences in the future. As a consequence of this, it has been said that
policies directed at reducing vulnerability are instrumental in reducing poverty. This is the case
in the majority of households in low and middle-income countries. The market failure of
uninsured economic risks taken is another reason that motivates the study of populations that
are vulnerable to poverty.
2.2.2 How to measure vulnerability to poverty
After acknowledging that vulnerability to poverty matters and understanding it is important
to poverty reduction strategies, the key question arises as to how to properly define and
measure it. Several proposals are available. Competing conceptualisations of poverty and
vulnerability emphasise different explanations for vulnerability to poverty and different
methods of measuring it.
Some authors argue that vulnerability to poverty is explained by, and can be measured
through, exposure to risk. Risk-related vulnerability puts the downside risks that people face at
the centre of the analysis. The literature regarding this understanding of vulnerability explores
the “exposure to risk and uncertainty, the response to these, the welfare consequences, and the
implications for policy” (Dercon, 2006).
Among the approaches that see vulnerability as exposure to risks (VER) are ‘Vulnerability
as exposure to risks of low income households’ (Glewwe and Hall (1998); Dercon and
Krishnan (2000); Amin et al. (2003); Cochrane (1991); Ravallion and Chaudhuri (1997);
Townsend (1994); Jalan and Ravallion (1999)); ‘Vulnerability as extended poverty’ (Cafiero &
Vakis, 2006); ‘Vulnerability as subjective perception of downward risk’ (Povel, 2010); ‘Dutta-
Foster-Mishra Proposal’ (Dutta et al., 2011).
Usually, vulnerability as exposure to risks uses an ex-post, backward-looking perspective,
which concentrates on observed past outcomes rather than on an aggregate measure of
vulnerability (Tesliuc & Lindert, 2002; Cruces, 2005; Cruces & Wodon, 2007). For instance,
one method of doing it is to focus on counting the poverty spells observed for a household
53
(Baulch & Hoddinott, 2000). Through the use of panel data, it counts the number of times that
a particular household has been in poverty. Households that have always been in poverty are
persistently poor, but households that have only experienced poverty some of the time can be
defined as vulnerable to being in poverty.
Other authors propose an understanding of vulnerability as expected poverty (Ravallion
(1988); Jorgensen and Holzmann (1999); Christiaensen and Boisvert (2000); Suryahadi et al.
(2000); Chaudhuri (2003); Chaudhuri and Christiaensen (2002); Kamanou and Morduch
(2002); Christiaensen and Subbarao (2005); Ligon and Schechter (2003); Calvo and Dercon
(2007). Among these approaches, the most popular focuses on measuring vulnerability to
poverty understood as the probability that a household will find itself in poverty in the future
(Barrientos, 2013). The ‘vulnerability as expected poverty’ (VEP) approach tries to predict ex-
ante the likelihood that a household will experience poverty in the future. It tries to estimate
the probability that welfare may drop below the minimum standard of living in the future
(Chaudhuri et al., 2002). The methodology for this approach was initially provided by
Chaudhuri et al. (2002), who applied it to Indonesian household data. In this approach, the
measure of vulnerability to poverty is defined by the probability that a household or an
individual, whether currently in poverty or not, will be in poverty in the future. In this
approach, the usual metric to measure vulnerability to poverty is the income or consumption
space.
This methodology is based on the assumption that cross-section variation in household
consumption could be a proxy for cross-time variation. As a consequence of this, it does not
need panel data to predict the likelihood of future poverty. It only requires transversal data to
calculate vulnerability measures. This is the main reason for its popularity. However, this
assumption is not accepted in the literature and therefore, this methodology is not widely
adopted.
An intrinsic difficulty with the approach of vulnerability as expected poverty, as a forward-
looking approach to poverty, is the fact that it tries to predict ex-ante the probability of being
in poverty in the future, which can only be done stochastically. Another source of criticism of
this methodology comes from the fact that it makes several assumptions to predict future
probabilities: households' probability distributions of consumption are log-normal, these
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distributions are time invariant, and these distributions are equal for all households. All these
assumptions are questionable. In addition, it establishes a counter-intuitive relationship
between a lower probability of being in poverty in the future and more variance (risk) in
consumption. Under this perspective, a social policy that increases variance in consumption
could reduce the likelihood of being in poverty in the future. The transition of this
understanding of vulnerability to social policies focused on vulnerability reduction is not clear.
A third approach proposed to understand vulnerability to poverty has been called
‘vulnerability as expected utility’ (VEU). This approach was rigorously formulated by Ligon
and Schechter (2003) who propose a utilitarian-based methodology to estimate household
vulnerability. They propose that vulnerability can be measured through the difference between
two utilities: the utility resulting from a threshold income and an individual’s expected utility
resulting from incomes in a vulnerable situation. The higher a person’s vulnerability the higher
the difference between these two utility values. An individual is not in vulnerability when his
income is above the threshold. The advantage of this approach is that it includes the
individual’s attitude towards risks through the utility function. However, it assumes that all
individuals have the same attitudes towards risks. While appealing in terms of incorporating
risk in the analysis of vulnerability, it has some drawbacks. The approach needs a specification
of a utility functional form and a value for the risk aversion parameter. The VEU has been less
used as an approach than the VEP because vulnerability is presented in terms of utility making
the interpretation of results less straightforward and less applicable to real contexts.
A fourth perspective for understanding vulnerability to poverty is through identifying
groups of vulnerable people. They can be the elderly, orphans, widows, the landless or low-
paid workers. They are described as vulnerable to poverty because they are in a fragile
condition, in more general ‘weakness’ or ‘defencelessness’ (Dercon, 2006). They can face more
risks as well, such as those described in the vulnerability as exposure to risks approach, but
they are in a disadvantaged position to take profitable opportunities. If they do not receive
support or protection, they can end up in severe and persistent poverty. As a consequence, this
approach is generally used by policy makers that aim to protect these vulnerable groups
through social policies. However, this approach risks including people in better conditions
who do not need any protection (Barrientos, 2013).
55
2.3 Vulnerability in practice: The Chilean Social Protection
System
Following the same path as other developing countries, Chile has expanded its social
protection programmes since the 1990s but mainly since the 2000s. The decade of the 1990s
was characterized by the implementation of programmes and policies that were focused on
poverty reduction according to the basic needs framework. However, it was at the end of the
1990s when a new model of social policy started, based on guaranteeing social rights (Hardy,
2006).
This was accompanied by an increase in social public spending as a percentage of GDP,
from 12.5% in 1990 to 16.5% in 2009. This translated into an average of 13.2% during the
period 1990-2000 and an average of 14% between 2001-2009 (Rodríguez and Flores, 2010).
However, social protection spending, which is the main component of social public
expenditure, decreased as a percentage of GDP, from 8% in 1990 to 7.4% in 2009. In contrast,
education and health expenditure rose during the same period, from 2.3% to 4.4%,
representing from 1.8% to 4.0% of GDP respectively (Rodríguez and Flores, 2010). This
shows that social protection spending had been decreasing relatively from the 1990s and that
the public social expenditure was still low compared with the other countries within the region
(an average31 of 18.4% of GDP in 2007-2008) (ECLAC, 2010) and also with countries. Today
Chile has the third lowest levels of poverty and extreme poverty in the region32 and this is
mainly attributed to its social policies applied since the 1990s (Robles, 2011).
The objective of the Chilean Social Protection System is to provide inclusive support to
the population through their life-cycle. It provides access to education and work opportunities
covering the risks of illness and disability and also guaranteeing an adequate pension in old age.
The foundations of this System were the health reform AUGE (which provides explicit
guarantees for a set of health conditions that have been progressively increasing over time), the
31 Figures for individual countries range from less than 8% of GDP in Ecuador, Guatemala and Peru (central government) to more than a fifth of GDP in Argentina, Brazil, Cuba and Uruguay. 32The level of poverty has been decreasing during the last two decades in Chile, from 38.6% in 1990 to 14.4% in 2012. Only the estimation of 2009 reported an increase (15.1%). These official figures of absolute poverty in Chile originated from the National Survey of Socio-economic Characterization (CASEN).
56
Chile Solidario (a poverty reduction programme, which provides a guaranteed minimum income
for the poorest in the country), and unemployment insurance for formally employed (Hardy,
2006). All these programmes were introduced by the government of President Ricardo Lagos
(2000 - 2006).
The following government of President Michelle Bachelet (2006-2010) formally
institutionalized the Social Protection System, under the name Red Protege (Protection
Network). This system included the previously created programmes and also some
programmes created during this government. It includes the Integral Protection System for
Children Chile Crece Contigo for children between 0 and 4 years and their mothers during and
after pregnancy, the Social Protection System of Labour, designed for men and women
workers to promote decent working conditions for working lives, and the Pension Reform that
also created a solidarity-based pillar for the old age pensions.
The implementation of the new Social Protection System widened the coverage of
targeted programmes, from the previous focus on households in poverty to the inclusion of
households vulnerable to poverty. This new target population includes not only households
living in poverty but also middle and low-income households in unstable economic situations
who face the risk of falling into poverty.
This change in the orientation of social policy required a new mechanism to select its
beneficiaries. A new targeting tool was designed named Ficha de Protección Social (FPS) which
started to be implemented in the year 2006. The FPS was a proxy means test. Considering the
importance of informal sources of income in the poor population, the use of either a simple
means test or an unverified means test is difficult. The FPS was the tool determining access to the
Social Protection System, based on applications made by local councils. Over 10 million
Chileans have had their data recorded by the FPS in all municipalities (more than half of the
national population considering that by 2010 the estimated population was approximately 17
million (Larrañaga et al., 2010).
The FPS introduced a conceptual and methodological change compared with the previous
mechanisms for selecting beneficiaries, named Ficha CAS. Instead of focusing on durable
goods and housing characteristics, the FPS focuses on the individual’s capacity to generate
income and the household’s needs.
57
The income generation capacity (CGI), the permanent incomes of the household,
including pensions or monetary subsidies, and the reported current income, are taken into
consideration. This emphasizes permanent income 33 in the ranking households. The idea
behind the estimation of the CGI for all the individuals of the household able to work is to
consider not only the current and declared income but their potential to generate income.
Behind this method is a view of vulnerability as insufficient permanent income, in the sense
that the income that a family has today matters less compared with the permanent income that
they can generate. For example, a family could be in poverty today but be out of poverty in the
future and vice versa. In addition, this estimation attempts to minimize the under reporting of
income that is usual in household surveys, especially when the goal of the survey is to qualify
to be the beneficiary of a social programme. Despite these advances, the CGI still does not
measure vulnerability directly.
After the calculation of all the CGI inside a household, and in order to obtain the
permanent income that a household has, some household needs are also taken into
consideration, such as the number of household inhabitants, their gender and age, and adjusted
by equivalence scales. In addition, special needs are also taken into consideration if there are
any persons with physical or mental disabilities belonging to the household. Behind this
consideration of special needs depending on the composition, size and demographic
characteristics of the household is also the idea of vulnerability, but this time, the
vulnerabilities associated with certain groups, such as small children or people with disabilities
who require care and someone to look after them. The assumption is that either someone in
the household must look after them, who consequently cannot work or they need to pay
someone to care of them. The presence of a carer in the household reduces the CGI of the
household.
33 Here, permanent income means income that is not affected by transitory income changes. It represents the income that households on average should have regardless of their current income. This is not strictly the same as the definition of permanent income in economic theory. The hypothesis of permanent income (PIH), developed for the first time by Milton Friedman (Friedman, 1957), tries to incorporate the idea that people smooth out consumption throughout their lives. The differences between current consumption and income can be explained by expectations of future income. Under this hypothesis, people smooth out consumption to avoid transitory changes in income affecting their current consumption.
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After estimating the capacity of the household to generate income, the FPS creates,
through econometric techniques, a ranking of the families in Chilean society in order to
prioritize social expenditure. At the end of the process, each family is assigned a score to locate
them in one percentile of the distribution of the household survey representative of the whole
population (CASEN).
With this score and location in the ‘permanent income’ distribution, families can apply to
social programmes. There are two important FPS score thresholds that allow families to apply
to some social programmes, the first being in the 40th percentile of the distribution and the
second in the 60thpercentile. This means that if a household belongs to the 40th percentile of
the population classed as most vulnerable they can access some programmes or be eligible for
other programmes if they are under the threshold that identifies the 60th percent most
vulnerable of the population. Social Programmes use these thresholds, or set their own
thresholds in conjunction with other requirements in order to select beneficiaries.
The 40th percentile most vulnerable sector of the population qualify to apply to specific
social programmes. In this respect, it can be said that the FPS considers vulnerability as well as
poverty. Under this approach, not only are people in poverty qualified to receive Social
Protection but also people out of poverty. The wider coverage of the Social Protection System
shows a social policy concerned with vulnerability to poverty.
Summarizing, it would still be an exaggeration to say that the FPS tool is an instrument
designed to measure the vulnerability of households. The variables used by the FPS could be
included to evaluate a household’s resources in a targeting tool based on poverty (Larrañaga et
al., 2014). However, there are some aspects that can be considered as vulnerability sensitive,
for example the consideration of groups with special needs and the wider coverage of social
programmes beyond poverty thresholds.
Since its introduction in 2006, the FPS has been criticized as an imperfect instrument for
assessing household poverty (Larrañaga et al., 2010). One of the critiques is in relation to the
transparency of the calculation of the FPS score because the algorithm of calculation is kept
secret to avoid manipulation. This is not in line with the right of individuals to know how their
score has been calculated. Another critique refers to the updating that the data collected by the
FPS have (Larrañaga et al., 2010). The FPS provided a score that remained valid for several
59
years without any need for updating in between. This meant that households could apply to
social programmes without being evaluated again. The recertification of a score did not happen
unless the family asked for it. Recertification only happened when households believed their
conditions had deteriorated since the previous certification. In addition, it was shown that
there were considerable distortions in the data collected by the FPS compared with the
National Survey of Socio-economic Characterization (CASEN) (Larrañaga et al., 2010). This
meant that some households had altered some characteristics or some interviewers had
collected the information erroneously. In both cases, the ranking of a household would
become distorted. This undermined the principle of fairness that should be present in any
Social Protection System. For example, in the FPS data, a higher percentage of households
with people with disabilities was observed than in household surveys (2.5 times more than in
CASEN); the same applied to the percentage of households with women as head of the
household (1.6 times higher than CASEN). A similar effect occurred with household size,
reported to be 15% smaller than by CASEN. This potential manipulation of data was more
prominent in the lower deciles, perhaps because they were closer to getting a low score in the
FPS. This potentially false data generated a generalized fall in the FPS scores. In January 2010,
there were 3.77 million, 22.5% of the population, with scores below the threshold (6,035
points) that delimited the 10th percentile. This means that in the lowest decile there were more
than double the numbers of people than expected (Larrañaga et al., 2010).
As a consequence of these issues with the FPS, it was replaced with the Registro Social de
Hogares (RSH) in January 2016. The RSH incorporated the three main suggestions for
improvement made by the technical commission. First, it relies on information from
administrative sources instead of information self-reported by the households. Second, instead
of relying on a ranking of the population in terms on their level of poverty or vulnerability, the
focus is on excluding the richest groups. Third, each social programme will rely on information
specific to its objectives, instead of a unique score used for all equally (Larrañaga et al., 2014).
The RSH is a registry of information drawn from different sources: FPS or Ficha Social and
the State’s data bases. Among the latter are the Servicio de Impuestos Internos (SII), Registro Civil,
Administradora del Fondo de Cesantía (AFC), Instituto de Previsión Social (IPS), Superintendencia de
Salud y Ministerio de Educación among others.
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There are two main changes that the RSH proposes in order to improve on the FPS
(Larrañaga et al., 2014). The first one is the use of State administrative data instead of just self-
reported data from households. The FPS only used data provided by the individuals creating
the potential for misreporting explained above. The RSH still uses data provided by individuals
but reduces the potential for error by using administrative data too. The second change
introduced by the RSH is using criteria for exclusion as well as inclusion in defining the
vulnerable group. Individuals who have vehicles, properties or other assets above some value
are excluded from receiving social assistance. The RHS tries to exclude the population on
higher incomes through the use of available administrative data. The objective is to reduce the
error of including people who should not be receiving social benefits, called Error Type II. At
the same time, the RSH still allows some exceptions in the exclusion component depending on
the characteristics of the household. For instance, the value of their property is not considered
for individuals older than 60 years; income from work is not considered for younger people
between 18 and 24 years who are studying and earning wages lower than double the minimum
wage; the value of a car is not considered for households with a disabled person/s.
Independently of the mechanism for collecting the data and selecting the beneficiary, the
Chilean Social Protection System is still targeted to the 40 or the 60 per cent most vulnerable
of the population, depending on the programme. This means that the idea of vulnerability to
poverty is still embraced. The only thing that has changed between the mechanisms for
selecting the beneficiaries is the better identification of this group within the whole population.
In this context, this research pays attention to the lowest 60 percent of the income distribution.
This research uses income distribution to identify the 60 percent most vulnerable.
2.4 An empirical approach to vulnerability to poverty
In general terms, vulnerability to poverty can be defined as the probability that individuals
or households will find themselves in poverty in the future (Calvo & Dercon, 2007; Chaudhuri,
2003). The main objective of a vulnerability to poverty measure would be to identify this
probability of falling into poverty that every household or individual faces. After the
61
identification of this probability, a threshold to distinguish between the vulnerable and non-
vulnerable is needed.
There is no consensus on a unique definition, measurement and threshold of vulnerability
to poverty. Considering this fact, this research uses an empirical approach to identify the
vulnerable to being in poverty in the future. This study combines the theory and the evidence
to evaluate the changes of vulnerability to poverty focusing on a fixed group in the population.
People in vulnerability are those who are in the six lowest deciles of income distribution. Let
us see in detail the argument behind this decision.
From a theoretical point of view, we can start from the notion of an ‘augmented’ poverty
line proposed by Cafiero and Vakis’s (2006). The authors argue that this line should consider
not only the package of consumption goods and services necessary to satisfy the minimum
standard of living but also a basic ‘basket of insurance’ against ‘unacceptable risks’. Their
objective is to incorporate risks into the measurement of poverty. Under this
conceptualization, the ‘augmented’ poverty line incorporates vulnerability in a broader
perspective. It is not only the fact of being subject to shocks but also the welfare consequences
of being exposed to risks.
The notion of an ‘augmented’ poverty line has been incorporated into the vulnerability
approach to defining the middle class proposed by López-Calva & Ortiz-Juárez (2014). They
define as middle class a household that faces a probability of falling into poverty lower than
10%. The authors estimate the income per capita per day associated with this probability,
finding a threshold that works as an ‘augmented’ poverty line. The group of people whose per
capita incomes are below this threshold have incomes at or below US$10 dollars PPP a day
and above the poverty line of US$4 dollars PPP a day. They are considered vulnerable. The
middle class includes households with per capita income between US$10 and $US50 dollars a
day.
The concept of the most vulnerable of the population takes into consideration not only
people in vulnerability to poverty but also those in poverty. The most vulnerable are people
currently in poverty and people not in poverty but facing a high risk of being in poverty
because of fragile economic conditions. Considering both these two groups as the vulnerable,
people under the proposed threshold of US$10 dollars are vulnerable. The application of this
62
threshold to Chile shows that the most vulnerable comprises around 50 percent of the
population. The threshold of US$10 dollars PPP a day is around the 50th percentile of income
distribution, meaning that 50 per cent of the population is vulnerable (Hardy, 2014). This
approach is used in Chapter 3 to estimate the vulnerability income threshold for Chile
considering the new poverty line implemented since 2013.
The evidence of poverty dynamics also shows that the first 6 deciles of income
distribution are the most vulnerable. The Chilean population has shown mobility between
states of poverty and non-poverty. As noted in the Introduction, Neilson et al. (2008) show
from 1996 and 2001 panel data that although poverty levels have been reduced in Chile, a high
percentage of the population is at risk of being in poverty at some time. The poverty rate fell
from 22% to 18% between 1996 and 2001. However, more than 34% of the population was in
poverty as least once during this time, and 46% of people in poverty in 2001 were not in
poverty in 1996 (Neilson et al., 2008). The group of people that fell into poverty came, in the
majority, from the third up to the sixth decile of income distribution. They found high relative
mobility among the first seven deciles of the population, meaning that an important percentage
of the population is vulnerable to falling into poverty.
Another relevant approach is the shared prosperity concept embraced by the World Bank.
It focuses on the income of the bottom 40 percent of income distribution over time (Basu,
2013; World Bank, 2016a; World Bank Group, 2015) which ideally should grow at a higher rate
than, or at least in proportion to, the rate of income growth for the general population. This
measure has been discussed for some time but criticism pointing to the arbitrariness of the
threshold of the 40th percentile still remains. The shared prosperity concept suggests that in the
same way that countries may vary in their definition of poverty lines they could vary in their
definition of shared prosperity. They can decide how many deciles of their income distribution
are used to define their own shared prosperity. As a starting point, the 40th percentile is
proposed as the proportion of the population that must benefit substantially from growth.
The so-called Palma Ratio proposed by Palma (2011; 2014) also considers the bottom 40
per cent of income distribution as the proportion of the population capturing the
disadvantaged segment of the income distribution. Palma (2011; 2014) found that the relation
between the highest decile and the bottom four deciles of the income distribution can best
63
summarise a country’s income inequality. The remaining half of the population, represented by
the middle and upper-middle deciles of the distribution from decile 5 to 9, are homogenous
with respect to the proportion of national income that they get. This implies that income
inequality is explained by the relative share of national income captured by the richest and the
poorest segments of the population. They acquire over half of the national income. In Palma's
view, high income inequality in Latin American countries is mainly explained by the low
proportion of national income that is captured by the bottom 40 per cent relative to that
captured by the top decile.
This ‘augmented’ poverty line has also been used in applied social policies. In the case of
Chile, the government defines that the Social Protection System goes to the 40 or to the 60
percent most vulnerable people of the population depending on each Social Programme's
particular target. This is made through the use of a targeting tool named the Registro Social de
Hogares, that was described in section 2.3 of this paper.
Brazil is another Latin American country where the definition of the target population for
social assistance is through the notion of vulnerability as extended poverty. The initial pre-
fixed target of covering 11 million families through Brazil’s Bolsa Família programme (Programa
Bolsa Família, PBF) was expanded to 12.5 million in the year 2009. This increase in the
coverage of the programme was decided because of the programme’s errors of inclusion due
to the income volatility of the poorest families. Soares et al. (2010) showed that 45 per cent of
those receiving the benefit were not actually eligible, mainly because their income level was
slightly above the income threshold. They provide evidence showing that poor individuals face
income insecurity, meaning that their eligibility may vary from month to month. This makes
the real target population much larger than those identified as poor at a given moment in time.
However, from their estimations, they proposed that the PBF would effectively need to cover
15 million families in order to include the families most vulnerable to poverty.
Based on this empirical evidence and on the theory of an augmented poverty line, this
study will rely on the bottom six deciles of the income distribution as the population
considered vulnerable. People who belong to the lowest six deciles of the income distribution
can be considered as more vulnerable to poverty than the rest of the population. The empirical
research below focuses on this group in the population and its changes over time.
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2.5 Data
The data is drawn from the National Socio-economic Characterization Survey (CASEN)
from 1990 up to 2013. The CASEN is applied between November and December every two
or three years by the Ministry of Social Development and it is representative at the level of
country, regions, and rural and urban areas. The samples have on average 59 thousand
households in each survey. The publicly available CASEN have been applied in the years,
1990, 1992, 1994, 1996, 1998, 2000, 2003, 2006, 2009, 2011 and 2013. This research will
consider all these years to make a comparison between income distributions and to explore
how the vulnerable groups have been changing during this period.
This research compares households’ income distributions during the mentioned period,
understanding household earnings as a measure of living standards. Household earnings are
best captured by one of the three different definitions of household income that the Chilean
government considers in defining their social programmes: autonomous household income.
From the point of view of this research, this income is the most appropriate way to understand
a household's permanent living standards because it represents the income that the household
generates. Formally defined, autonomous income represents the income from salaries and wages,
earnings from self-employment, self-provision of goods produced by the household,
allowances, bonuses, rents, interest, pensions, life insurance payouts and transfers between
individuals. It does not consider the monetary transfers that the state provides to families, such
as contributions in cash distributed through social programmes34. Autonomous income plus
monetary transfers is named monetary income. Finally, there is another category of income,
named total income, which considers the monetary income plus the imputed rent of the
household. Imputed rent applies to households who do not pay rent for a dwelling. The
imputed value is equivalent to the rent to be paid in the market for a similar house.
34 CASEN records the subsidies received by households for Basic Solidarity Pension Old Age and Disability, Solidarity Pension Contribution Elderly and Disability, Family Subsidy, the Mental Disability Allowance, Family Protection Bond and Bond Exit Chile Solidario, Extraordinary Bonds Family Support (March) / (August), Consumer Subsidy Payment Water, Sewerage and Sewage Treatment (SAP), Electrical Grant, Unemployment Allowance and Family Allowance.
Table 2- 1 Summary of CASEN statistics by years of application
Source: Author’s elaboration from CASEN 1990, 1992, 1994, 1996, 1998, 2000, 2003, 2006, 2009, 2011, 2013. All equivalent incomes are expressed in 2013
Chilean Pesos. Weighted?, To correct last two rows.
CASEN
years
Survey
Observations
Extreme
Poverty
Non-Extreme
Poverty
Out of
povertyMean
Standard
DeviationMedian Mean
Standard
DeviationMedian Mean
Standard
DeviationMedian
1990 104,391 12.7% 25.7% 61.6% 257,754 456,385 141,934 259,472 456,111 143,617 273,592 466,589 154,575
1992 142,703 8.8% 23.9% 67.3% 298,195 522,099 165,006 299,775 521,762 166,973 312,218 532,948 176,254
1994 177,340 7.2% 20.1% 72.6% 320,926 1,164,004 178,462 322,129 1,163,859 179,866 332,770 1,167,795 188,875
1996 133,886 5.6% 17.5% 76.9% 359,431 599,757 197,431 362,945 598,755 201,510 384,826 615,745 217,980
1998 187,809 5.4% 16.1% 78.5% 379,825 707,783 207,977 383,590 706,667 211,198 405,970 719,552 229,968
2000 252,217 5.3% 14.7% 80.0% 388,992 731,987 211,956 392,999 730,887 215,430 417,105 744,383 235,717
2003 256,447 4.5% 14.0% 81.5% 381,616 788,468 214,653 385,948 787,386 218,801 408,101 803,166 236,288
2006 268,508 3.1% 10.5% 86.4% 410,244 643,376 246,661 415,193 641,739 251,303 435,543 653,289 268,224
2009 246,782 3.5% 11.4% 85.1% 442,276 711,499 262,054 453,726 708,117 273,104 474,136 720,600 289,683
2011 200,160 2.6% 11.7% 85.7% 456726.8 673717.9 277843 466740.9 670562.4 286025.1 489746.8 684732.7 303496.5
2013 217,967 2.3% 5.3% 92.4% 504756.9 771161.8 310252.4 517384.6 767605.1 321599.1 542108.6 781582.9 341809.8
Equivalent Autonomous
Income
Equivalent Monetary Income Equivalent Total IncomePoverty Levels
Autonomous income is the best option to consider because it is the income that the
household itself generates. Monetary income and total income are also considered when making the
estimations in this research. The comparison between the relative densities of autonomous income
and monetary income is crucial to analyze the effect of monetary transfers from government to
households over the most vulnerable deciles. The estimation of relative density to the total
income is a useful benchmark because it is the income used in Chile to calculate poverty rates.
Taking into account that the objective is to understand household income changes, all the
income definitions in the survey are considered in order to get a more complete picture.
In order to maintain the comparability of incomes over the years, all incomes were
deflated using information from the National Statistics Institute (INE) to express them in 2013
values. In addition, incomes have been adjusted considering equivalences of scale. A square
root scale has been used, which divides household income by the square root of household
size35. This scale has been used in recent OECD publications (e.g. OECD 2011, OECD 2008)
to compare income inequality and poverty across countries. Considering Chile is an OECD
country, this scale is a useful reference. After these adjustments, we can find the equivalent
household income distribution for each year available. This means that although when
household income is the variable considered initially, the final information is expressed by
individuals in order to consider the size of the household. Instead of labelling this "equivalent
household income distribution" every time, it is referred to simply as income distribution from
now on. The only distinction made will be between autonomous, monetary, or total income
distributions.
Table 2-1 shows a description of CASEN for each year of application. It contains the
number of observations and the poverty rates. The mean, median and standard deviation of
the three incomes is provided. Incomes are expressed in 2013 Chilean Pesos and they
correspond to equivalent income.
35 This implies that, for instance, a household of four persons has needs twice as large as one composed of a single person.
67
2.6 Methodology
This section presents the method used to analyze the changes in vulnerability deciles
between 1990 and 2013 in detail. The first part presents the Relative Distribution method which
allows two income distributions to be compared by deciles. The second section describes the
polarization indexes that this method proposed.
This study uses the R statistical package reldist developed by Handcock and Morris (1998;
1999) to implement the method. The authors explain in detail the steps to use this method
here http://www.stat.ucla.edu/~handcock/RelDist from where the package reldist can be
downloaded to use in the R statistical package. Handcock and Aldrich (2002) also provide the
syntaxes of one of the examples provided in Handcock and Morris (1999).
2.6.1 The Relative Distribution method: a non-parametric framework
In order to closely examine patterns of changes in income distribution during the last two
decades, this research uses the Relative Distribution method introduced by Handcock and Morris
(1998; 1999). The Relative Distribution method is a non-parametric framework for analyzing data
taking into account all distributional changes. This framework uses a combination of graphical
tools for exploratory data analysis with statistical summaries, decomposition, and inference.
In this study, a comparison is made between income distributions at different time points.
It is not exactly the same group of people, because the same people are not interviewed each
time, but they always represent the national population. A comparison is made between the
incomes of the reference population, 𝑌0, and the incomes of the comparison population, 𝑌. In
this case, the reference population is the income distribution in the base year, 1990, and the
comparison population is the income distribution for the comparison year, 2013. This
represents the longest span of years and their comparison shows the changes during the period
under consideration. However, other comparisons are also made. The distribution in the base
year 1990 is compared with every year of the survey application, to explore the change in every
short period with available information. In addition, the 23-year series is split in two, from
68
1990 to 2000 and from 2000 to 2013. In this case, the beginning year of the decade is the
reference distribution and the end year of the decade is the comparison. This display allows us
to observe the changes that took place within each decade.
The relative distribution method allows us to observe the differences between the
reference distribution and the comparison distribution. The comparison between them takes
advantage of the information implicit in the distributions and goes beyond comparison of
means and variances. It helps explore whether the low, middle, and upper deciles of the
income distributions have changed and if the distribution is more or less polarized.
In order to interpret the results from the comparison between income distributions for
different years, it is important to understand what is called the relative distribution. The relative
distribution is a random variable obtained by transforming a variable from a comparison
group, Y, by the cumulative distribution function (CDF) of that variable for a reference group,
𝑌0. The relative data, r, obtained from this transformation represents the rank of the original
comparison value in terms of the reference group's CDF. It is interpreted as the percentile
rank that the original comparison value would have in the reference group. Then, the CDF and
the density of the relative data can be used to completely represent and analyze distributional
differences.
To exemplify relative density in this research, the 1990 and 2013 income distribution are
considered. In this case, the income in the year of comparison (2013) is assigned the rank it
would have had in the income distribution for the reference year (1990). These ranks are
represented in a histogram in which bin cut-off points are defined by the deciles of the 1990
distribution. The frequency in each bin represents the fraction of 2013 individuals falling into
each decile of the 1990 income distribution. If both income distributions were the same, the
relative deciles would take a uniform value of 10% over the income scale, because 10% of
2013 individuals would fall into each 1990 income decile.
The relative probability density function (PDF), 𝑔(𝑟), can be interpreted as a density ratio.
It is the ratio of the fraction of respondents in the comparison group to the fraction in the
reference group at a given level of the outcome attribute. For this research, it corresponds to
the ratio of the income density in the comparison year (2013),𝑓(𝑦𝑟), to the income density in
the reference year (1990) , 𝑓0(𝑦𝑟), evaluated at each decile of the income distribution in the
69
reference year (1990). In other words, the density ratio is the fraction of individuals in the
comparison population that are in each reference income decile.
In addition, the relative data can be interpreted as the percentile rank that the original
comparison value would have in the reference group. And the relative CDF, 𝐺(𝑟), can be
interpreted as the proportion of the comparison group whose attribute (income in this case)
falls below the rth quantile of the reference group.
The relative PDF, is then,
𝑔(𝑟) =f(y
r)
f0(yr) y
r≥ 0
𝑔(𝑟) =f(y
r)→ density comparison distribution
f0(yr)→ density reference distribution
The relative PDF, 𝑔(𝑟) , is greater than 1 when there is a greater frequency of
observations in the comparison distribution, 𝑌 , than in the reference distribution, 𝑌0 . The
opposite happens, the relative density is lower than 1, when there is a lower frequency of
observations in the comparison distribution, 𝑌 . In the case of no difference between
distributions, the relative distribution is 1. It always happens when the distributions intersect.
An advantage of the relative method is the option to decompose the relative distribution
into changes in location and in shape. The changes in location are usually attributed to changes
in the median or mean of the income distribution and the changes in shape can be related with
changes in variance, asymmetry, or other distributional characteristics. Let r the percentile rank
that an income value y from the comparison year has in the reference year.
The relative distribution for the comparison year can be decomposed in the following
way,
𝑔𝑡(𝑟) =𝑓(y
r)
𝑓0(𝑦𝑟)=
𝑓𝐴(𝑦𝑟)
𝑓0(𝑦𝑟)×
𝑓(yr)
𝑓𝐴(𝑦𝑟)
70
where 𝑓𝐴(𝑦) = 𝑓0(𝑦 + 𝜌) is a density function adjusted by a shift with the same shape as the
reference distribution, 𝑓0(𝑦𝑟) , but with the median of the comparison one, 𝑓(𝑦𝑟) . This
research uses a median adjustment instead a mean adjustment because it is more appropriate in
the case of the skewed income distribution considered. The value of 𝜌 is the difference
between the medians of the comparison and reference distributions. When the two
distributions have different medians, the ‘location effect’ increases if the comparison median is
higher than the reference median, and it decreases if the comparison median is lower. In the
case where the two distributions have the same median, the density ratio for the location
difference is uniform [0,1].
The second component of the decomposition is the density ratio for the shape difference
which represents the relative density net of the location effect. This shape effect isolates any
re-distribution that happened between the reference and comparison populations. The density
ratio for the shape allows us to observe if there is polarization of the income distribution.
2.6.2 Decomposition by covariates
The relative distribution method also allows the impact of covariates on the variable of
interest to be identified. In the same way as the regression setting explores the impact of
covariates over the outcome, the relative distribution method explores the distributional
changes related to covariates. The impact of covariates over the income distribution can
happen through two channels. The first is a compositional shift in the covariates from one
period to the other. For instance, the proportion of heads of household with higher education,
or the proportion of women heads of household could have changed between one period and
the other. The method quantifies the impact of this change on the distribution of income. The
second effect of covariates over income can be through a change in the relationship between
the covariates and the response variable –income in this case. Taking the same example, even
Overall relative
density
Density ratio
for the location
effect
Density ratio
for the shape
effect
= x
71
if the proportion of women heads of household has not changed, the conditional distribution
of income by sex of head of household could have changed, changing the overall income
distribution.
Usually, the covariate composition and the covariate response relation change
simultaneously and this method proposes a mechanism to separate out the effects. The
approach is similar to location and shape decomposition, in that it creates a counter-factual
distribution to isolate every shift. It adjusts the reference population to have the same covariate
composition as the comparison population. As it is clearly detailed in Handcock and Morris
(1999), this adjustment allows us to answer the question: “How would the income distribution
have looked if there had been no changes in a covariate?” The residual differences in the
relative distribution are interpreted as the covariate-response relationship.
Let’s see in detail how a counter-factual distribution is constructed for the response
variable in the reference population adjusted by the composition of covariates in the
comparison population. The response variables, as before, are Y and 𝑌0, which correspond to
the variables we want to compare across the two periods. The covariates are represented by Z
and 𝑍0 which, in this case, are categorical 36 ranging from {1,2, . . . 𝐾} . Let {𝜋𝐾0 }𝑘=1
𝐾 be the
probability mass function of 𝑍0 and {𝜋𝑘}𝑘=1𝐾 be the probability mass function of Z which
together denote the population composition with respect to the covariate. For conditional
comparison of the response variable Y between the two periods, the densities are considered
of
𝑌0 given that 𝑍0 = 𝑘:
𝑓𝑌0|𝑧0(𝑦|𝑘) 𝑘 = 1, … , 𝐾
and the density of Y given that Z=k:
36 The extension to continuous covariate or to multivariate covariate can be found in Handcock and Morris (1999)
72
𝑓𝑌|𝑍(𝑦|𝑘) 𝑘 = 1, … , 𝐾
The two densities represent the covariate-response relationship. The marginal densities of
Y and 𝑌0 can be represented by, respectively:
𝑓0(𝑦) ≡ ∑ 𝜋𝑘0
𝐾
𝑘=1
𝑓𝑌0|𝑧0(𝑦|𝑘) = 𝐸𝜋0[𝑓𝑌0|𝑧0
(𝑦|𝑍0)] (𝑎)
𝑓(𝑦) ≡ ∑ 𝜋𝑘𝐾𝑘=1 𝑓𝑌|𝑧(𝑦|𝑘) = 𝐸𝜋[𝑓𝑌|𝑧(𝑦|𝑍)] (𝑏)
Equations (a) and (b) represent “the overall distribution of the response as a weighted
average of the distributions given the covariate where the weights are the proportions of the
population with that value of the covariate” (Handcock & Morris, 1999, p. 91). From these
equations it is clear how the covariate affects the overall distribution.
Consider the case where the conditional distributions of the response are the same for
each value of the covariate, that is, fY0|z0(y|k) = fY|z(y|k), k = 1, … , K . Therefore “the
subgroups defined by the covariate have identical distribution of the response and the relative
distributions for each group across the two populations will each be uniform” (Mark Stephen
Handcock & Morris, 1999, p. 91). The two populations are equivalent given the covariate. The
marginal density of Y0 can be written by:
𝑓0(𝑦) ≡ ∑ 𝜋𝑘0
𝐾
𝑘=1
𝑓𝑌|𝑧(𝑦|𝑘)
The comparison between this equation to (b), identifies the differences between 𝑓(𝑦) and
𝑓0(𝑦), which are because of the differences in 𝜋𝐾0 and 𝜋𝐾 , the compositions of the covariate in
each population. The alternative situation is obtained “where the probability mass function of
73
the covariate is the same in each population, that is 𝜋𝐾0 = 𝜋𝐾 , 𝑘 = 1, … , 𝐾 . Then the
marginal density of 𝑌0 can be written as”: (Handcock & Morris, 1999, p. 91).
𝑓0(𝑦) ≡ ∑ 𝜋𝑘
𝐾
𝑘=1
𝑓𝑌0|𝑧0(𝑦|𝑘)
Here, the differences between𝑓0(𝑦) and 𝑓(𝑦) in (b) are because of the differences in the
conditional densities 𝑓𝑌0|𝑧0(𝑦|𝑘) and 𝑓𝑌|𝑧(𝑦|𝑘), 𝑘 = 1, … , 𝐾 . They are the differences in the
covariate-response relationship between the two populations.
Using the ideas presented, a counter-factual distribution can be constructed for the
compositional difference. In it, the distribution of 𝑌0 composition-adjusted to Y is defined as:
𝑓0𝐶(𝑦) ≡ ∑ 𝜋𝑘𝐾𝑘=1 𝑓𝑌0|𝑧0
(𝑦|𝑘) (c)
The comparison between (a) and (b) and (c) allows us to observe that the density 𝑓0𝐶(𝑦)
“corresponds to a counter-factual population with the covariate composition of the
comparison population and the covariate-response relationship of the reference population”
(Handcock & Morris, 1999, p. 91). Population composition remains constant when 𝑓0𝐶(𝑦) to
𝑓(𝑦) are compared, and then differences are isolated in the covariate-response relationship. In
contrast the comparison between 𝑓0(𝑦) and 𝑓0𝐶(𝑦) isolates the impact of the compositional
shifts because they have the same covariate-response relationship.
Through the use of the composition-adjusted response distribution, it is possible to
decompose the overall relative distribution in two: a “component that represents the effect of
changes in the marginal distribution of the covariate (the composition effect), and a
component that represents the residual changes” (Handcock & Morris, 1999, p. 91).
Two relative distributions are constructed from the three distributions -𝑌0, 𝑌0𝐶 , and 𝑌.
They represent the effect of the covariate composition and effect of residual changes. In order
74
to isolate the composition effect, the relative distribution is taken of 𝑌0𝐶 to 𝑌0, denoted R00𝐶 =
𝐹(𝑌0𝐶). When the comparison and reference population have the same marginal covariate
distribution, R00𝐶 will have a uniform distribution. In order to isolate the residual effect the
relative distribution is taken of 𝑌 to 𝑌0𝐶 , denoted R0𝐶 = 𝐹(𝑌0𝐶) . When the conditional
response distributions are the same in both populations, R0𝐶 will have a uniform distribution.
The decomposition is represented in terms of the density ratios in the following
expression:
𝑓(yr)
𝑓0(𝑦𝑟)=
𝑓0𝐶(𝑦𝑟)
𝑓0(𝑦𝑟)×
𝑓(yr)
𝑓0𝐶(𝑦𝑟)
2.6.3 Income distribution polarization
In addition, the Relative Method approach also allows the polarization of income
distribution to be measured through the Median Relative Polarization index (MRP). The
polarization index and its decomposition are a method for measuring the relative density in the
centre or tails of the distribution. The MRP is defined in the following way:
𝑀𝑅𝑃(𝑓, 𝑓0) = 4 ∫ |𝑟 −1
2| 𝑔0
𝐴(𝑥)𝑑𝑟 − 11
0
Or,
Overall relative
density
Density ratio for
the compositional
effect
Density ratio
for the residual
effect
= x
75
𝑀𝑅𝑃(𝑓, 𝑓0) =4
𝑛𝑡(∑ |𝑟𝑖 −
1
2|
𝑛𝑡
𝑖=1
) − 1
The MRP “is the mean absolute deviation around the median of the location-matched
relative distribution 𝑔(𝑎)” (Handcock & Morris, 1999, p. 71). It is weighted by -2 in order to
emphasize deviations in the tails, and scaled to produce an index that varies between - 1 and 1
(Handcock & Morris 1998). When there is a convergence toward the centre of the distribution,
the index is negative, which means less polarization. In the opposite direction, a positive value
represents more polarization and an increase in the tails of the distribution. A zero value of the
index means no differences in distributional shape. When the only difference between F and
𝐹0 is location, (that is, 𝐹0(𝑦) = 𝐹(𝑦 + 𝜌) for some 𝜌, then 𝑔0𝐿 is the uniform distribution,
and MRP (F, F0) is zero. In this case, “none of the differences between F and 𝐹0 are because
of differences in distributional shape” (Handcock & Morris, 1999, p. 71).
Among several useful characteristics of the MRP index37, there is that it can be interpreted
in terms of a proportional shift of observations in the distribution from more central values to
less central values. For example, an MRP of 0.1 means a 10% population shift from the centre
of the distribution to the upper and lower quartiles. Another characteristic of this index is its
decomposition along the scale of y. Through this decomposition, it is possible to compare the
contribution of each section of the distribution to the overall polarization. This allows, for
example, the decomposition of the overall polarization in the contributions made by the
components above and below the median of g(r), which are defined by the following
equations:
𝐿𝑅𝑃(𝑓, 𝑓0) = 8 ∫ |𝑟 −1
2| 𝑔𝑚(𝑥)𝑑𝑟 − 1 (𝑎)
1/2
0
37 To see this in detail, see Handcock & Morris 1998 p.71.
76
𝑈𝑅𝑃(𝑓, 𝑓0) = 8 ∫ |𝑟 −1
2| 𝑔𝑚(𝑟)𝑑𝑟 − 1 (𝑏)
1
1/2
𝑀𝑅𝑃(𝑓, 𝑓0) =1
2𝐿𝑅𝑃(𝑓, 𝑓0) +
1
2𝑈𝑅𝑃(𝑓, 𝑓0) (𝑐)
These are the Lower Relative Polarization Index (LRP) and the Upper Relative
Polarization Index (URP). The LRP reflects the contribution to the median index of the
relative distribution below its median and the URP, of that above its median. The properties of
these indices are very similar to the MRP. They vary between -1 and 1 values; more
polarization is represented by positive values (increases in the tail of the distribution) while less
polarization is reflected by negative values (convergences towards the centre of the
distribution). When the shape component of the relative distribution is unchanging below the
median, then the lower index is zero. However, when it is above the median, then the upper
index is zero.
2.7 Empirical results
As a first approximation to exploring the differences between income distributions we can
compare their kernel densities. Figure 2-1 shows the kernel density estimates of the
autonomous income distributions at the two end points of the period 1990-2013, and Figure 2-
2 includes the kernel density estimates for the year 2000, a middle point between the two
extremes. It can be observed that the period 1990-2013 was characterized by an increase in the
median of the equivalent autonomous household income. The figures show a right shift
movement of the distributions each year, meaning an increase in the median of income. In
addition, the shape of the income distributions has changed during the period, with a higher
concentration of low incomes in 1990 compared with the distributions in the other two years.
77
With later observations, the income distribution is flatter than the previous one showing a
higher dispersion of values along the income distribution.
However, observing the kernel densities do not say very much about what is behind this
means increase and shape change of the income distribution. In order to understand how these
changes have affected different percentiles of the distribution, it is necessary to implement a
different method. The relative distribution method appears as a very useful framework to
answer these questions and to provide insights regarding how different groups of the
population have confronted these changes, especially the most vulnerable.
We already know that incomes are higher in 2013 than in 1990, but does this
improvement reach all the population? Are the higher deciles getting more benefits than the
lower deciles? Is the population in deciles of vulnerability increasing or decreasing with the
increase in incomes? Are the incomes more or less polarized now? All these questions can be
answered with this relative density method.
Figure 2- 1 Kernel Densities 1990 and 2013. Autonomous income distributions
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social.
78
Figure 2- 2 Kernel Densities 1990, 2000 and 2013. Autonomous income distributions
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social.
2.7.1 Relative Density
The following plots describe the relative probability density function (PDF) and the
relative cumulative distribution function (CDF) for all the periods under analysis –from 1990
to 2013- and also divided by decades: the decade from 1990 to 2000 and the little bit more
than a decade from 2000 to 2013. In the cases of both decades, the relative PDF and CDF are
calculated with the beginning year of the decade as the reference distribution and the end year
of the decade as the comparison.
The distinction between decades is interesting because of the difference between the
Social Protection System in each period. As it was explained in section 2.3, Chile initially
expanded its social protection programmes in the 1990s, but increased them considerably in
the early 2000s. This should be reflected in the most vulnerable deciles.
In addition, a distinction is made between the three measures of incomes mentioned in
section 2.5: autonomous income being that generated by household members; monetary income being
autonomous income plus monetary transfers from the government; and total income being
monetary income plus imputed rent. Relative densities are calculated for each kind of income
79
in order to compare differences among them. The comparison between the relative density of
autonomous income and the relative density of monetary income allows the effects of
monetary transfers on the deciles in vulnerability to be analyzed.
As it was explained, the relative PDF can be interpreted as a density ratio. In Figure 2-3, it
represents the ratio of the fraction of respondents in the comparison year, 2013, to the fraction
in the reference year, 1990, at the given level of income of each decile of the reference year,
1990. In other words, it is a comparison between the densities of observations in both years at
the income level associated with each decile in the reference year 1990. Values above 1
represent more density in the recent distribution -2013, while values below 1 represent less
density in the recent distribution. The value of the relative density represents the multiplicative
factor more or less. The second plot of Figure 2-3 shows the relative CDF in which each point
represents a specific earning level, and as you travel along the relative CDF curve, you can read
off the x and y axes the proportion of the 1990 individuals and the relative proportion of the
2013 individuals who live with that level of income.
Therefore, in Figure 2-3, the movements of the 2013 incomes relative to 1990 incomes
can be observed from two different angles.
Figure 2- 3 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Autonomous Income
80
Figure 2- 4 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Monetary Income
Figure 2- 5 Relative PDF and Relative CDF years 1990 and 2013, Equivalent Total Income
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
Figures 2-3, 2-4, and 2-5 display the PDF and CDF for all the periods under analysis,
where 1990 is the reference population and 2013 the comparison. Each figure represents the
different incomes considered. It is important to remember that the 1990 incomes were deflated
using information from the National Statistics Institute (INE) to express them in 2013 values
considering the inflation over the period. This means that these incomes are comparable and
the increase observed in 2013 income compared to 1990 income is independent of the changes
in the value of the money.
81
These figures show that the 6th decile is the inflection point between the two periods for
any of the three incomes under analysis. Under this decile, a relative distribution of less than
one means that if we choose any decile between the 1st and the 6th in the 1990 income
distribution, the fraction of individuals in 2013 that earn an amount of income corresponding
to these deciles is less than the analogous fraction of individuals in 1990. For instance, the
relative density at the sixth decile of original income is 0.76, so 24 percent fewer recent income
individuals attained this level of income. The relative density in the second decile, the lowest, is
0.17, meaning that only 17 percent of the 2013 individuals reach this level of 1990 income.
Considering the empirical approach, with individuals under the 60th percentile considered
vulnerable, these results show that the population in vulnerability, measured in 1990 terms, is
lower in 2013 than in 1990. The percentage of individuals in 2013 whose equivalent income is
under the 6th decile of the year 1990 has decreased considerably. Considering autonomous
income in Figure 2-3, the percentage of the population in the first decile is 37%, 17% in the
second and in the third one 27%. This value is less than one but increases little by little in each
consequent decile up to the 7th decile, where the relative density is more than one. This means
that the proportion of individuals who remain in the 1990 deciles of vulnerability in the year
2013 is substantially less. It can be said that the population living with household income levels
associated with vulnerability in the year 1990 is much smaller in the year 2013.
A higher concentration of individuals is observed in the first decile of 1990 autonomous
income in the year 2013 compared with the 2nd and the 3rd decile. However, this percentage is
reduced by half when the monetary transfers from the government are considered. After the
subsidies are considered in household income, the proportion of individuals in 2013 receiving
the income of the lowest 1990 decile is 18%. In Figure 2-4, it is observed that the
concentration of individuals in the 1st decile is reduced when monetary income is considered,
meaning that the monetary transfers are effective at increasing households' incomes and
getting them out of the lowest deciles, which represent poverty. However, this proportion is
not zero, which means that in 2013 there are still people living with the lowest decile income
of 1990.
The reduction of the proportion of individuals after the monetary transfers can be
observed in all the deciles that represent the vulnerability area of income distribution.
82
However, the reduction is much more important in the 1st decile than in the rest of the deciles.
Furthermore, in the 6th decile, the proportion of the population after monetary transfer is
higher and not lower than when autonomous income is considered. This could be reflecting
that monetary transfers are more focalized in the lowest decile of the population, or that
monetary transfers have a bigger impact on households with lower incomes. However, because
this is aggregate data, it reflects that people from lower deciles move to higher deciles,
increasing the proportion of people from the 6th decile on. The availability of panel data
explored in the second paper of this thesis will permit analyzing these movements in more
detail, allowing us to identify from which to which decile individuals are moving.
Independently of the limitation of the aggregate data, these results show that the
focalization of monetary transfers from the government has generated results that not only
reduce poverty, something that is already known, but also in terms of vulnerability. After the
monetary subsidies are received, the proportion of individuals living in the deciles of
vulnerability is reduced even more between the years 1990 and 2013. This means that the
action of the government’s social protection system has contributed to reducing the population
living in vulnerability further than the contribution of the increase in autonomous income of
the households.
By definition, the reduction of people living in the area of vulnerability means that
individuals are moving to the zones of more secure income represented by the 7th decile
onwards. From this decile, there is a greater frequency of individuals earning the incomes of
these 1990 deciles in 2013 than in 1990. This is represented by a relative density higher than 1.
The 7th decile shows relative densities a little bit higher than one, meaning that the proportion
of individuals in 2013 is slightly higher than in 1990. Moreover, the 8th decile contains 50%
more individuals in 2013 than in 1990. In the case of the 9th and the 10th decile, in the year
2013, it is more than two times more probable to reach those levels of income than in 1990.
This means that more than two times as many recent incomes moved into the higher deciles
than in the original cohort.
The relative CDF allows us to observe these numbers from another perspective. The
relative CDF can be interpreted as the proportion of the comparison year 2013 whose income
falls below the rth quantile of the reference year 1990. For example, at the median of
83
autonomous income in the reference year 1990 – meaning that half of the reference population
earns this income – the relative CDF at this point is 0.2. This means that 20% of the
comparison group experienced lower gains than this.
Considering again the deciles in vulnerability, the proportion of the comparison year 2013
whose autonomous income falls below the 4th decile of the reference year 1990 is almost 15%
and in the 6th decile of the reference year 1990, it is almost 30%. This means that the
proportion of the population living in vulnerability deciles in 1990 has decreased considerably
in 2013.
When monetary transfers are included in the equivalent household income, these
proportions are even lower, representing around 10% under the 4th decile and a little more
than 25% under the 6th decile. This shows again that Social Assistance has been effective in
reducing the population in the 1990 deciles of vulnerability. However, the reduction in
vulnerability mainly came from the increase in the income that households generate, their
autonomous income.
Considering that between 1990 and 2013 is a long span of time, this study calculates the
Relative PDF and Relative CDF over a shorter period. The decades from 1990 to 2000 and
2000 to 2013 – the last year with information – appear as a natural division because of the
increased emphasis on Social Protection from the year 2000 onwards. Figures 2-6, 2-7 and 2-8
show the relative PDF and CDF between 1990 and 2000 for the three kinds of income
respectively and Figures 2-9, 2-10 and 2-11 show the same estimations but for the years
between 2000 and 2013.
The reduction of the number of individuals in the vulnerability area of income distribution
happens in both decades. In 2000, less of the population were in deciles of vulnerability than in
1990, and the same happens in 2013 compared with 2000. The increase in household
autonomous income generated similar reductions in each decile in both periods but only
slightly higher in the second decade. For example, 58% of individuals are in 2000 in the 1st
decile of the 1990 incomes, and 52% are in 2013 in the 1st decile of 2000’s income. These
values in the 2nd decile are 47% for the first decade and 45% for the second decade. The 3rd
decile has a value of 64% in both periods. This means that the increase in household
autonomous income has generated similar reductions in vulnerability in both periods.
84
However, the reduction of individuals in vulnerability deciles changes in both decades
when the monetary transfers from the government are considered. The percentage of
individuals in vulnerability is lower after a household receives subsidies from the government.
The decomposition of the relative distribution by decade shows that this reduction is bigger in
the second decade than in the first one, as was expected because of the expansion of the Social
Protection System.
The monetary transfers from the government are responsible for the decrease in the
population in vulnerability deciles more importantly between the years 2000 and 2013 than
1990 and 2000. The effect of the action of government subsidies is concentrated mainly in the
first two deciles of the distribution in the first decade and the first three in the second period.
From those deciles onwards, the percentage of individuals in vulnerability deciles is very
similar considering autonomous or monetary income. However, when monetary income is
considered, the percentage from the 4th decile in the period 2000-2013 is a little bit higher than
when autonomous income is considered. These percentage points –around 5 and 10–
represent the fact that after monetary transfers, some individuals reach higher deciles. This is
present in the second decade but not so clearly in the first one. This could have happened
because of the expansion in coverage of the Social Protection System.
85
Figure 2- 6 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Autonomous Income
Figure 2- 7 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Monetary Income
Figure 2- 8 Relative PDF and Relative CDF years 1990 and 2000, Equivalent Total Income
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
86
Figure 2- 9 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Autonomous Income
Figure 2- 10 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Monetary Income
Figure 2- 11 Relative PDF and Relative CDF years 2000 and 2013, Equivalent Total Income
Source: Author’s elaboration from CASEN surveys: 2000, 2013. Ministerio de Desarrollo Social.
87
The proportion of people facing vulnerability in 1990 has decreased in 2013 and that this
reduction was more pronounced between the years 2000 and 2013 because of a wider action of
the government through monetary transfers. In order to observe how these changes happened
throughout the years, the information can be even more disaggregated by every year with
information.
The baseline year 1990 is compared with every year in which the survey was applied
identifying where the major changes were concentrated. The following two figures show
graphically how the income distributions – autonomous income in Figure 2-12 and monetary
income in Figure 2-13 – have changed compared with 1990. For the baseline year, 1990, the
relative density has been set at 1 by design.
In Figure 2-12, in general terms, it can be seen that the changes in the income
distributions are marked by a general upwards shift in income in every year compared with
1990. The density of individuals in the top deciles in 1990 increased during the period, while
the density of individuals in the bottom deciles in 1990 fell.
The increase in the upper deciles was considerably bigger than the decrease in the lower
deciles, showing a polarization of incomes. The density of individuals in the top decile in 2013
was more than 2.5 times than in 1990, while the density of individuals in the bottom decile was
almost 40% of the original in 1990. However, the behaviour of the first decile is not the same
as the following deciles up to the 6th decile. The reduction of the population in the first decile
in 1990 over the years is lower than the reduction in the deciles that represent vulnerability.
There is a group of the population that is stuck in the lowest decile and their autonomous
income is not growing enough for them to leave their 1990 level of income behind.
There was a reduction of the number of individuals across all the deciles that represent
vulnerability. Although the relative density in the 6th decile in 1990 was a little bit higher than
the one in 2000, since this year, it started to decrease. From the 7th decile on, the percentage of
individuals is always higher than in 1990, increasing sharply in the highest decile of the
distribution.
88
Figure 2- 12 Relative PDF every year compared with the base year 1990, Equivalent Autonomous Income
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
The higher concentration in the 1st decile of equivalent autonomous income in 1990 is
eliminated when monetary income is considered. In Figure 2-13, it can be observed that the
percentage of the population that remains in the 1st decile was decreasing throughout the years
up to a level of 18% in 2013 compared with 1990. This means that monetary transfers from
government to households in the 1st decile are successfully increasing their income and helping
them to leave the first poverty decile behind. However, 18% of population in 2013 still earns
incomes equivalent to the first decile in 1990.
Monetary transfers have thus contributed to the reduction in the number of individuals in
the vulnerability area. However, this reduction is more pronounced in the first two deciles over
the years. Their contribution in the 3rd, 4th, and 5th decile started to be noticeable from the year
1996 onwards. But it is from the year 2009 on that the monetary transfers have made a big
difference in the 3rd and 4th deciles, reducing the population in vulnerability. However, the
effect of the action of the government on the 5th decile is less than in lower deciles. Actually,
1
3
5
79
0
0,5
1
1,5
2
2,5
3
1 2 3 4 5 6 7 8 9 10
1990
1992
1994
1996
1998
2000
2003
2006
2009
2011
2013
89
the 6th decile contained more people after the monetary transfers. This can reflect the
movement of people from lower deciles up to the 6th decile and onwards.
Figure 2- 13 Relative PDF every year compared with the base year 1990, Equivalent Monetary Income
Source: Own elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social.
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
The evidence presented shows that equivalised incomes have been moving up in the
income distribution. People have moved away from the levels of poverty and vulnerability in
the 1990 deciles. The monetary transfers from the government have played a role in this
change but the main engine was the increase in income that households generate by
themselves. The following decomposition between location and shape effects disentangle if
this positive effect has been experienced equally by deciles.
1
4
7
10
0
0,5
1
1,5
2
2,5
3
1 2 3 4 5 6 7 8 9 10
1990
1992
1994
1996
1998
2000
2003
2006
2009
2011
2013
90
2.7.2 Location and Shape Effects
In order to have a more detailed picture regarding the income distribution movements,
the relative distribution can be decomposed into location and shape effects. As it was
presented in Section 2.6, location effects represent changes in position of the distributions
attributed to changes in the median of the income distribution. The median shift is understood
as the pattern that the relative distribution would have displayed if there had been no change in
distributional shape, but only a location shift of the distribution. For the other side, shape
effects reflect changes in the form of the income distribution that can be related with changes
in variance, asymmetry, or other distributional characteristics. The shape effect represents the
relative distribution net of the median influence.
The relative impact of location and shape shifts to the overall relative density of each
period can be seen in the following figures. Again, they are displayed for each income type
considered – autonomous, monetary, and total – and for three time spans, 1990-2013, 1990-
2000, and 2000-2013. Each figure has two graphs in a row. The first shows the effect due to
the median shift and the second displays the shape effect.
Figure 2- 14 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Autonomous Income
(a) Location Effect (b) Shape Effect
Source: Authors’ elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social.
91
Figure 2- 15 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Monetary Income (a) Location Effect (b) Shape Effect
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
Figure 2- 16 Relative Density 1990 and 2013, Location and Shape Effect, Equivalent Total Income
(a) Location Effect (b) Shape Effect
Source: Author’s elaboration from CASEN surveys: 1990, 2013. Ministerio de Desarrollo Social
In Figure 2-14, for all the periods under analysis, it can be observed that the location
effect reduces the share of individuals in the bottom deciles and increases that in the higher
ones. This makes sense considering that the median shift was positive in this period. The
median upshift in autonomous income between 1990 and 2013 was a dominant factor in the
total relative density observed. However, there was also an important polarization trend that
was not evident in the overall relative density figure. The shape effect shows a prominent
increase in the fraction of individuals in the poorest decile of the distribution, an important
92
decline of the mass between the 2nd and the 8th decile and an increase in the higher two deciles
of the distribution. This suggests that while the great majority of individuals experienced
growth in their income during this period, the poorest fraction of them was already falling
behind. This happens mainly in the 1st decile in which the relative growth is considerable. On
the contrary, the higher two deciles of the distribution increased, contributing to the
polarization.
When autonomous income is considered, as in the case of relative densities, the location
effect and shape effect are very similar between decades. The increase in the median of the
autonomous income was present in both decades. However, the change in the shape of the
distribution forces a higher proportion of individuals into the lower deciles, mainly into the 1st
one. Here, there is a small difference between decades; between the years 1990-2000, the
increase in the lowest decile was a little bit bigger than in the period 2000-2013, indicating that
the first decade was even less generous with the most vulnerable of the population. At the
same time, the relative increase of the two higher deciles was even greater during the first
decade, 1990-2000.
It can be observed that monetary transfers from the government do not have a big impact
on reducing the polarization observed. They have a small impact on the median effect and
slightly reduce the proportion of individuals in the lowest decile in the shape effect. This
means that even when monetary transfers have the effect of reducing the population in
vulnerability areas, they are not enough to equalize the increase in autonomous income of the
rest of the population.
93
Figure 2- 17 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Autonomous Income (a) Location Effect (b) Shape Effect
Figure 2- 18 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Monetary Income (a) Location Effect (b) Shape Effect
Figure 2- 19 Relative Density 1990 and 2000, Location and Shape Effect, Equivalent Total Income (a) Location Effect (b) Shape Effect
94
Figure 2- 20 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Autonomous Income (a) Location Effect (b) Shape Effect
Figure 2- 21 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Monetary Income (a) Location Effect (b) Shape Effect
Figure 2- 22 Relative Density 2000 and 2013, Location and Shape Effect, Equivalent Total Income (a) Location Effect (b) Shape Effect
95
2.7.3 The Polarization Index
The polarization index helps quantify, and to corroborate, the polarization that was
observed in the previous graphs. This index can be used to keep track of changes in the shape
of the income distribution across the whole 1990-2013 period. It measures the magnitude and
direction of differences between distributions in each successive year with 1990 as the
reference year. It is very useful in a context where polarization could be happening in the
vulnerability area of the distribution.
As was detailed in Section 2.6, the polarization index and its decomposition are method
for measuring the relative density in the centre or tails of a distribution. Figure 2-23 displays
the set of three indices calculating the graphs (a), (b), and (c) using the equivalent household
autonomous income, and Figure 2-24 the equivalent household monetary income. The median
relative polarization index (MRP) varies between - 1 and 1. When this index is zero, it means
there is no difference in the distributional shape. When there is a convergence toward the
centre of the distribution, the index is negative, which means less polarization. In the opposite
direction, a positive value represents more polarization and an increase in the tails of the
distribution.
The MRP is decomposed to compare the contribution of each section of the distribution
to the overall polarization. In this case, the overall polarization in the contributions made by
components above and below the median of g(r) is decomposed. The Lower Relative
Polarization index (LRP) reflects the contribution to the median index of the relative
distribution below its median, and the Upper Relative Polarization index (URP), that from
above its median.
The properties of these indices are very similar to the MRP. They vary between -1 and 1
values, more polarization being represented by positive values (increases in the tail of the
distribution), while less polarization is reflected by negative values (convergences towards the
centre of the distribution). When the shape component of the relative distribution is
unchanging below the median, then the lower index is zero. However, when it is above the
median, then the upper index is zero.
96
Figures 2-23 and 2-24 show the evolution of the relative polarization indexes from 1990,
the first with autonomous income and the second with monetary income. It can be observed
that the polarization has been increasing every year compared with the reference year, 1990.
The indexes are positive, indicating more polarization in both tails of the distribution.
It is clear from the figures that the income distribution has polarized during this period
and this polarization came from both tails of the income distribution. However, the lower tail
of the distribution contributes more importantly to the polarization of incomes than the upper
tail of it. It is observed from the fact that the Lower Index (LRP) is always more positive than
the Upper Index (URP), indicating more polarization in the lower than in the upper tail. This
was observed through the shape effect identified in section 2.7.2, when it was appreciated that
the lowest deciles of the distribution – mainly the lowest one – were left behind by the median
increase of the autonomous income per capita.
The monetary transfers contribute to reduce the polarization index MRP, and the LRP
and URP. Their main contribution is reducing polarization in the lower tail, and its effects have
increased throughout the years. Since the year 1996, the polarization index MRP has been
lower after monetary transfers have been received by households. However, it is from 2009
that this reduction is more than 1%. This can be interpreted in terms of a proportional shift of
observations in the distribution from less central values to more central values. For example, in
2009 the MRP is 0.01, meaning a 1% population shift from the upper and lower quartiles to
the centre of the distribution.
The contribution of monetary transfers to less polarization mainly came from the
population shift from the lower quartiles to the centre of the distribution. The LRP in 2013 is
0.17 and the URP is 0.007. This means that within the total 1.2% population movement to the
centre of the distribution between 1990 and 2013, 1.7% is from the lower quartiles and 0.7% is
from the upper quartiles of the income distribution. However, as was observed before, the
contribution of monetary transfers to increasing income in the lower deciles is not enough to
equalize the increase in autonomous income in all the rest of deciles. In this case, they are not
enough to eliminate the polarization of income distribution in both tails.
97
Figure 2- 23 Relative Polarization Indices, Equivalent Autonomous Income
Source: Author’s elaboration from CASEN 1990, 1992, 1994, 1996, 1998, 2000, 2003, 2006. 2009, and 2013, Ministry of Social Development.
Figure 2- 24 Relative Polarization Indices, Equivalent Monetary Income
Source: Author’s elaboration from CASEN 1990, 1992, 1994, 1996, 1998, 2000, 2003, 2006. 2009, and 2013, Ministry of Social Development.
The concern about income polarization came from the theory that polarization is linked to
the source of social tension (Esteban & Ray, 1994; J. E. Foster & Wolfson, 2010). Esteban &
Ray (1994) developed an alienation-identification framework that characterizes polarization
0
0,1
0,2
0,3
0,4
0,5
0,6
1990 1992 1994 1996 1998 2000 2003 2006 2009 2013
Median Index Lower Index Upper Index
0
0,1
0,2
0,3
0,4
0,5
0,6
1990 1992 1994 1996 1998 2000 2003 2006 2009 2011 2013
Median Index Lower Index Upper Index
98
from three main elements: group size, identification and alienation. The polarization of a
population happens when people who belong to a group that share an attribute–i.e income,
religion, race- feel identification with members of their group and alienation from other groups
with different attributes. Groups of significant size with different attributes may feel
identification with their group and alienation from each other. The authors say that these three
elements produce antagonism among people and can lead to social tension. In this study, a
greater distance between incomes in the upper and lower tail of the distribution can be
interpreted as an increase in alienation. At the same time, the fact that the lower decile has
been left behind can increase the self-identification of the group of people in poverty. The fact
that the income growth has benefited a proportion of the population more than the rest is a
potential source of social tension.
2.7.4 Decomposition by socio-demographic characteristics
This section presents the results of applying the covariate adjustment technique of the
relative distribution method explained in Section 2.6. It allows the impacts of changes in the
population composition of covariates to be distinguished from changes in the covariate-
response relationship. In other words, it tries to identify how some covariates have affected the
income distribution through changes in the covariates’ composition or through their impact
over income over time.
The covariates considered describe the household. Some covariates analyzed correspond
to characteristics of the heads of household such as, current work activity; age; and length of
school education. Other groups of covariates reflect characteristics of the household such as,
household with children younger than 6 years; household with children younger than 18 years;
household in the central region of the country; urban or rural household. Table 2-2 shows the
covariates considered in the analysis, following the work of Clementi and Schettino (2015) who
also used the Relative Distribution Method to analyze income distribution changes in Brazil.
Table 2-2 summarizes the population share in each covariate category and the median,
standard deviation and median of autonomous, monetary and total income by categories of the
covariates. The variables are presented for the years 1990 and 2013.
99
An increase in mean and median equivalent incomes was experienced by all the subgroups
during this period. Household heads are more educated and older in 2013 than 1990. The
proportion of households with a female head increased during this period. The proportion of
households with children fell and with older persons increased between 1990 and 2013. This
shows that the age composition of households is changing. Households have older heads,
fewer children and more elderly members. Occupation status, occupation category and the
contract status do not show a considerable change between the two years. People are working
more as employed workers and less as self-employed and a higher proportion has a job
contract in 2013 than 1990.
The manner in which these changes in covariates have affected income distribution
movement is explored through the covariate adjustment presented in the flowing figures.
Table 2- 2 Covariates and Equivalent autonomous income in 1990 and 2013
1990 2013
Population Share
Equivalent Autonomous Income
Population Share
Equivalent Autonomous Income
Mean Standard Deviation
Median
Mean Standard Deviation
Median
Household Head's education
Uneducated and less than 1 year 6.1% 138,133 172,767 105,029 2.6% 239,230 214,571 190,919
1-7 years 37.5% 165,102 253,267 117,943 21.6% 284,186 287,465 222,110
8-11 years 24.6% 190,683 326,584 118,954 24.3% 329,472 338,800 253,884
12 years 15.1% 321,917 595,361 188,919 27.8% 424,824 586,504 306,462
>12 years 16.6% 547,454 704,122 328,622 23.8% 1,001,725 1,249,179 631,583
Household location
Rural 17.0% 193,578 484,962 102,968 12.7% 322,408 601,062 209,863
Urban 83.0% 269,959 448,610 152,185 87.3% 530,319 789,019 328,455
Household region
North 21.5% 243,585 427,030 142,876 21.4% 488,987 663,170 328,076
Metropolitan Region 39.7% 305,060 456,902 171,335 40.6% 635,531 965,898 373,774
South 38.8% 215,116 465,643 117,501 38.0% 371,491 531,589 247,337
Household with young children
At least one children younger than 6 years 46.0% 215,204 361,508 118,903 32.5% 429,575 565,359 286,497
Without children younger than 6 years 54.0% 292,498 520,362 163,891 67.6% 539,485 849,676 322,594
Household with children At least one children younger than 18 years 79.9% 228,174 369,719 129,771 64.6% 448,895 629,168 291,160
Without children younger than 18 years 20.1% 371,529 688,956 200,725 35.4% 604,034 969,600 352,526
Household with older persons
At least one person 65 years or more 19.7% 272,276 541,304 159,202 26.7% 437,225 756,141 285,530
Without individuals 65 years or more 80.3% 253,203 432,310 137,879 73.3% 528,140 774,598 318,928
101
Household Head 's gender
Female 16.5% 195,247 255,985 124,719 34.3% 392,646 562,491 253,884
Male 83.5% 269,152 484,838 144,548 65.7% 561,835 853,891 342,500
Household Head 's age
10-24 years 2.7% 145,381 272,451 93,778 2.0% 368,937 491,086 232,678
25-44 years 44.5% 223,676 367,527 117,065 33.1% 520,860 761,350 302,243
45-64 years 39.1% 296,958 501,503 172,456 45.0% 548,346 862,447 338,384
65 years or more 13.7% 273,133 579,006 153,848 19.9% 387,856 541,633 268,941 Household Head 's occupational status
employed 72.9% 284,951 512,104 150,434 71.7% 588,440 862,667 357,573
unemployed 3.9% 93,974 148,433 59,451 2.6% 229,796 413,226 140,000
Inactive 23.3% 196,452 240,559 134,200 25.7% 295,717 384,241 218,517 Household Head 's occupational category
Unemployed 3.9% 93,974 148,433 59,451 2.6% 229,796 413,226 140,000
Inactive 23.3% 196,452 240,559 134,200 25.7% 295,717 384,241 218,517
Employer 3.0% 1,203,615 1,507,450 750,431 2.1% 1,803,978 2,333,660 1,101,503
Self-employed 20.6% 294,414 483,903 179,088 15.7% 629,171 882,843 400,505
Employee/worker 46.9% 230,272 322,495 133,824 50.8% 536,533 708,331 337,359
Domestic service 1.3% 106,059 101,434 85,752 2.2% 298,020 316,294 223,660
Unpaid family member 0.0% 268,818 199,902 285,746 0.1% 384,490 436,792 250,000
Armed Forces 1.1% 189,579 157,410 152,072 0.7% 673,909 589,008 504,069
Household Head 's contract
Without contract 13.2% 150,006 272,613 91,965 10.6% 555,767 721,075 354,210
With contract 86.8% 237,127 320,025 141,830 89.4% 299,991 353,510 210,815
Source: Author’s elaboration from CASEN 1990 and 2013. Incomes are expressed in 2013’s values.
Figure 2-25 shows the composition effect for autonomous income between 1990 and
2013 (total income is in Appendix 2.10.2). It represents the changes that would have occurred
in the 1990 to 2013 relative distribution of Chilean households if only the covariate
composition of the median-adjusted 1990 reference population had changed. The fact that the
majority of the figures are very close to a uniform distribution suggests that the changes in the
composition of covariates are not so influential on the overall changes in income distribution
over time. However, some covariates have an impact.
The education variable appears as an exception suggesting that the improvement in
education has had an impact in the movements of equivalent income to the upper deciles of
the income distribution. Household heads with more education in 2013 than 1990 contributes
to an increase in the population from the 6th decile on. The relative density is higher than 1
from this decile on, which increases to around 1.3 in the top 10th decile. This means that the
higher education levels that household heads reached in 2013 had increased by 30 per cent the
population in the top decile compared to 1990. Higher educational levels decreased the
population living in vulnerability deciles.
The decrease in the proportion of children in households shows a slight increase in
population in the upper deciles and a decrease in the lower deciles. Its effect is not as
important as the education variables but still shows that part of the movement to the upper
deciles of income distribution is explained by the smaller proportion of children at home. The
equivalent incomes reach higher deciles in 2013 because there are fewer children –hence fewer
inhabitants- in the households. This suggests that a tendency towards smaller households has
contributed to the movement out of the deciles of poverty and vulnerability of 1990.
Exactly the opposite happens with the increase in proportion of female household heads
and older household heads. These changes have slightly increased the proportion of people in
the first decile and reduced the proportion of people in the top decile. Both covariates are then
associated with higher vulnerability.
The slight increases and decreases of these covariates, although they are associated with
some changes in the income distribution, are far from explaining all the changes and
polarization of it.
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Figure 2- 25 Covariates composition effect, Equivalent Autonomous Income
HH Education H Location H Region
H with young children H with children H with older
HH gender HH age HH occup
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social.
104
Figure 2- 26 Covariate-adjusted relative density of income, Equivalent Autonomous Income
HH Education H Location H Region
H with young children H with children H with older
person
HH gender HH age HH occup
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social
Figures 2-25 and 2-26 depict the covariate-adjusted relative density of autonomous
income. What is called the residual effect holds the population covariates composition constant
and hence isolates changes of income distribution generated by changes in the return to a
105
particular covariate over time. The fact that the compositional effect is small for the majority
of the covariates means that the covariate-adjusted distributions are not much different from
the original relative distribution in Figure 2-3. This happens with the majority of the covariates
with the exception of the covariates that showed a small but positive composition effect.
In the case of level of education of the head of household, it can be observed that the
increase in the proportion of population in the top deciles in 2013 would have been lower if
the covariates had not changed between the two periods. In addition, the residual effect shows
that household head education would have moved more people to the 7th decile in 2013 than
actually moved to this decile –Figure 2-3. This indicates that education has contributed to the
reduction of vulnerability through changes in its composition –higher levels of education- and
also through its positive impacts on income.
The covariate ‘households with children’ also increased slightly the proportion of the
population in the 7th decile not as a consequence of the change in the covariate composition
but through their impact on income. This suggests that the higher proportion of people in the
upper deciles in 2013, compared to 1990, is not only affected by the reduction of the
proportion of children but also by its relation to income. It is a residual effect that indicates
that the drop in the number of children is a variable that has produced more income in 2013
than in 1990.
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2.8 Conclusions
Chile does not have a measure of vulnerability to poverty itself, but it has in a sense
embraced the concept of vulnerability. The targeting tool used to select the beneficiaries of
social programmes of the government of Chile tried to incorporate vulnerability through
different mechanisms. However, this tool remains in between upholding a vulnerability
approach and a poverty one. What extends this approach to include vulnerability is the fact of
the widening coverage of the Social Protection System. Some social programmes are targeted
to the 40% most vulnerable of the population, and others to the 60% most vulnerable.
This increase in coverage was adopted in order to address the economic insecurities faced
by the population. At the same time as poverty levels have reduced considerably during the last
two decades or so, the population’s perception of vulnerability has been rising. Studies have
shown that the growing population out of poverty faces significant risks and uncertainties
making them vulnerable to poverty.
The non-parametric Relative Distribution Method helped generate insights into the deciles
of income distribution constituting the most vulnerable groups in the population. The years
between 1990 and 2013 were characterized by an average upgrading of autonomous incomes.
Equivalent autonomous income increased throughout the period, generating a higher
concentration of individuals in the higher 1990 income deciles in the year 2013 and a lower
proportion in the lowest deciles. Under the 6th decile, which can be interpreted as the 60%
most vulnerable of the population in the year 1990, the proportion of individuals had
decreased by the year 2013. This means that, on average, individuals have incomes ensuring
more economic security. The proportion of people in the 8th, 9th, and 10th deciles of 1990
increased in 2013. More than twice as many recent incomes fell into the higher decile than in
the original cohort. Only the 7th decile shows the same proportion of individuals both years.
The monetary transfers from the government to people make the proportion of
individuals in vulnerability lower in 2013 than in 1990. The targeting of monetary transfers
from the government has not only reduced poverty, something which was already known, but
it has also reduced the population in vulnerability. This means that the action of the
government’s social protection system has contributed more to a reduction in the population
107
living in vulnerability than the contribution of the increase in autonomous income of the
households.
The expansion of the Social Protection System since the year 2000 onwards reduced the
population in vulnerability more than in the first decade. The reduction of the population
living in 2013 with incomes classifying them as vulnerable in 2000 was more important than
the decrease of population in vulnerability in 2000 compared with the 1990 vulnerability
deciles. The effect of the action of the government’s subsidies was concentrated mainly in the
first two deciles of the distribution in the first decade and the first three in the second period.
The shift to the right of the income distribution – the location effect – reduced the share
of individuals in the bottom deciles and increased it in the higher ones. The median upward
shift in autonomous income between 1990 and 2013 was the dominant factor in the total
relative density observed. However, there was also an important polarization trend that was
not evident in the overall relative density figure. The shape effect shows a prominent increase
in the fraction of individuals in the poorest decile of the distribution, an important decline in
the mass between the 2nd and the 8th decile and an increase in the higher two deciles of the
distribution. This suggests that, while the great majority of individuals experienced growth in
their income during this period, the poorest fraction of them was already falling behind. This
happens mainly in the 1st decile in which the relative growth is considerable. On the contrary,
the higher two deciles of the distribution increased, contributing to the polarization.
Although the income polarization came from both tails of the income distribution, the
lower tail of the distribution contributes more importantly to the polarization of incomes than
the upper tail. This is observed from the fact that the Lower Index (LRP) is always more
positive than the Upper Index (URP), indicating more polarization in the lower than in the
upper tail.
It is observed that the monetary transfers contribute to a reduction in the polarization
index MRP, and the LRP and URP. Its main contribution is reducing polarization in the lower
tail, and this effect increased throughout the years. This contribution to less polarization by
monetary transfers mainly came from the population shift from the lower quartiles to the
centre of the distribution. However, as was observed before, the contribution of monetary
transfers to increasing income in the lower deciles is not enough to equalize the increase of
108
autonomous income in all the rest of the deciles. In this case, monetary transfers are not
enough to eliminate the polarization of income distribution in both tails.
One of the limitations of this approach is the impossibility of observing in detail the
movements between deciles. On average, people are rising in the distribution of income.
However, it is not possible to identify where the deciles move from. The availability of the
panel data will allow these movements to be analyzed in more detail, allowing the identification
of what decile individuals move from. Paper II of this research explores panel data to estimate
individual vulnerability and to characterize further the group of people who are vulnerable to
poverty.
109
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2.10 Annexes
2.10.1 La Capacidad Generadora de Ingresos (The income generating
capacity)
The capacity to generate income (CGI) measures the labour capacities of individuals that
can work38. The CGI is calculated based on the observable characteristics of each individual,
such as, years of schooling, work experience, kind of work contract, and others. It is estimated
separately by gender and work status 39 . There also included in the CGI’s estimation are
environmental characteristics in order to reflect the territorial risks40 (Larrañaga et al., 2010,
2014).
38 It excludes students, mothers with small children, people with disabilities, and other groups with difficulties to participate in the labour market. 39 Dependent workers, independent workers, and for inactive people. 40 Such as, level of unemployment of the county and other local features.
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2.10.2 The covariate-adjusted relative density of total income
Figure 2- 27 Covariates composition effect, Equivalent Total Income
HH Education H Location H Region
H with young children H with children H with older
HH gender HH age HH occup
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social.
116
Figure 2- 28 Covariate-adjusted relative density of income, Equivalent Total Income
HH Education H Location H Region
H with young children H with children H with older
HH gender HH age HH occup
Source: Author’s elaboration from CASEN surveys: 1990, 2000, 2013. Ministerio de Desarrollo Social.
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3 Paper II: Vulnerability to poverty in Chile: the
differences between current poverty and the risk of
being in poverty in the future
Abstract
Latin American countries have considerably reduced their levels of poverty during the last
two decades. Simultaneously, the concern about the risk of these groups that are currently in
better conditions returning to poverty has increased. The eradication of poverty in the
continent needs not only to lift people currently in deprivation out of poverty, but also to
prevent new people from falling into poverty. Protection should also go to people vulnerable
to being in poverty in the future. However, the information regarding people living in
vulnerability to poverty is scarce. This study addresses the gaps in understanding and
measuring vulnerability to poverty. Specifically, this study characterizes the group of people
living in vulnerability to poverty and compares them to people living in poverty and those who
belong to the middle class. The context of empirical research is Chile, a high-income country
that has significantly reduced its poverty levels during the last decades. The findings show that
people living in vulnerability to poverty are a different group than those living in poverty and
those who belong to the middle class. Substantial and statistically significant differences in
several socio-demographic characteristics between the vulnerable group and the other two
income groups emphasize the importance of distinguishing between these groups. Therefore,
this research contributes both to the understanding of vulnerability and to the design of
strategies against poverty.
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3.1 Introduction
The risk of being in poverty in the future, which is called vulnerability to poverty, has been
a matter of concern for academics and policy makers for more than a decade. While countries
have been improving their living standards and reducing their poverty levels, vulnerability to
poverty has emerged as a priority for policy makers. Rich and poor countries alike want to
protect their citizens in order to avoid episodes of poverty and increase their levels of well-
being.
In general terms, vulnerability to poverty can be defined as the probability that individuals
or households will find themselves in poverty in the future (Barrientos, 2013). The importance
of measuring vulnerability to poverty is the identification of the group of people who are not
currently in poverty but have a high probability of falling into poverty in the future (Wan &
Zhang, 2008). Appropriate policies to prevent them from falling into poverty can be design
from their identification and characterization. As Chaudhuri et al. (2002) state, what really
matters for forward-looking anti-poverty interventions is vulnerability to poverty.
While it is well known that a prospective approach to poverty is necessary to prevent and
eradicate poverty, there is no agreement on how to identify people in vulnerability neither on
what features characterize them. This paper attempts to contribute to narrowing the
knowledge gap in the understanding of vulnerability to poverty and its differences with respect
to poverty and middle class. This study aims to identify and characterize the group of people in
vulnerability to poverty based on their probability of being in poverty. The specific objectives
are to identify the group of people living in vulnerability to poverty; characterize them by their
socio-demographic characteristics and compare them with people in poverty and the middle
class.
In addition, this research contributes to answering whether people in situations of
vulnerability to poverty need different social protection programs than people living in
poverty. The results can contribute to the discussion on public policies to protect vulnerable
people from falling into poverty.
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The analysis in this chapter attempts to provide a detailed description on the characteristics
of households living in vulnerability to poverty. It examines whether people living in poverty,
vulnerability and the middle class are different with respect to their socio-demographic
characteristics and if they are exposed differently to shocks. This document aims to find
answers to the following research questions:
• What characterizes people in vulnerability to poverty?
• Are the socio-economic characteristics of people living in poverty and people
living in vulnerability different?
• Are the socio-economic characteristics of people living in poverty and people
living in the middle class different?
• Do these differences justify differentiated protection for these groups?
In order to identify the group of people living in vulnerability to poverty and compare
them with the other two income groups, the approach proposed by López-Calva & Ortiz-
Juárez (2014) is used. They propose a three-stage methodology that allows obtaining an
individual predicted income associated with a probability of falling into poverty. This is a clear
advantage of this method because the income vulnerability threshold can be compared with
the poverty line; they are in the same language.
Chile is the case study of this research because it has an interesting set-up for studying
vulnerability. Chile is considered a successful case in Latin America of targeted public policies
designed to reduce poverty. For over 25 years, it has achieved successful economic growth
rates and witnessed an improvement in social indicators. Considering a per capita poverty line
of around 4.5 dollars a day, the poverty rate has decreased from 38.6% in 1990 to 7.8% in
2013, and extreme poverty from 13.0% to 2.5% during the same period of time41. Chile is the
country with the highest UNDP Human Development Index (HDI) in Latin America42, and it
41 Under a new methodology (higher poverty lines) that started to be applied in the year 2013, poverty levels
decreased from 29.1% in 2006 to 14.4% in 2013, and the reduction in extreme poverty was from 12.6% to 4.5%
between these years. 42 In 2013 the Human Development Index for Chile was 0.822 points.
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has one of the lowest poverty rates in the continent measured by ECLAC43. Today, Chile is a
high income country44 with one of the highest incomes per capita45 in Latin America46.
However, poverty remains dynamic even in the context of poverty reduction of Chile.
Neilson et al. (2008) using the same CASEN Panel Database that this study uses, show that
although poverty levels have been reduced in Chile, a high percentage of the population is
under the threat of being in poverty at some time. The poverty rate fell from 22% to 18%
between 1996 and 2001. However, poverty remains dynamic even in the context of poverty
reduction of Chile. Neilson et al. (2008) using the same CASEN Panel Database that this study
uses, show that although poverty levels have been reduced in Chile, a high percentage of the
population is under the threat of being in poverty at some time.
This study makes use of a panel version of the National Socio-economic Characterisation
Survey (Encuesta de Caracterización Económica Nacional, CASEN). This Panel follows a subsample
of 5,209 households -20,942 individuals- from four regions of the country (III, VI, VIII, and
the Metropolitan Region) in CASEN 1996 that were re-interviewed in 2001 and 2006. These
regions represent 60 per cent of the national population and of the GDP. This research
exploits the advantage of Panel Data to identify trajectories in and out of poverty in order to
identify the probability of falling into poverty. The moderate poverty income line established
by Chile since 2013 is used. The probability of falling into poverty in the next period is
estimated from characteristics in the initial period and changes between the two periods.
The findings of this study show a negative correlation between income and the probability
of falling into poverty. People with lower incomes in the initial year face, on average, a higher
probability of falling into poverty in the latest year than those with higher incomes. Those with
lower incomes have less availability of monetary and asset resources to overcome the adverse
shocks that may occur over the period. Reduced availability of resources makes people more
vulnerable to poverty in the future.
43 Chile is behind Argentina and Uruguay. Source: ECLAC 44 Chile is classified as High income country by the World Bank. High-income economies are those in which 2015 GNI per capita was $12,476 or more. Chile has a GNI per capita equal to $13,530 in 2016. Data source: World Bank national accounts data, and OECD National Accounts data files. https://data.worldbank.org. World Bank Open Data. 45 The GDP per capita PPP (current international $) for the year 2016 correspond to US$ 23,960 and US$13,793 in GDP per capita (current US$). Source: World Bank, World Development Indicators. 46 Chile in conjunction with Argentina and Mexico.
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The results also show that this inverse relationship between higher income and lower
probability of falling into poverty remains pronounced with incomes decreasing sharply up to a
20% probability of falling into poverty. Furthermore, the rate of decline of incomes is sharper
up to around the 10% degree of probability of falling into poverty. From that point onwards,
although incomes still decrease while the probability of falling into poverty increases, they do
so at a slower pace. This makes 10% and 20% of probability of falling into poverty natural
thresholds for identifying the group of people in vulnerability to poverty.
This study estimates a vulnerability income threshold for the probability of falling into
poverty equal to 10%. This threshold is almost 17% higher than the threshold obtained by
López-Calva & Ortiz-Juárez (2014). Although both of them are income thresholds associated
with a probability of falling into poverty equal to 10%, the threshold estimated by this research
uses the ‘new poverty line’ implemented in Chile since 2013. This new poverty line is 30%
higher than the US $4 PPP per day poverty line used by López-Calva & Ortiz-Juárez (2014)47.
As expected, the vulnerability threshold estimated by this research is higher than the estimated
by López-Calva & Ortiz-Juárez (2014) by 20%. These results corroborate the importance of
measuring vulnerability to poverty, as with poverty, considering the welfare standards of the
specific context. The vulnerability threshold obtained by this research is in harmony with the
current welfare measures used in Chile.
The proportion of people living in vulnerability to poverty is very sensitive to the
vulnerability threshold selected. The density of people around the income thresholds
associated with a 10% and 20% of probability of falling into poverty is very high making the
selection of the threshold a sensitive issue. The recommendation here is that the selection of
the threshold must be relevant to the specific context to operationalize the vulnerability to
poverty measurement. From an empirical point of view, the threshold of 10% of probability of
falling into poverty is more appropriate in the context of Chile. The use of the vulnerability
income threshold associated with this 10% probability of falling into poverty indicates that
19.2% of people live in vulnerability. This percentage plus the 38.8% of people in poverty is
very close to the 60% of the population that the State of Chile uses to identify the vulnerable.
47 To make the comparison poverty lines were expressed at 2005 values. That year was established the moderate poverty line in US $4 PPP per day by the World Bank.
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As a consequence, this percentage is considered as relevant in the Chilean case in order to
compare the group of people living in vulnerability with other income groups.
The comparison among groups shows that those in vulnerability to poverty are distinct in
many respects from both people in poverty and those who belong to middle class. It can be
said that people living in vulnerability are in between those living in poverty and the group in the
middle class. The socio-demographic characteristics and the propensity to suffer shocks of
people in vulnerability are getting closer to middle-class characteristics and getting far away
from poverty determinants. People in vulnerability have more resources to avoid deprivation
than those in poverty but not enough to be protected against the risk of being in poverty in the
future. They have more education, better household conditions and more qualified
occupations than households in poverty. They have similar household sizes to those in poverty
and bigger than middle class households. They are characterized by having more extended
families than households in poverty and the middle class and by having more single
households than those in poverty. They are in between households in poverty and those in the
middle class regarding the proportion of children and older people at home. They are in a
younger stage in the household life-cycle than middle class households but older than
households in poverty. They have the same proportion of female heads of households than
middle class households which is higher than those in households in poverty. The substantial
and statistically significant differences among the group in vulnerability and the other two
income groups stress the importance of making a distinction among these groups.
This research contributes to the literature in two important ways. First, it contributes to the
discussion on the measurement of vulnerability to poverty. It operationalizes the approach
proposed by López-Calva & Ortiz-Juárez (2014) to measure the middle class and applies it to
the measurement of vulnerable groups in a high income country such as Chile. It provides a
conceptualization and measurement of vulnerability to poverty. Second, from this
measurement, the group of people vulnerable to poverty is characterized and compared to the
group of people living in poverty and those belonging to the middle class. The comparison of
their socio-demographic characteristics brings the issue of different social programmes that are
required for people in vulnerability and people in poverty for poverty reduction strategies.
The paper is divided into 7 sections. Section 3.2 examines the importance of understanding
vulnerability to poverty and the different approaches to measuring it, providing a context to
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this understanding of vulnerability. In Section 3.3, the theoretical framework of the analysis is
presented. The following sections explain the data base used (Section 3.4) and the econometric
methodology used (Section 3.5). Section 3.6 presents the main results of the paper. The final
section draws out the main conclusions and a discussion of the policy implications of the
research.
3.2 Literature review: Poverty and vulnerability definitions,
measurements and differences
This section provides a brief review of the concepts of poverty and vulnerability to poverty
and their differences, and then outlines the motivations under their conceptualizations and
measurements.
3.2.1 What does poverty mean?
In general terms, poverty can be conceptualized as significant deficits in well-being which
are unacceptable in a given society (Barrientos, 2013). People in poverty are those at the
bottom of the distribution of well-being in a particular society. Usually, the poverty line is the
threshold in the distribution of well-being that divides those who are in poverty from those
who are not. This threshold can be defined in absolute or relative terms. In the case of
absolute poverty, shortfalls in well-being are measured with respect to a particular level of well-
being. The poverty line is a fixed value that represents a particular level of well-being. In
contrast, relative poverty defines people in poverty as those in the lower segments of the
distribution of well-being.
There are different viewpoints regarding the metric or informational basis of well-being.
From one angle, it has been defined as disposability of resources or their monetary equivalents.
In this case, a shortfall in well-being is understood as a scarcity control over resources or
income. Households or individuals are in poverty because they have low income or available
resources. An alternative option has been the understanding of well-being through a welfarist
approach. The metric of well-being under this approach is utility or, put simply, people’s
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happiness (Sen, 1987, 1995). Poverty is understood as low individual utility under this
perspective. Another alternative to conceptualizing well-being was proposed by Rawls (1971),
through which well-being should be measured through the ‘primary goods’ that contribute to
the realization of people's life plans. A shortfall in the ownership of, or access to, these primary
goods defines poverty. In the capability approach proposed by Sen (1987, 1995), poverty is the
lack of capabilities. These approaches use different informational bases of well-being. Despite
these differences, almost all of them define poverty by an income or consumption threshold.
Even multidimensional poverty, which is based on the capability approach, is highly correlated
with monetary measures of poverty (Sumner, 2016).
3.2.2 What does vulnerability to poverty mean?
There is no unique definition of vulnerability to poverty neither a unique way of measuring
it. Questions remain open regarding how to define it, measure it and how to calculate its
impacts on welfare. Different approaches have been proposed for the understanding and
measurement of vulnerability to poverty. All of them try to incorporate the idea that people
face diverse risks. All of us face risks that create uncertainty about our future. In the
vulnerability to poverty context, all of us have a probability of being in poverty in the future.
When this vulnerability to poverty is high it can also affect our well-being seriously. This
means that vulnerability to poverty matters when it affects people well-being. Vulnerability to
poverty is not important when the threat of poverty is low affecting people’s well-being little
or not at all (Dercon, 2005).
The growing interest in the analysis of vulnerability is related to its negative effect over
people’s welfare. Its incorporation into the design and implementation of Social Protection
Systems appears as a natural path. Not only because vulnerability to poverty affects people’s
welfare negatively but also because poverty levels can fall in the future through tackling
vulnerability to poverty in the present. It can be said that Social Protection targeted to people
in vulnerability to poverty has twofold benefits. On one side, by reducing levels of vulnerability
to poverty, people’s well-being can positively benefit. On the other side, reduction of the
probability of falling into poverty means a probable reduction in poverty levels in the future.
Social protection programmes seeking to tackle the determinants of vulnerability to poverty
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can contribute to the reduction in poverty. Also, the protection of vulnerable groups during
episodes of macro-economic contraction has been recognized as vital to poverty reduction in
developing countries (World Bank, 2001). The threat of being in poverty in the future can be
experienced by people who are currently in poverty and people who are out of poverty but
facing a high probability of being in poverty in the future. People in poverty today are the most
vulnerable group which is therefore the main focus of any Social Protection System.
As Chaudhuri et al. (2002) say vulnerability is a combination of two elements: poverty and
risk. Vulnerability to poverty today represents the risk of being in poverty in the future. It is
the probability of failing to reach the minimum level of income in the future. In other words,
vulnerability to poverty reflects the chances of being below the poverty line in the future.
People in vulnerability to poverty are those who face a high probability of being in deprivation
in forthcoming months or years.
Vulnerability to poverty can be affected by many factors and their interrelation. Among
them there is the environment that households are surrounded by, such as the macro-
economic, socio-political and physical contexts in which a household operates (Chaudhuri,
2003). Additionally, the human, physical and financial resources that a household possesses,
determine their behavioural responses (Chaudhuri, 2003).
As it has been presented throughout this work, interest in vulnerability to poverty has
increased during the last decade and with this, different approaches to understanding and
measuring it have been developed. The most influential approaches and measurements were
presented in Section 2.2.2 of this thesis. To see their authors, and the advantages and
disadvantages of each approach listed in detail, go to Table 3-14 in the Annex 3.9.1.
Poverty and vulnerability have been recognized as close but different concepts. Although
both of them are well-being measures, poverty is an ex-post measure and vulnerability is an ex-
ante measure of well-being. In general terms too, vulnerability to poverty refers to the threat of
experiencing poverty – being below the poverty threshold – at some point in the future.
The main distinction between poverty and vulnerability to poverty is the uncertainty about
the future as a consequence of risks that households and individuals confront. These risks were
initially identified by Chambers (1989), who distinguished between those external (shocks, risks
and stress) to the household and those internal – chiefly the condition of defencelessness to
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the external defined as the lack of means to cope with them without damaging loss. More
recently, these shocks have been categorized as aggregate shocks or idiosyncratic shocks
(Chaudhuri et al., 2002; Dercon, 2006; Hoddinott & Quisumbing, 2008). The first are those
that affect several people at the same time while the latter only affect one individual or
household. Among aggregate shocks are natural disasters (earthquakes, floods, etc.), bad
economic conditions (price increases, unemployment increases, recessions, etc.), or socio-
political instability (violence, war, etc.) (Hoddinott & Quisumbing, 2008). On the other hand,
idiosyncratic shocks are the unemployment, illness, or death of one member of the family,
among others.
3.3 Theoretical Framework: An empirical approach of
vulnerability to poverty
This section provides a theoretical framework for understanding and measuring
vulnerability to poverty and it shows how this conceptualization has been applied in the Latin
American context.
3.3.1 How can we operationalize the vulnerability to poverty concept?
Lopez-Calva and Ortiz-Juarez (2014) establish that the vulnerability to poverty is linked to
social class. In particular, the authors explored the link between vulnerability to poverty and
the middle class. Based on the work of Goldthorpe and McKnight (2004), they relate the
concepts of class and economic vulnerability. Goldthorpe and McKnight (2004) established
that class position affects the risk and opportunities that individuals face. Analyzing workers
and their contracts48, they found that economic insecurity49 was higher for contracts held by
non-skilled workers. These workers confronted higher risks of job loss and unemployment
48 Their analysis focuses in three categories of workers and their contracts: non-skilled workers with simple contracts, professional workers and managers with comprehensive and stable contracts, and intermediate workers with “mixed” forms of contracts. 49 as well as on three dimensions: economic security, economic stability and economic prospects
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than other classes. These results suggest the importance of class in defining economic
vulnerability.
Lopez-Calva and Ortiz-Juarez (2014) follow a vulnerability to poverty approach to identify
the middle class. They establish that the middle class “is defined by the level of income that
allows individuals to protect themselves from falling into poverty over time” (López-Calva &
Ortiz-Juarez, 2014, p. 26). In other words, the middle class is formed by people who face a low
probability of falling into poverty in the future. In contrast, those who face a high probability
of falling into poverty in the future but are not in poverty today, are defined as vulnerable.
Defining what is enough protection against poverty or, in other words, what is a low
probability of falling into poverty in the future is problematic. The selection of this threshold
that distinguishes between vulnerability to poverty and non-vulnerability to poverty is a
normative decision that must be taken by any vulnerability to poverty approach. Common
thresholds used are the vulnerability to poverty average a 50% probability of falling into
poverty, 75% probability of falling into poverty, the poverty rate as a threshold of vulnerability,
among others (Chaudhuri (2003); Gaiha & Imai (2008); Imai et al. (2010); Imai et al. (2011);
Bronfman (2014)).
Lopez-Calva and Ortiz-Juarez (2014) define the vulnerability to poverty threshold as 10%.
People who face a probability of falling into poverty higher than 10% are considered
vulnerable and those with a probability below this threshold belong to the middle class. The
authors justify the selection of this threshold from a theoretical and an empirical point of view.
They argue that the threshold is derived from a well-defined concept of economic security and
that this can be made operational for specific contexts. This opens the possibility of fixing a
different threshold of economic security depending on the context making the approach
flexible. In addition, they justified the selection of the 10% probability threshold as a lower
boundary for the middle class, based on empirical regularities found using synthetic panels,
indicating that 10% was the share of population falling into poverty in a fifteen-year period.
This research uses the same probability threshold of 10% and compares these results with
a higher probability threshold of 20%. The objective is to compare the sensitivity of the
estimations to the threshold. Later in the analysis will be presented the fact that the 10%
threshold fits better to a high income country as Chile.
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One of the advantages of the approach proposed by López-Calva & Ortiz-Juárez (2014) is
the translation from a probability threshold to an income threshold. Based on the ‘augmented’
poverty line concept proposed by Cafiero and Vakis (2006), the authors propose to find a
vulnerability income threshold that incorporates the risk that people face. The ‘augmented’
poverty line proposed by Cafiero and Vakis (2006) includes not only the minimum basket of
consumption and services but also basket of insurance against risks. The main objective of the
‘augmented’ poverty line is to incorporate the risk that people face in the poverty line. The aim
is to incorporate welfare loss as a consequence of vulnerability to poverty into the poverty
measurement and not only the income losses as a consequence of having been subject to
shocks.
This research using the approach of López-Calva & Ortiz-Juárez (2014) and the
‘augmented’ poverty line concept from Cafiero and Vakis (2006) estimates an income
vulnerability threshold for a high income country as Chile. The poverty line used by the
government of Chile was updated in 2013 in order to reflect the higher living standards and
current population needs. This ‘new poverty line’ is higher than the previous poverty line used.
This research uses the new poverty line to estimate vulnerability to poverty. The more
demanding standards for defining the minimum acceptable level of life entail a higher standard
of vulnerability to poverty. This research makes a contribution by estimating the vulnerability
to poverty threshold in connection with the new poverty line.
3.3.2 The rise of vulnerability to poverty in Latin American countries
Latin American countries have decreased their poverty levels considerably during the last
two decades. The percentage of the population living on less than US$2.5 per capita decreased
from 28.8% in 2000 to 15.9% in 2013 and that of those living on less than US$4 per capita
decreased from 46.3% to 29.7% between the same years (BID). This decline in poverty means
that 50 million people escaped poverty between 2000 and 2010 (Ferreira et al.).
One of the main questions that emerged after this reduction in poverty was about the
vulnerability of people who had left poverty behind. Were they vulnerable to being in poverty
again? Had any of them moved to the middle class? Were they secure or insecure
economically?
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In order to answer these questions, a great deal of effort has been put into the
identification of the threshold that distinguishes between those in vulnerability, the middle
class and upper middle class. The establishment of an income threshold that can be compared
with poverty thresholds has been pursued. In this context, the thresholds proposed by Lopez-
Calva and Ortiz-Juarez (2014) have gained relevance and popularity. They have been used by
international organizations such as the World Bank (Ferreira et al.) and the Inter-American
Development Bank (IDB) to identify the groups of people in poverty, vulnerability, the middle
class and upper middle class in Latin American countries and to analyze the mobility between
groups over the last few decades in the continent.
These works show that the reduction in poverty and inequality since 1990 in Latin
American countries has generated an increase of people in both the vulnerable and middle
class groups (Ferreira et al. and BID). BID show that the vulnerable group increased from
32% in 2000 to 38% in 2013, the middle class from 20% to 30%, while the upper middle class
remained stable at 2% throughout the period. They describe the heterogeneity among Latin
American countries regarding the proportion of their populations living in these income
groups. While some of them, such as Argentina, Chile and Uruguay, have poverty levels of
around 10%, other countries have more than 65% of their population living in poverty and
more than 50% living in extreme poverty. However, a common characteristic for all the
countries is the large proportion of people living in vulnerability, around 30%-40%. This
indicates that a large proportion of the population still faces a high probability of falling into
poverty.
Both Ferreira et al. and BID describe Chile as a country where poverty rates are lower and
the middle class is bigger than in other countries on the continent. Poverty rates in Chile were
reduced by more than half between 2000 and 2013 and the majority of its population belonged
to the middle and upper middle class in 2013. However, these numbers are obtained with
thresholds described which are low for the Chilean context. The new poverty line
implemented since 2013 changed the vulnerability threshold which is estimated by this
research.
Most effort hitherto has gone into the characterization of the middle class. This research
wants to contribute by providing evidence regarding the vulnerable groups. This group needs
policy attention because they need security in order to avoid future episodes of poverty.
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The only known study that estimated vulnerability to poverty in the region is the work of
Bergolo et al. (2010). The authors, using Chaudhuri’s methodology, estimated vulnerability to
poverty for 18 Latin American countries and carried out a validation exercise to assess their
capacity to predict poverty in two countries with panel data available: Chile and Argentina.
Their results indicate that vulnerability measures predict better aggregate poverty trends than at
the micro level. The authors conclude that vulnerability estimates through this methodology
should be complemented with additional information on aggregate trends and shocks in order
to target policy intervention (Bérgolo et al., 2010).
3.4 Data
This study makes use of the first 50 Panel version of the National Socio-economic
Characterisation Survey (Encuesta de Caracterización Económica Nacional, CASEN). The CASEN is
a cross-section survey which has been collected every two or three years since 1985 by the
Ministry of Social Development. It is nationally and regionally representative and also
representative of some counties. The CASEN is the main survey that analyzes the socio-
economic characteristics of the Chilean population. In order to support the analysis of the
same households throughout the years, the Ministry of Social Development has also conducted
a CASEN Panel Database since 1996. The CASEN Panel Database is carried out by the
Ministry of Social Development in conjunction with the Social Observatory at Universidad
Alberto Hurtado (OSUAH) and the Foundation of Poverty Reduction (FSP).
A subsample of 5,209 households -20,942 individuals- was selected from four regions of
the country (III, VI, VIII, and the Metropolitan Region) in CASEN 1996 who were re-
interviewed in 2001 and 2006. These regions represent 60 per cent of the national population
and of the GDP. The main advantage of the CASEN Panel Database is that provides
information from the same households over a long span of time -10 years. It follows the same
households including the new people that have been incorporated into the household. The
Annex N°3.9.2 describes the mechanisms to incorporate new members in the survey.
50 A second Panel from CASEN was collected in the years 2006, 2007, 2008 and 2009. The base line was taken from the cross section 2006 CASEN. As the attrition rate of this panel was very high, it is not much used for research.
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Longitudinal weights are used to avoid the possible bias in the estimations if the attrition
between waves is not random51. This research takes the individuals as the unit of analysis and
excludes from poverty estimates people who work in domestic service and who live in the
household in which they work52. In addition, in order to maintain the consistency of the Panel,
this research takes into consideration in the analysis individuals who were interviewed in all
three waves, 10,286 as shows Table 3-1.
Table 3-1 Original members of the survey interviewed both years and three (domestic servants excluded)
Source: Author’s elaboration from CASEN Panel Database 1996-2001-2006
The main advantage of longitudinal data is the possibility to follow the same household
throughout the time. This research exploits the advantage to identify trajectories in and out of
poverty in order to identify the probability of falling into poverty. Here, the probability of
falling into poverty in the next period is estimated from the current period and changes
between the two of them. The following section explains the method to estimate the
probability of falling into poverty used by this research.
3.5 Econometric Methodology
The estimation strategy and the econometric model used in this study follow the
vulnerability to poverty approach proposed by Lopez-Calva and Ortiz-Juarez (2014). They
51 To see the detail about the construction of the longitudinal weights in the Panel CASEN 1996-2001-2006 go to (Bendezú et al., 2007; PNUD, 2009). 52 They are not considered as a member of the household that contributes to the total income nor in the calculus of equivalised income. This group represent a small proportion of people. This practice is followed by the Ministry of Social Development in Chile in the estimation of poverty rates as well.
1996-2001 15,030
2001-2006 12,091
1996-2001-2006 10,286
CASEN 1996-2001-2006 Interviewed people both
years and three years without domestic service
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propose a three-stage methodology that would allow researchers to obtain an individual’s
predicted income associated with a probability of falling into poverty. First, poverty transition
matrices from panel data are constructed. Second, the probability of falling into poverty in the
next period is estimated from socio-demographic characteristics in the current period and
some changes along the period. Third, income estimation is done using the same covariates
used in the second step. After that, the probability and income estimations are combined,
obtaining the predicted income associated with a particular probability of falling into poverty.
From this three-stage method, the definition of the probability of falling into poverty as a
vulnerability threshold has an income threshold associated. This is a clear advantage of this
method because the income vulnerability threshold can be compared with the poverty line;
they are in the same language.
Section 3.5.1 explains in detail the three-stage approach used by this research. Then, in
section 3.5.2, an estimation strategy to compare the characteristics of people living in
vulnerability with people living in poverty and middle class is presented.
3.5.1 The three-stage methodology for approaching vulnerability to
poverty
This study follows the vulnerability to poverty approach proposed by López-Calva &
Ortiz-Juárez (2014) which define middle class in terms of economic security. The authors
define middle class as people who face a low probability, less than 10%, of being in poverty in
the future. This paper focuses on economic insecurity instead of economic security that
defines the middle class. It focuses on the rest of the population who face a probability of
falling into poverty in excess of 10% who are defined as vulnerable to poverty. This research
uses this vulnerability to poverty approach to characterize the group of people living in
vulnerability to poverty and to identify the difference between them and other income groups.
This approach follows a methodology that comprises three stages explained below.
3.5.1.1 First Stage
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In the first stage, poverty transition matrices are constructed using the Chilean poverty line
for each year. Transitions matrices are calculated for the two periods of comparison available:
between 1996 and 2001 and between 2001 and 2006. The comparison between 1996 and 2006
is not possible because the shocks variables required for the next stages are only available for
consecutive samples. From these poverty transitions, households are classified as ‘never poor’,
‘always in poverty’ ‘entering poverty’ or ‘out of poverty’. ‘Never poor’ means that households
were above the poverty line in both periods and ‘always poor’ when they were below the
poverty line in both periods. Households are classified as ‘out of poverty’ when they were in
poverty in the initial period but had got out of poverty in the final period and ‘entering
poverty’ in the situation of being out of poverty in the first period but having fallen into
poverty in the second period. Households are classified into one of these four categories and
this information is used in the second stage of the methodology.
The new poverty line implemented since 2013 is used to construct the poverty transition
matrices. The value of the poverty line in 2013 is expressed in 1996, 2001 and 2006 values to
carry out the analysis In Section 3.3.1 were presented the methodological changes that the new
poverty line incorporated. Table 3-2 shows the international poverty line and the old and new
national poverty lines expressed in 2005 Chilean Pesos, allowing them to be compared.
Table 3-2 National and International poverty lines expressed in 2005 Chilean Pesos
2001 2005 2006 2013 2001 2005 2006 2013
Extreme 23,155 - 23,102 40,998 761 - 760 1,348
Moderate 46,312 - 46,204 61,497 1,523 - 1,519 2,022
Extreme US $2.5 29,456 968
Moderate US $4 47,129 1,549
Vulnerability US $10 117,822 3,874
Middle Class US $50 589,110 19,368
Source: Author’s calculation based on CASEN Panel Database 1996-2001-2006 and World Bank PPP Private Consumption.
Poverty line values on 2001 and 2006 are obtained through the old methodology.
The 2013 poverty line came f rom the new methodology for poverty measurement.
The 2013 poverty line represents the poverty line in the average household size of 4.43 inhabitants.
Poverty lines depend on household size ranging f rom 96,112 for a single household to 48,170 per capita in a household with 10 members.
Per month Per day
Poverty line values expressed in 2005 Chilean Pesos
National
International
Poverty line
135
It can be seen that the new poverty line implemented in 2013 is much higher than the
poverty lines in 2001 and 2006. It is also much higher than the international moderate poverty
line. This is the first research which uses the new poverty line in order to estimate the
vulnerability line. López-Calva & Ortiz-Juárez (2014) used the international moderate poverty
line commonly used for Latin American countries of US$4 dollars PPP since the year 2005.
That poverty line was very close to the national poverty line in the years 2001 and 2006.
Considering that the changes in the methodology to measure poverty line were looking to
bring the measurement into line with the higher living standards and population needs of Chile
today, any measure of vulnerability to poverty must do the same. The more demanding
standards for defining the minimum acceptable level of life are in connection with a higher
standard of vulnerability to poverty. This research makes a contribution by estimating a
vulnerability to poverty threshold in connection with a higher poverty line.
3.5.1.2 Second Stage
In the second stage of the methodology, a logistic model53 (Aldrich & Nelson, 1984) is
estimated to analyze the correlates of the probability of falling into poverty between years. For
a household “i”, the estimated probability (pit) of falling into poverty between the initial (t0) and
final year (t1) is given by:
pit = E(poori,t+1|Xit) = F(Xitβit) (1)
Where poori,t+1 is the dependent variable taking the value of 1 if households are identified
as falling into poverty (‘always poor’ or ‘entering poverty’) and 0 otherwise; βit is a vector of
model parameters, and Xit is a vector of observable characteristics including labour market
resources, demographic indicators and shocks affecting the household. These variables
constitute the set of characteristics known to be related to poverty and the income generating
process.
53 Logit and Probit models usually return quite similar results and therefore the choice between them is not crucial. Thus, in this research a Logit model is used, as do López-Calva & Ortiz-Juárez (2014).
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Among the labour market resources in t0 the head’s education level and occupational status
are considered. The head’s education level is a proxy for the household’s human capital which
is grouped into seven categories: no formal education; incomplete and complete primary;
incomplete and complete secondary; and incomplete and complete tertiary education. ‘No
formal education’ means 0 years of education; ‘complete primary education’ means 8 years of
education and ‘incomplete’ less than that; ‘complete secondary education’ means 12 years of
education and ‘incomplete’ less than that; ‘completed’ or ‘incompleted tertiary education’ is
reported by the survey’s respondent. To record the occupational status of the head of the
household, a collapsed 6-class version of the Erikson, Goldthorpe, & Portocarero (1979)
(EGP) class classification is used. This collapsed 6-class version is commonly used to simplify
the Erikson et al. (1979) occupational classification. The household head’s occupation is
classified in one of the following classes: professional and managers, clerical workers, self-
employed, skilled manual workers, non-skilled manual workers, and agricultural workers54.
Regarding demographic indicators in t0, urban or rural residence, region of residence,
access to water and sanitation, floor material; and age, sex, and marital status of the household
head are considered. Marital status is gathered into three categories: married, cohabiting, or
single. The last category is made up of widowed, separated or never married people. The
household’s point in the life cycle can be measured by the age of the household head and by
the proportion of children and the proportion of older people living in the household. In this
context, the proportion of children under 15 years and the percentage of people over 64 years
living in the household are also considered.
The household access to basic services is also considered through two variables: unfinished
floors and absence of adequate sanitation system. The thresholds are taken from the
thresholds used by the Ministry of Social Development of Chile to define deprivation in these
dimensions. Unfinished floor is characterized by dirt floor, uncovered or covered by plastic or
wood and unfinished concrete floor55. A household does not have adequate sanitation when it
has a water closet –w.c- that is not connected to a sewer or septic tank. Any other solution
54 To see in detail the occupational classification: Erikson, Goldthorpe, & Portocarero (1979). 55 This is a more demanding threshold to describe the absence of a good quality floor. López-Calva & Ortiz-Juárez (2014) consider unfinished floor as a dirt floor, uncovered or covered by plastic or wood which is a less demanding threshold.
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such as a sanitary latrine, drawer over a well, drawer over a ditch or drawer connected to any
other system, absence of connection to any system, represents deprivation in sanitation56.
Changes and shocks that the household confronted between t0 and t1 are also used. They
include any change in the number of household members engaged in paid employment, and
any change in household size. The model also takes into account self-reported health shocks,
which required hospitalization, affecting the household between t0 and t1.
From this vector of observable characteristics the probability for each household of falling
into poverty in the final year (t1) is estimated.
3.5.1.3 Third Stage
The average characteristics associated with an estimated probability of being poor in the
next period are obtained. In particular, the average of the independent variables, Xjt , for j
ranges of estimated probabilities of falling into poverty are calculated. For instance, the average
characteristics of the group of people who have an estimated probability of falling into poverty
of between 4 and 6 percent are obtained, X4−6,0. In order to have enough information for the
group, ranges of 2% probabilities are considered (0%-2%, 2%-4%, 4%-6%,….., 98%-100%).
This provides information on the average characteristics of the group of individuals that face a
similar probability of falling into poverty.
In addition, the same independent variables Xit used in equation (1) are included to
estimate the following income equation:
lnYit = α: + Xitβit + εi (2)
56 A less demanding threshold is defined by no access to any system of sanitation. Again, this threshold is very low for Chilean standards.
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In equation (2) lnYit is the equivalised income in the logarithmic scale at the initial time
point. The resulting coefficients from equation (2) βt and the average of the independent
variables Xjt are used to solve the income equation, and therefore to obtain the predicted
income associated with each range of probability Yjt. This is the mechanism for combining the
estimated probability of falling into poverty with an estimated income57. Following the same
example, an estimated income is obtained associated with a probability of falling into poverty
between 4% and 6%. This is done for each range of estimated probability.
To estimate equation (2) Ordinary Least Squares (OLS) regression can be used. However,
these estimations can be affected by measurement errors, omitted variables and reverse
causation (Bourguignon, 2003). The use of robust standard errors accounts for
heteroscedasticity. The possibility to use random or fixed effects or first differences can
control for the presence of unobserved household-specific effects. The problem of using fixed
effects estimations here is that it eliminates time invariant characteristics. In this research,
many characteristics of the heads of households, such as education or sex, and household
characteristics, such as regional or urban/rural location, do not change between years. Fixed
effect estimation attenuates bias because of omitted variables but sacrifices the elimination of
invariant characteristics important for this research. In the case of this study, the use of fixed
effects estimation is problematic because of the presence of a lot of invariant characteristics
through time. The fact that the use of fixed effects estimations are associated with coefficients
biased to zero due to a low indication-to-noise ratio has already been documented in the
literature (Hauk & Wacziarg, 2009; Ravallion, 2015). Fixed effect estimations were conducted
by this study as robustness checks. However, they were discarded because the problem was
exposed. In the literature OLS estimations with robust standard errors are usually employed as
this study does.
The three-stage methodology allows us, at this point, to obtain the predicted income
associated with the probability of falling into poverty. The income threshold related to the
vulnerability threshold can be obtained. Considering the two thresholds of vulnerability
57 The justification for using predicted income comes from the fact that it has less volatility than observed income and it represents the income generation capacity of the household based on their assets.
139
adopted by this research -10 and 20 per cent- the equivalised income can be obtained that, on
average, people facing those probabilities earn.
As explained above, comparison can only be made between two consecutive measures.
The three- stage methodology is applied for the period 1996-2001 and for the period 2001-
2006 separately. This allows the results from both periods to be compared in order to validate
them.
3.5.2 How can the socio-demographic characteristics of people in
poverty, vulnerability, the middle class and upper middle class be
compared?
After the three-stage methodology is applied, a vulnerability income threshold is obtained.
This vulnerability line represents the predicted equivalised income associated with a probability
of falling into poverty equal to 10% or 20% depending on the probability threshold. This
threshold allows the identification of the group of people living in vulnerability to poverty.
Individuals with an equivalised income below the poverty line in the initial year are in
poverty irrespective of their probability of falling into poverty in the next period. A second
group is formed by individuals with equivalised income above the poverty line but below the
vulnerability threshold. People having equalized incomes below that threshold and above the
poverty line are considered vulnerable to being in poverty. A third group is formed by people
whose equalized income is between the vulnerability threshold and the middle-class threshold.
This last threshold is taken from Lopez-Calva and Ortiz-Juarez (2014) in which it is equivalised
to 50 dollars per day in 2005 PPP. This threshold can be used in this research because it is not
the objective here to estimate the upper threshold of the middle class. In addition, Lopez-
Calva and Ortiz-Juarez (2014) describe that the selection of this upper threshold has a small
impact on the size of the middle class. They describe that moving the upper threshold of the
middle class up or down in the income distribution has only a small impact on the percentage
of people in the middle class. In contrast, they explain that a variation in the lower-threshold
of the middle class, which is the vulnerability threshold here, has a larger impact on the size of
the middle class. The higher sensitivity of the vulnerability threshold requires it to be very
carefully estimated. As the authors state, making the vulnerability to poverty concept
140
operational requires the definition of thresholds that are relevant to the specific context
(Lopez-Calva and Ortiz-Juarez, 2014). This is what this research is doing by using the new
poverty line implemented in Chile since 2013.
The fourth and last group is formed by people having equalized incomes higher than 50
dollars per day in 2005 PPP. They are called the upper middle class.
After these groups have been identified, their socio-economic characteristics are compared.
The main objective is to characterize the group of people living in vulnerability to poverty and
to identify their similarities and differences with the rest of the groups. The representation of
the group of people living in vulnerability to poverty will emerge from this comparison. The t-
test is used in order to identify if the differences in covariates between the different groups are
statistically significant. Table 3-3 shows descriptive statistics for the covariates used in the
analysis. These covariates have been selected from similar studies in the literature (Bérgolo et
al., 2010; López-Calva & Ortiz-Juarez, 2014; Neilson et al., 2008). The variables for each year
under analysis and their mean and standard deviation are reported in Table 3-12 in the Annex
N°3.9.3
3.6 Results and discussion
The results obtained from the econometric strategy are presented in two sub-sections. The
first sub-section presents the results of the three-stage methodology carried out to estimate the
vulnerability threshold. Here, the results of each stage of the method are presented in detail:
the transition between poverty status throughout the years; the estimation of the probability of
falling into poverty and the predicted income associated with the probability of falling into
poverty. The vulnerability income thresholds associated with both a 10% and a 20%
probability of falling into poverty are presented. The distribution of people in poverty,
vulnerability, the middle class and upper middle class is described. It is shown that a 10%
probability of falling into poverty is more appropriate for the Chilean context. The second
sub-section shows the comparison between the socio-economic characteristics of people living
in poverty, vulnerability and the middle class.
141
3.6.1 Defining the relation between the probability of falling into poverty
and households' observed income
Transition matrices in Table 3-3 show a cross-classification of poverty status at the initial
time point in the rows, and the poverty status at the final time point in the columns. They are
presented for the periods 1996-2001 and 2001-2006 using the new poverty line implemented in
Chile since 2013.
Table 3-3 Poverty transition matrices 1996-2001 and 2001-2006
The percentage of people who were out of poverty in 1996 but had fallen into poverty in
2001 was 19.4% while this percentage was 14.3% between 2001 and 2006. Not only was falling
into poverty less probable during the last period than the first period but also moving out of
poverty was more likely between 2001 and 2006 than between 1996 and 2001. 34.5% of people
in poverty in 1996 had left poverty in 2001 and 51.7% did it between 2001 and 2006. These
numbers show that the higher reduction in poverty in the period 2001-2006 was accompanied
by a lower proportion of people falling into poverty and a higher percentage moving out of
poverty.
Table 3-4 presents the distribution of individuals between the two and among the four
more differentiated categories of poverty transitions explained in the methodology section.
Out of poverty In poverty Total
Out of poverty 80.6 19.4 100
In poverty 34.5 65.5 100
Out of poverty In poverty Total
Out of poverty 86 14.3 100
In poverty 51.7 48.4 100
Source: Author's calculations f rom CASEN Panel Database 1996-2001-2006
Row percentage distribution of individuals
Initial
Period
2001
1996-2001
2001-2006
Final Period 2001
Initial
Period
1996
Final Period 2006
142
Table 3-4 Poverty transition: 2 and 4 categories 1996-2001 and 2001-2006
The proportion of people ‘always poor’ was 27.5% and 18.7% in the period 1996-2001 and
2001-2006 respectively. The group ‘entering poverty’ decreased from 11.3% between 1996 and
2001 to 8.7% for the period 2001-2006. These two groups were in poverty in the final year,
representing 38% of the population in 2001 and 27.5% in 2006.
The variable that represents poverty status in the final year is used as a dependent variable
in the logit estimation to estimate the ex-ante probability of being in poverty in the final year.
The dependent variable takes the value of 1 if the individual is in poverty in the final year and 0
if it is not. In other words, the dependent variable is 1 when people are ‘in poverty’ and 0 when
they are ‘out of poverty’ in the ‘poverty transition 2 categories’. The main objective is to
predict the probability of falling into poverty in the final year from the initial year’s variables
and some changes along the period. This logit estimation comprises the second stage of the
methodology and the lineal estimations the third stage. The results of both estimations are
presented in Table 3-5 for the period 1996-2001 and Table 3-6 for the period 2001-2006.
1996-2001 2001-2006 2001 2006
Always poor 27.5 18.7
Entering poverty 11.3 8.7
Out of poverty 14.5 20.0
Never poor 46.8 52.5
Total 100 100 Total 100 100
Source: Author's calculations f rom CASEN Panel Database 1996-2001-2006
Column percent distribution of individuals
Poverty Transition 4 categories Poverty Transition 2 categories
Period Years
In poverty 38.8 27.5
Out of
poverty61.2 72.5
143
Table 3-5 Logit and Linear estimation 1996-2001
1996-2001
Model:
Dependent Variable:
Coeff. S.E. Coeff. S.E.
Education of head of household -0.185*** 0.039 0.100*** 0.014
Age of head of household -0.040 0.028 0.0226*** 0.007
Age squared of head of household 0.000 0.000 -0.000152* 0.000
Sex of head of household (male=1) -0.227 0.275 -0.165 0.109
Head of household without social insurance 0.429*** 0.109 -0.255*** 0.033
Household with unfinished floor 0.579*** 0.166 -0.083 0.047
Household without water sanitation 0.965*** 0.148 -0.106 0.059
Head of household married (omitted)
Head of household cohabiting 0.330* 0.142 -0.0396 0.030
Head of household without partner -0.787** 0.282 -0.131 0.121
Head of household in agriculture (omitted)
Head of household as unskilled manual worker -0.0587 0.162 0.0758 0.045
Head of household as skilled manual worker -0.848*** 0.196 0.0688 0.048
Head of household as independent worker -0.959*** 0.175 0.446*** 0.046
Head of household in clerical activities -1.520*** 0.193 0.200** 0.061
Head of household as professional manager -1.675*** 0.252 0.787*** 0.076
Region VII 0.703*** 0.190 -0.322*** 0.050
Region III 0.686*** 0.137 -0.283*** 0.036
Region VIII 1.143*** 0.114 -0.313*** 0.040
Metropolitan region (omitted)
Rurality -0.261 0.170 -0.026 0.049
Occurrence of health shocks 2001-2006 0.398* 0.190 -0.0622 0.043
Change in number of members working 2001-2006 -0.546*** 0.058 -0.140*** 0.019
Change in household size 2001-2006 0.231*** 0.037 0.0434*** 0.010
Percentage of children 3.372*** 0.301 -1.047*** 0.096
Percentage of elderly 0.0605 0.573 0.219 0.123
Constant 0.659 0.759 10.86*** 0.231
Observations 7,272 7,272
Pseudo R2/ R2 0.29 0.47
Source: Author's calculations from CASEN Panel Database 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model
Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
Poverty Income (ln scale)
Logistic Linear
144
Table 3-6 Logit and Linear estimation 2001-2006
2001-2006
Model:
Dependent Variable:
Coeff. S.E. Coeff. S.E.
Education of head of household -0.310*** 0.046 0.153*** 0.014
Age of head of household 0.042 0.048 0.001 0.013
Age squared of head of household -0.001 0.001 0.000 0.000
Sex of head of household (male=1) 0.485 0.317 0.000101 0.113
Head of household without social insurance 0.186 0.136 -0.063 0.033
Household with unfinished floor 0.193 0.116 -0.112** 0.038
Household without water sanitation 0.654*** 0.169 -0.268*** 0.032
Head of household married (omitted)
Head of household cohabiting -0.0605 0.175 0.0451 0.050
Head of household without partner 0.11 0.313 0.208 0.110
Head of household in agriculture (omitted)
Head of household as unskilled manual worker -0.16 0.194 0.0413 0.040
Head of household as skilled manual worker -0.550** 0.183 0.0998* 0.044
Head of household as independent worker 0.145 0.175 0.117** 0.044
Head of household in clerical activities -0.408 0.225 0.126* 0.052
Head of household as professional manager -1.486*** 0.318 0.365*** 0.076
Region VII -0.139 0.180 -0.0465 0.050
Region III 0.491*** 0.131 -0.167*** 0.035
Region VIII 1.064*** 0.138 -0.200*** 0.041
Metropolitan region (omitted)
Rurality 0.283 0.147 0.029 0.036
Occurrence of health shocks 2001-2006 0.0327 0.125 0.0151 0.041
Change in number of members working 2001-2006 -0.567*** 0.069 -0.111*** 0.013
Change in household size 2001-2006 0.133** 0.047 0.0397** 0.013
Percentage of children 3.760*** 0.399 -1.092*** 0.097
Percentage of elderly 0.263 0.611 -0.206 0.135
Constant -2.45 1.253 10.95*** 0.356
Observations 6,650 6,650
Pseudo R2/ R2 0.25 0.44
Source: Author's calculations from CASEN Panel Database 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model
Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
Logistic Linear
Poverty Income (ln scale)
145
The first two rows of Table 3-5 and Table 3-6 present the coefficients and the robust
standard errors of the logistic estimation and the third and the fourth column the same two
variables but for the lineal estimation. The statistical significance of the coefficients is
represented through the asterisks explained in the same table. The estimations show similar
results to the estimations of previous studies using the same approach, such as Hertova et al.
(2010); López-Calva & Ortiz-Juarez (2014); De la Fuente et al. (2017).
The number of observations is 7,272 for the estimation between 1996 and 2001 and 6,650
for the estimation between 2001 and 2006. These numbers are lower than the 10,286
individuals who were interviewed in all three waves presented in Table 3-1. The reason for this
reduction in the number of observations used in the estimations is because many household
heads do not have or do not provide all the information regarding their occupation. Around
70% of household heads are employed and almost all of them provided information regarding
their occupation which is used to build the EGP occupational classification. However, a small
proportion of people who are not working report their previous occupation’s characteristics.
Although some of them are unemployed the rest are out of the labour market. They are not
looking for a job and many of them have no work experience. This fact means that only some
of the household heads’ occupations can be classified into one of the following classes:
professional and managers, clerical workers, self-employed, skilled manual workers, non-skilled
manual workers, and agricultural workers. This is the reason why the number of observations
used in the regressions is reduced.
In order to analyze if this reduction in the number of observations has biased the
estimations, the logit and lineal regressions are conducted taking out the EGP classification.
The main objective of this second model is to compare how the estimations change in the
absence of occupational class. In addition, other robustness checks are carried out. A third
scenario is estimated replacing the EGP classification by a dummy of occupation (1 employed,
0 not employed) in order to incorporate people who are not working in the estimation. It is
important to remember that the variable ‘change in number of members working’ between one
year and another incorporates in a way the occupation status of all the members of the
household. A fourth model is estimated using the household as the unit of analysis. This
research uses the individual as the unit of analysis following the advice of the data collectors
146
(Annex N°3.9.2). This means using the household information for each household member.
The results of these robustness checks of the estimations are included in the Annex 3.10.4.
We already know that the potential bias that attrition between waves can generate is solved
through the use of longitudinal weights. It is also confirmed that the potential bias in the
estimation as a consequence of incorporating fewer observations of occupational class is not
present. The robustness checks done confirm that the four scenarios compared show similar
results. Coefficient signs are the same for the four models and their significance is very similar
in all four models. It is confirmed that Model 1 is the best among the four models compared.
The R-square is higher and it has more significant coefficients. Additionally, the incorporation
of the EGP classification variables is important for the predictability of the model. Four of the
five variables included are statistically significant in predicting the probability of falling into
poverty and low income. To conclude, Model 1 which includes the occupational classification
of the household heads predicts better than the other three models under comparison. The
incorporation of these variables does not bias the results. Moreover, they improve the
predictability of the model.
Regarding the variables included in the models, the expected signs and significance are
found. As expected, education is a relevant characteristic associated negatively with the
probability of being in poverty in the future and positively with household income. More
educated heads of households do have a smaller chance of falling into poverty and do earn
higher incomes. Again, these results are in line with previous evidence for Chile provided by
other authors such as Neilson et al. (2008).
Household conditions are also a significant determinant of the probability of falling into
poverty and family income. People who live in households without sanitation or with an
unfinished floor have a higher probability of being in poverty in the future and lower incomes
than households with better conditions. The degree of significance varies among the
estimations for 1996-2001 and 2001-2006 but still they are significant for some of the two
estimations.
The occupation of the household head shown explains an individual’s probability of falling
into poverty and their equivalised income. Skilled manual workers and professionals or
managers display a lower probability of falling into poverty than workers in the agricultural
sector in both periods. Additionally, independent workers, workers in clerical activities and
147
professionals or managers have higher incomes than workers in occupations with fewer
qualifications such as agriculture or unskilled manual labour.
The evidence shows that a household’s point in the life cycle matters in predicting the
probability of falling into poverty and household income. Younger households, measured
through having a younger head of household and households with children under the age of
15, have increased chances of being in poverty in the future and having lower incomes.
After both estimations are done, they are combined in order to obtain the relation between
the probability of being in poverty and equivalent income per person. The predicted
probability of falling into poverty is obtained for each individual from the logit estimation.
Then, the averages of the independent variables for an array of these estimated probabilities of
falling into poverty are estimated. These covariates that describe the interval of probability of
falling into poverty are combined with the second estimation, the lineal regression. The
average covariates from the logit estimation are multiplied with the resulting coefficient from
the lineal regression. The predicted income is obtained from this multiplication. This is the way
in which the probabilities of falling into poverty and predicted income are combined. The
advantage of using predicted income –a mean, conditional to characteristics- instead of the
observed income of the households is that predicted income has lower volatility and it reflects
the income generation capacity of the household. It is a measurement which is more related to
the assets that the household has than to the contingency of the moment (Lopez-Calva and
Ortiz-Juarez, 2014).
The estimation shows that higher probabilities of falling into poverty are correlated with
lower equalized income. Figure 3-1 shows the correlation between the estimation of equalized
income in the initial period –in log scale- and the probability in the initial year of falling into
poverty in the next year. Individuals with lower equalized incomes in the initial year face on
average a higher probability of falling into poverty in the future. They have less income and
probably less assets available to overcome any adverse shocks that may occur along the period,
making them more vulnerable to being in poverty in the future.
148
Figure 3- 1 Correlation between the estimated probability of falling into poverty and the predicted equalized income
Source: Author’s elaboration based on CASEN Panel Database 1996, 2001, 2006. Ministry of Social Development,
Chile.
Both periods show the same negative correlation between the estimation of the probability
of falling into poverty and the estimated equalized income. People with lower incomes in the
initial year confront a higher probability of falling into poverty in the final year than people
with higher incomes.
Moving to the real equalized incomes that people have, it can be observed that the inverse
relationship between incomes and probability of falling into poverty remains. The following
two figures show the equalized income per month in the initial year related to intervals of
probabilities of falling into poverty in the final year. Figure 3-2 shows the 1996 predicted
equalized income associated with the interval of probability of falling into poverty in 2001.
Figure 3-3 shows the same for the period 2001-2006. In order to facilitate the comparison,
equalized incomes in both figures are expressed in 2013 values. The advantage of using the
year 2013 is because the new poverty line has been used since then. The vulnerability threshold
will also be presented in 2013 values.
1996-2001
0.2
.4.6
.81
pro
ba
bili
ty to
fall
into
po
vert
y
10 11 12 13 14predicted household per capita income at log-scale
2001-2006
0
.2.4
.6.8
1
pro
ba
bili
ty to
fall
into
po
vert
y
10 11 12 13predicted household equivalised income at log-scale
149
Figure 3- 2 1996 Monthly equivalised incomes by probability of falling into poverty
Monthly incomes expressed in Chilean pesos year 2013. Source: Author’s calculation based on CASEN Panel Database 1996-2001-2006
Figure 3- 3 2001 Monthly equivalised incomes by probability of falling into poverty
Monthly incomes expressed in Chilean pesos year 2013. Source: Author’s calculation based on CASEN Panel Database 1996-2001-2006
0
50000
100000
150000
200000
250000
300000
350000
Ho
use
ho
ld a
du
lt e
qu
ival
en
t in
com
e p
er
mo
nth
Probability of falling into poverty
0
50000
100000
150000
200000
250000
300000
350000
400000
Ho
use
ho
ld a
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Probability of falling into poverty
150
The inverse relationship between higher incomes and lower probabilities of falling into
poverty declines fast up to 20% of probability of falling into poverty. It is more pronounced
up to the 10-12 per cent interval of probability in 1996 and up to the 8-10 per cent interval in
2001. From that point onwards, although income still decreases with higher probabilities, it
does so at a slower pace. The reduction of income continues at this pace up to the 24-26 per
cent interval of probability in 1996 and to the 22-24 interval in 2001. Income decreases at a
lower rate after those levels of probabilities of falling into poverty. This makes 10% and 20%
of probability of falling into poverty natural thresholds for identifying the group of people in
vulnerability to poverty.
The income poverty and vulnerability thresholds are presented in Table 3-7. This is the
same as Table 3-2 presented above but with the vulnerability thresholds obtained from this
research’s estimations. They are presented in the 2013 column because they were obtained
using the new poverty line used since that year. They are expressed in 2005 values in order to
make all the thresholds comparable. They represent the vulnerability income threshold
associated with the 10% and 20% probabilities of falling into poverty. The vulnerability
threshold estimated in this research is almost 17% higher than the vulnerability threshold
estimated by Lopez-Calva and Ortiz-Juarez (2014). Both of them represent the predicted
income associated with a 10% of probability of falling into poverty but they use different
poverty lines to find it. While the authors use the international poverty line of US $4 2005 PPP
this research uses the new poverty line established by the Chilean State in 2013. The
vulnerability threshold obtained in this research is in line with the current welfare measures
used in Chile.
151
Table 3-7 Monthly equivalised income thresholds 2005 Chilean Pesos
The distribution of individuals in each income category in the initial year 2001 is presented
in Table 3-8. The proportion of people in each category is presented using both vulnerability
income thresholds, one associated with a 10% and the other to a 20% probability of falling
into poverty. The percentage of people in poverty in 2001 is 38.8%. Their income is under the
poverty line independently of the probability of being in poverty that they face. The
proportion of people whose income is between the poverty line and the vulnerability line
represents 19.2% of the population if the vulnerability threshold is 10% and 8.3% if it is 20%.
Poverty line 2001 2005 2006 2013 2001 2005 2006 2013
Extreme 23,155 - 23,102 40,998 761 - 760 1,348
Moderate 46,312 - 46,204 61,497 1,523 - 1,519 2,022
Vulnerability 10% 141,238 4,643
Vulnerability 20% 114,646 3,769
Extreme US $2.5 29,456 968
Moderate US $4 47,129 1,549
Vulnerability US $10 117,822 3,874
Middle Class US $50 589,110 19,368
Source: Author’s calculation based on CASEN Panel Database 1996-2001-2006 and World Bank PPP Private Consumption.
Poverty line values on 2001 and 2006 are obtained through the old methodology.
The 2013 poverty line came f rom the new methodology for poverty measurement.
The 2013 poverty line represents the poverty line in the average household size of 4.43 inhabitants.
Poverty lines depend on household size ranging f rom 96,112 for a single household to 48,170 per capita in a household with 10 members.
Per day
International
National
Per month
Poverty line values expressed in 2005 Chilean Pesos
152
Table 3-8 Distribution of individuals among income groups in 2001 under two probability thresholds
Source: Author’s calculation based on CASEN Panel Database 1996-2001-2006 Values reported as percentages.
People who belong to the middle class are defined as those whose income is above the
vulnerability threshold and below the middle class threshold. The proportion of people in the
middle class is higher under a higher vulnerability threshold. Less people face a probability of
falling into poverty higher than 20% than at a probability higher than 10%. As a consequence
of this, 38.3% of individuals are in the middle class when the 10% threshold is considered and
49.2% when the 20% is taken. The middle class is smaller the lower the threshold for
economic security is.
The proportion of people in vulnerability halves if the vulnerability income threshold
associated with a 10% of probability of falling into poverty is used instead of the 20%
probability threshold. This happens because of the high density of people around these two
vulnerability thresholds. Figure 3-4 shows the kernel distribution of equalized incomes in 2001.
The red vertical line represents the poverty line for the average household size of 4.43
inhabitants. As was discussed previously, the new poverty line depends on household sizes
ranging from $95,342 Chilean Pesos in 2001 for a single household to $47,784 Chilean Pesos
in 2001 per capita in a household with 10 members. The red vertical line is a reference to the
poverty line for the average household size, $61,497 Chilean Pesos in 2001. The vulnerability
threshold of 20% expressed in equalized income is shown through the black line in the figure
and the higher vulnerability threshold of 10% through the blue line. Finally, the green line
shows the middle-income threshold.
Income groups 10% prob 20% prob
In poverty 38.8 38.8
In vulnerability 19.2 8.3
Middle Class 38.3 49.2
Upper middle class 3.7 3.7
Total percentage 100 100
Total observations 10,286 10,286
Vulnerability thresholds
153
Figure 3- 4 2001 Kernel distribution of monthly equalized incomes 2001
Author’s calculation based on CASEN Panel Database 1996-2001-2006 Monthly equalized income expressed in 2001 values Vertical lines: moderate poverty line (red line), vulnerability threshold 10% (black line), vulnerability threshold 20% (blue line), middle class threshold (green line).
A movement from the black line to the blue line covers 10.9% of the population. The high
density of population in this part of the income distribution makes the vulnerability threshold
selection very sensitive. This was also documented by López-Calva and Ortiz Juárez (2014)
who showed that varying the lower threshold of the middle class had a larger impact on the
size of the middle class. Considering that the lower threshold of the middle class is the upper
vulnerability threshold, its variation will also affect the proportion of people in vulnerability.
They note that where the poverty line falls with respect to the initial distribution is important
to determine poverty elasticity to growth. In this context, they argue that the operationalization
of vulnerability to poverty requires the defining of thresholds that are relevant to the specific
context and being consistent with the framework that supports the analysis. The conceptual
framework is even more relevant in a context of absolute welfare measures estimations which
are commonly made operational with arbitrariness in one specific dimension.
0
2.0
00e
-06
4.0
00e
-06
6.0
00e
-06
De
nsity
0 200000 400000 600000monthly equivalent income
154
The Chilean context has particularities that must be included in the operationalization in
the definition of our vulnerability threshold. First, the use of the new poverty line is crucial to
the identification of the vulnerability to poverty threshold. As was discussed before, the new
poverty line is used by this research to establish the vulnerability threshold. The considerable
difference between the income vulnerability threshold from the international poverty line or
the new national poverty line was already discussed and presented in Table 3-12. Second, the
concept of vulnerability that the country currently uses is important. Chile uses 60% of the
population to describe the vulnerable. This comprises people in poverty and people out of
poverty but facing a high risk of being in poverty. The majority of social assistance and social
protection programmes are targeted to the 60% most vulnerable of the population (Ministerio
de Desarrollo Social, Chile, 2015). This empirical threshold was used in the first paper of this
research to identify vulnerability to poverty in income distributions from 1990 onwards.
From this research’s estimations and using the 10% of probability of falling into poverty as
the vulnerability threshold, the 38.8% of the population in poverty plus the 19.2% of people in
vulnerability to poverty is equal to 58%. This percentage is almost the same that the 60% used
by the State of Chile to target their Social Protection System.
From an empirical point of view, it can be argued that the threshold of 10% probability of
falling into poverty is more appropriate in the context of Chile today. The use of the new
poverty line identifies this threshold as relevant to defining the income groups in the Chilean
context. In the following section the income groups are characterized and compared.
3.6.2 Are the socio-demographic characteristics of people living in
vulnerability to poverty different from those of people living with
less or with more income?
Comparisons of the socio-demographic characteristics of people living in poverty,
vulnerability and the middle class are presented here. The variables used are those used in the
logit and lineal estimation plus other covariates. Among the additional covariates compared is
the family composition of the household. Households are classified into the following
categories: single; nuclear two-parent; extended two-parent; nuclear single-parent; extended
single-parent. Nuclear families consist of parent/s and children. Extended families are those
155
formed by nuclear families with additional relatives or non-relatives. ‘Single-parent’ is when
only one parent is present and ‘two-parent’ when both of them live in the household.
The variables used to characterize the income groups represent all the socio-demographic
characteristics available in the CASEN Panel Database. Table 3-13 presents the mean of these
variables for each group; the mean differences among the groups with their statistical
significance; the p-values of the difference mean test; and the number of observations in each
group of income. To analyze the statistical significance of mean differences among income
groups, mean t-tests are conducted. The main objective of these comparisons is to analyze
whether people in vulnerability to poverty differ from the other two groups of incomes or not.
In other words, the aim is to know if people whose incomes are above the poverty line but
below the vulnerability income threshold associated with a 10% probability of falling into
poverty have socio-demographic characteristics that differ from people in poverty and the
middle class. The analysis is presented for the year 2001 which is the most recent data available
for an initial year.
The figures in Table 3-9 show the noteworthy differences between the socio-demographic
characteristics of people living in vulnerability and the other two income groups. In general
terms, it can be said that the group of people living in vulnerability to poverty differ from both
those people living in poverty and people who belong to the middle class. The differences
between people in vulnerability and those in the other two groups are large and statistically
significant. The main differences are presented in detail in the next paragraphs.
Human capital variables show large and significant differences among groups. Heads of
households in vulnerability have less years of education than heads of households in the
middle class but more years than those of households in poverty. The proportion of heads of
households with incomplete or complete basic education is higher in households in poverty
followed by households in vulnerability and the middle class. Heads of households in
vulnerability have higher levels of complete secondary education than heads of households in
poverty and equal levels to those in the middle class. A higher proportion of heads of
households in vulnerability has university education than those in poverty but lower than heads
of households in the middle class. In general terms, heads of households in vulnerability have
higher levels of education than heads of household in poverty but lower levels than heads of
156
middle class households. Education appears as a variable protecting against poverty and the
risk of being in poverty in the future.
The proportion of male heads of household is higher in households in poverty than the
other two groups. 79% of the heads of household in vulnerability and middle-class households
are male while this proportion is 82% of households in poverty. Heads of household in
vulnerability are more similar to heads of households in the middle class regarding their marital
status too. They have a similar proportion of heads of household without a partner which is
higher than those in households in poverty. Additionally, the proportion of heads of
household cohabiting is higher in households in poverty than in the other two groups which
show no difference in this variable. The proportion of married heads of household is not
statistically different among the three groups.
Regarding household composition, households in vulnerability and those in the middle
class have a higher proportion of single households than those in poverty. Middle class
households have the highest proportion of single households and nuclear single-parent
households. Households in vulnerability also have a higher proportion of single households
than those in poverty but they show an equal percentage of nuclear single-parent households
as those in poverty. Households in vulnerability present the highest proportion of extended
families in their households. Extended families, with one or two parents, are more common in
households in vulnerability than households in poverty. This suggests that extended families
are a characteristic of households in vulnerability. Households in poverty and those in
vulnerability are similar regarding household size with or without scales of equivalence being
taken into account. They do not differ importantly in the number of members of household
but in family composition. Households in vulnerability have a lower proportion of nuclear
families with two parents, a higher proportion of extended families and a higher percentage of
single households than households in poverty.
The occupations of heads of households also present clear difference among these income
groups. Heads of households in vulnerability work less in agriculture than those in poverty and
more than those in middle class. They are employed more in manual work than heads of
households in poverty and in similar rates to those in the middle class. Again, they are in
between heads of households in poverty and the middle class regarding the proportion
working as an independent worker. This proportion increases while incomes are higher
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representing 9% for heads of households in middle class. The same happens with clerical
activities and professional managers. In both cases, the rate increases while the income
increases. Middle class heads of households work more in these kinds of occupations than
heads of households in vulnerability, who at the same time work more in these occupations
than those in poverty. Occupation categories such as self-employed, in administrative activities
and professional managers are related to higher incomes. Middle class heads of households are
more likely to work in these sectors followed by those in vulnerability. Heads of households
who work in these occupations face a lower probability of being in poverty in the future.
These results agree with the idea, proposed by Goldthorpe and McKnight (2004), that
workers’ occupations are related to economic vulnerability. Here, occupations such as self-
employed, administrative activities and professional managers are related to less vulnerability.
Heads of households who work in these occupations have higher incomes that allow them to
protect themselves from risks. The majority of them live in middle class households. In
opposition there are occupations like agriculture and unskilled manual activities which have a
higher prevalence among heads of households in poverty and vulnerability.
Household basic services are less available in households in poverty than households in
vulnerability. At the same time, they are less available in households in vulnerability than
middle class households. Households without sanitation or with unfinished floors are a
variable with higher prevalence among households in poverty followed by households in
vulnerability. The proportion of households without sanitation or with unfinished floors is
almost zero in middle class households when less demanding thresholds are used.
Another significant difference among people living in poverty, vulnerability or the middle
class is the rural or urban location of their households. A higher proportion of people in
poverty live in rural areas than people in vulnerability and the middle class. Here, a
demographic variable is related with lower incomes. People in poverty are more concentrated
in rural areas than people in vulnerability and people in vulnerability live more in rural areas
than those who belong to the middle class. Rural location appears as a variable related with
poverty and the risk of being in poverty in the future. Urban households are more likely to be
protected against the risk of being in poverty.
The point of a household in the life cycle is different among the three groups. One of the
variables that can be used as a proxy of the household’s point in the life cycle is the age of the
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household head. Heads of households in poverty are younger than those in vulnerability, who,
at the same time, are younger than heads of middle-class households. In other words,
households with younger heads of households are more prone to being in poverty now and in
the future. Additionally, the percentage of children under 15 years or under 18 years is higher
in households with less income. Households in the middle class are those with the lowest
proportion of children at home. Households in vulnerability are in between households in
poverty and those in the middle class with a percentage of 25% of children under 15 years and
30% under 18 years. The incidence of older people in the household behaves exactly the
opposite. Middle class households have a higher proportion of elders at home than the other
two income groups. Again, households in vulnerability are in between the other two groups
where 11% of their members are individuals older than 64 years. This percentage is 7% in
households in poverty and 17% in middle class households. This suggests that younger
households are more prone to being in poverty and vulnerability. Households in poverty are
those with the youngest heads of households, they have the highest proportion of children and
the lowest proportion of older persons at home. They are followed by households in
vulnerability which have a higher proportion of children and lower proportion of elders than
middle-class households. This relation between the demographic composition of the
household and the household’s vulnerability to poverty will be explored in detail in the third
paper of this research. Children and older persons as vulnerable groups are analyzed. In
particular, the role of social assistance programmes over the poverty reduction of households
with children and/or older persons is explored.
Regarding variables that can change along the period or health shocks that can happen
between the initial and final year, significant differences among income groups are observed.
The number of heads of households who have reported an important health problem between
the initial and final year is not statistically different between households in poverty and
vulnerability. Middle class heads of households reported a higher incidence of health shocks
than households in poverty and vulnerability. This suggests that health shocks, at least as they
are collected by this survey, are not a significant variable to explain the higher probability of
being in poverty in the future. A higher incidence of shocks is actually related with higher
incomes.
159
The change in number of members of the household working between the initial and final
year is different among the income groups. While households in poverty increased their
number of members working, households in vulnerability almost did not change it and middle-
class households in decreased this number. This suggests that the increase of members
working in households is not a protection against the risk of being in poverty in the future.
The fact that this increase is higher in households in poverty may reflect the fact that they need
to increase the number of members working to increase their income. In that case, a higher
number of household members working represents the necessity to find more sources of
income for the household. As usually workers living in households in poverty earn lower
incomes, they need more people working to increase their income.
A variable that also changes differently between the initial and final year among groups is
household size. Households in vulnerability decreased their household size along the period at
the same level that those in the middle class but this drop was higher than in households in
poverty. Households in poverty are those who experienced the lowest reduction in household
size along the period. The drop in household size of those in vulnerability and the middle class
could have affected their lower probability of being in poverty as a consequence of producing
a higher income per person.
Table 3-9 Comparison between households’ characteristics in poverty, in vulnerability and middle class, year 2001
In poverty In
vulnerability
Middle
Class
In poverty-
In
vulnerability
In
vulnerability-
Middle
Class
In poverty-
In
vulnerability
In
vulnerability-
Middle
Class
In poverty In
vulnerability
Middle
Class
Years of education 6.88 7.70 8.69 -0.82*** -0.99*** 0.000 0.000 5,259 2,146 2,738
Non-formal education 0.07 0.05 0.05 0.017*** -0.003* 0.006 0.630 5,259 2,146 2,738
Uncomplete basic education 0.39 0.29 0.23 0.1*** 0.06*** 0.000 0.003 5,259 2,146 2,738
Complete basic education 0.20 0.18 0.14 0.01 0.04*** 0.251 0.000 5,259 2,146 2,738
Uncomplete secondary education 0.22 0.26 0.24 -0.04*** 0.02* 0.000 0.082 5,259 2,146 2,738
Complete secondary education 0.10 0.16 0.17 -0.05*** -0.02 0.000 0.103 5,259 2,146 2,738
Uncomplete university education 0.01 0.01 0.03 0.00* -0.02*** 0.874 0.000 5,259 2,146 2,738
Complete university education 0.01 0.03 0.12 -0.02*** -0.08*** 0.000 0.000 5,259 2,146 2,738
Age of head 47.6 52.6 56.0 -5.09*** -3.35*** 0.000 0.000 5,259 2,146 2,738
Sex of head (male) 0.82 0.79 0.79 0.04*** -0.01*** 0.000 0.536 5,259 2,146 2,738
Head without social insurance (the head is not affiliated)0.32 0.29 0.31 0.03** -0.01
0.012 0.2985,259 2,146 2,738
Unfinished floor (less demanding) 0.07 0.04 0.02 0.04*** 0.02*** 0.000 0.003 5,259 2,146 2,738
Unfinished floor (more demanding) 0.28 0.17 0.11 0.12*** 0.06*** 0.000 0.000 5,259 2,146 2,738
Household without water sanitation (less demanding) 0.06 0.01 0.00 0.05*** 0.01** 0.000 0.016 5,259 2,146 2,738
Household without water sanitation (more demanding) 0.31 0.12 0.07 0.19*** 0.05*** 0.000 0.000 5,259 2,146 2,738
Household without water 0.19 0.06 0.03 0.13*** 0.03*** 0.000 0.000 5,259 2,146 2,738
Head cohabiting 0.11 0.09 0.07 0.03*** 0.02* 0.000 0.067 5,259 2,146 2,738
Head married 0.71 0.69 0.69 0.02 0.00* 0.163 0.800 5,259 2,146 2,738
Head without partner 0.18 0.22 0.24 -0.05*** -0.02 0.000 0.235 5,259 2,146 2,738
Head in agriculture 0.09 0.06 0.04 0.03*** 0.02*** 0.001 0.004 5,259 2,146 2,738
Head as unskilled manual worker 0.08 0.10 0.10 -0.02*** 0.01 0.003 0.397 5,259 2,146 2,738
Head as skilled manual worker 0.03 0.06 0.05 -0.03*** 0.01* 0.000 0.068 5,259 2,146 2,738
Head as independent worker 0.04 0.06 0.09 -0.02*** -0.03*** 0.000 0.000 5,259 2,146 2,738
Head in clerical activities 0.03 0.06 0.10 -0.03*** -0.04*** 0.000 0.000 5,259 2,146 2,738
Head as professional manager 0.01 0.02 0.07 -0.01*** -0.05*** 0.000 0.000 5,259 2,146 2,738
Number of observationsMean Mean Difference Pr(|T| > |t|)
Household's Characteristics
161
Rurality 0.28 0.15 0.11 0.12*** 0.04*** 0.000 0.000 5,259 2,146 2,738
Occurrence of health shocks to the head of the household
during the last 5 years 0.25 0.26 0.30 -0.01 -0.04*** 0.251 0.009 5,259 2,146 2,738
Change in number of members working 0.37 0.01 -0.14 0.36*** 0.15*** 0.000 0.000 5,259 2,146 2,738
Change in household size -0.17 -0.28 -0.23 0.11** -0.05 0.011 0.253 5,259 2,146 2,738
Percentage of child in the household (15 years and below) 0.33 0.25 0.16 0.08*** 0.09*** 0.000 0.000 5,259 2,146 2,738
Percentage of children in the household (18 years and below) 0.40 0.30 0.21 0.01*** 0.09*** 0.000 0.000 5,259 2,146 2,738
Percentage of elderly in the household (over 64 years) 0.07 0.11 0.17 -0.04*** -0.06*** 0.000 0.000 5,259 2,146 2,738
Household size 4.93 4.84 4.23 0.09* 0.61*** 0.060 0.000 5,259 2,146 2,738
Equivalent household size 3.01 2.96 2.69 0.05 0.27*** 0.000 0.000 5,259 2,146 2,738
Equivalent income 58,066 115,187 216,611 -57,121*** -101,424*** 0.000 0.000 5,259 2,146 2,738
Per capita income 37,154 74,328 147,400 -37,174*** -73,071*** 0.000 0.000 5,259 2,146 2,738
Single 0.01 0.02 0.04 -0.01*** -0.02*** 0.000 0.000 5,259 2,146 2,738
Nuclear two-parent 0.61 0.55 0.55 0.06*** 0.00* 0.000 0.888 5,259 2,146 2,738
Extended two-parent 0.10 0.14 0.08 -0.04*** 0.06*** 0.000 0.000 5,259 2,146 2,738
Nuclear single-parent 0.17 0.16 0.20 0.01 -0.04*** 0.413 0.001 5,259 2,146 2,738
Extended single-parent 0.08 0.11 0.10 -0.03*** 0.01 0.000 0.211 5,259 2,146 2,738
Source: Author's elaboration f rom CASEN Panel Database 1996-2001-2006.
Percentages and amounts by individuals. Income variables are in 2001 Chilean Pesos.
Statistically signif icant mean comparisons *** p<0.01, ** p<0.05, * p<0.1. P-values are in the appendix.
The results show that there are significant differences among the three income groups in
almost all the covariates analyzed. It can be said that households in vulnerability are in between
households in poverty and middle-class households. They are getting closer to middle-class
socio-economic characteristics and getting far away from households in poverty. They have
more education, better household conditions and more qualified occupations than households
in poverty. They are similar in size to those in poverty and bigger than middle class
households. They are characterized by having more extended families than households in
poverty and middle class and by having more single households than those in poverty. They
are in between households in poverty and those in the middle class regarding the proportion of
children and older people at home. They are in a younger stage of the household’s point in the
life cycle than middle class households but older than households in poverty. They have the
same proportion of female heads of households than middle class households, which is higher
than those in households in poverty. The substantial and statistically significant differences
among the group in vulnerability and the other two income groups stress the importance of
making a distinction among these groups.
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3.7 Conclusions
This research investigates the characteristics of the population vulnerable to poverty, using
a theoretical framework for identifying the populations either side of them, those in poverty
and the middle class. This approach supports an empirical approach to measuring vulnerability.
Estimating a vulnerability income threshold allows the group of people living in vulnerability
to be identified. The socio-demographic characteristics and the prevalence of shocks in this
group are compared with the group of people living in poverty and those belonging to the
middle class. A discussion of the results of the study, as well as their empirical and theoretical
implications, follows.
A first finding of the study is to confirm the inverse relationship between incomes and
probability of falling into poverty. People with lower incomes in the initial year face, on
average, a higher probability of falling into poverty in the last year than those with higher
incomes. This result was also presented by López-Calva & Ortiz-Juarez (2014). Those with
lower incomes have less availability of monetary and asset resources to overcome any adverse
shocks that may occur over the period. Reduced availability of resources makes people more
vulnerable to poverty in the future.
The results show that income reduces fast as the probability of falling into poverty
increases fast up to the 20% level of probability of falling into poverty. From that point
onwards, although income still decreases while probabilities are higher, it does so at a lower
pace. This makes the 10% and 20% levels of probability of falling into poverty natural
thresholds for identifying the group of people in vulnerability to poverty. Empirically, the
threshold of 10% of probability of falling into poverty is closer to the definition used by the
State of Chile to target its Social Protection System. The majority of their social programmes
go to the 60% most vulnerable of the population. This definition includes people in poverty
and vulnerability. The threshold of 10% of probability indicates that 19. 2% of the population
is in vulnerability and 38.8% are in poverty. In conjunction, these almost equal the 60%
considered by the State of Chile. This makes the threshold of a 10% probability of falling into
poverty more relevant for the Chilean context.
A second finding of this study shows the sensitivity of the vulnerability income threshold
to the definition of the poverty threshold. The threshold estimated by this study is almost 17%
164
higher than the threshold obtained by López-Calva & Ortiz-Juárez (2014). In their study, the
income threshold associated with a probability of falling into poverty is equal to 10%, but the
threshold estimated by this research uses the ‘new poverty line’ implemented in Chile since
2013. This new poverty line is 30% higher than the US $4 PPP per day poverty line used by
López-Calva & Ortiz-Juárez (2014)58. These results corroborate the importance of measuring
vulnerability to poverty, considering, as with poverty, the welfare standards of specific context.
The vulnerability threshold obtained by this research is in line with the current welfare
measures used in Chile.
The key findings from this research refer to the characterization of vulnerability. This study
concludes that the population in vulnerability to poverty differs significantly from those in
poverty and from the middle class. The analysis from Chile suggests that the socio-
demographic characteristics and the prevalence of shocks are different across these three
income groups. It can be said that the group in vulnerability is in between people in poverty and
those in the middle class. They are not as deprived as those in poverty but they are not as
affluent as those in the middle class. A discussion of the main differences across these groups
follows.
Human capital variables show large and significant differences across the groups.
Households in vulnerability have heads of households with more years of education than those
in poverty but fewer years of education than those of middle class households. More of them
have completed the education cycle, similar to those in the middle class. However, much fewer
of them have completed university studies compared to the middle class. Education appears to
have a protective function against poverty and the risk of being in poverty in the future.
Households in vulnerability have a higher proportion of female heads of households than
households in poverty but are more or less equal to households in the middle class.
Households in vulnerability are in between those in poverty and middle class regarding single
heads of households. The highest proportion of single households is in the middle class. The
same applies to single person households. Middle class households have the highest
proportion of single person households followed by those in vulnerability and then by those in
poverty. Households in vulnerability are similar in size to those in poverty and smaller than
58 To make the comparison poverty lines were expressed at 2005 values. That year the moderate poverty line was established by the World Bank at US $4 PPP per day.
165
those in the middle class. Although households in vulnerability and in poverty are almost equal
in size, they differ in their composition. Households in vulnerability have more extended
families than nuclear families. The highest proportion of extended families, with one or two
parents, is in households in vulnerability.
Heads of households in vulnerability are again in between heads of households in poverty
and middle class regarding the occupations in which they work. Occupations such as self-
employed, administrative activities and professional managers show less vulnerability. Heads of
households who work in these occupations have higher incomes that allow them to protect
themselves from risks. The majority of them live in middle-class households. In contrast there
are occupations like agriculture and unskilled manual activities which have a higher prevalence
among heads of households in poverty and vulnerability. These results confirm the view that
occupations can be stratified by economic vulnerability as suggested by Goldthorpe and
McKnight (2004).
Households in vulnerability have better access to basic services than households in poverty
but worse access than those in the middle class. The incidence of unfinished floors and
absence of water and sanitation services is highest in households in poverty followed by those
in vulnerability. This is in line with the higher propensity of households in poverty to be
located in rural areas than the other two groups. Rural areas have more limited access to basic
services. Households in vulnerability are again in between the other two groups regarding their
rural location.
The household’s point in the life cycle is different among the three income groups.
Households in poverty are those with the youngest heads of households, the highest
proportion of children and the lowest proportion of older persons at home. They are followed
by households in vulnerability that have a higher proportion of children and lower of elderly
than middle-class households. Younger households are more likely to be in poverty and
vulnerability.
Regarding the changes that households experience between the initial and final year,
important difference across the groups emerge. The incidence of health shocks in the period is
not statistically different when comparing households in poverty and vulnerability. Middle class
heads of households reported a higher incidence of health shocks than households in
vulnerability suggesting that this shock is not a determinant of higher levels of vulnerability.
166
Households in vulnerability show almost no change in the number of members of the
household working between the initial and final year. In contrast, households in poverty
increased their number of members working and middle-class households decreased this
number. This suggests that the increase of members working in households is not a sufficient
protection against being in poverty in the future. Households in vulnerability do not change
their number of members working but they decreased their household size along the period at
the same level that those in middle class but higher than those in poverty. Smaller household
sizes could have affected their lower probability of being in poverty.
These findings have important policy implications. First, there is a need to expand the
literature on vulnerability to poverty to actively consider contextual factors. Measurements of
the risk of being in poverty in the future, their characteristics, and consequences for well-being
must be analyzed in any particular context. The sensitivity of the vulnerability income
threshold to the definition of the poverty threshold and to the density of the population along
the income distribution highlights the importance of measuring vulnerability to poverty in a
specific context.
Second, this research confirms the importance of securing high incomes as a protection
against risks, in this case the specific risk of falling into poverty. This confirms that the
"augmented" poverty line concept proposed by Cafiero and Vakis (2006) can be estimated and
operationalized as a ‘vulnerability income threshold’. This threshold incorporates not only a
minimum basket of consumption and services, but also a basket of insurance against risks. It
represents income related to socio-economic characteristics and the assets of households as
ensuring less vulnerability to poverty as a result of idiosyncratic or asymmetric shocks (López-
Calva & Ortiz-Juárez 2014). Its estimation is feasible and it must be used in addition to
measuring poverty lines to identify the most vulnerable of the population.
Finally, the differences between people in vulnerability and the other two groups throw
light on the importance of designing social programmes specifically for people in vulnerability.
People in vulnerability differ from people in poverty and those in the middle class in almost all
the variables analyzed by this study. In order to reduce their vulnerability they need to increase
their opportunity to complete tertiary education and to have access to more qualified jobs.
Considering the fact that they have more extended families in their households they can be
helped to increase the chances of finding a job for all these members. Ensuring the wide
167
provision of child-care is a policy that can allow these households to increase their levels of
employment. Their high incidence of children at home reduces the chances of all the
household members to go out to find a job. Considering the fact that the households in
poverty and those in vulnerability are at a younger point of the household life-cycle, social
policies can be designed to protect households with younger heads of households or with
children.
As mentioned, the protection of the group of people in vulnerability to poverty has two-
fold benefits. On the one hand, reducing levels of vulnerability to poverty has a positive
impact on the well-being of people. On the other hand, reducing the likelihood of falling into
poverty contributes to the reduction of poverty levels in the future. Reducing vulnerability to
poverty needs a better understanding of its meaning in a particular context. This study has
contributed to this line of research.
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174
3.9 Annexes
3.9.1 Approaches to and Methodologies for measuring vulnerability to
poverty
Table 3-10 Approaches to and Methodologies for vulnerability
Approaches and
Methodologies Brief description Authors Adventages Disadventages
First attempts to understand
vulnerability as exposure to
risks.
It is not only vulnerability to
poverty. Vulnerability to
changes on wellbeing.
It measures vulnerability as
insecurity that generate losses
of wellbeing.
The changes on income (risk)
can be upward or downward.
It is difficult the estimation of
the cost of the insurance for
each individual or household.
It creates N poverty lines for
each individual or household.
As a consequence, poverty
gaps are not comparable
between individuals or
groups of people.
It considers only downward
variations of wellbeing. It
excludes upward changes of
wellbeing.
It's not a vulnerability to
poverty approach only.
It’s the first proposal regarding
subjective vulnerability.
It's a relative perception of
vulnerability instead of
absolute thresholds.
It reinforces the idea that only
downward variations of
wellbeing should be included.
It excludes upward changes of
wellbeing in the analysis of
vulnerability to poverty.
Some individuals in chronic
poverty are not vulnerable
under this approach. This
happens because they will be
in poverty in the future with
certainty (not vulnerability).
Identification of people in
vulnerability is confused
because it defines two
thresholds: poverty line and
poverty line plus inicial
wellbeing.
It is a theorical approach and
it does not explain how to
calculate the vulnerability
proposed.
The subjective perception of
wellbeing can be misaligned
with the objective state of
wellbeing of an individual.
Axiomatic argumentation
Dutta-Foster-Mishra
Proposal
It is an hibrid approach of vulnerability
because it combines an absolute
threshold (poverty line) with a relative
threshold (inicial level of income). The
inicial level of wellbeing is a proxi of the
capacity to manage risks. It is not only
important the fall into poverty but also
from which inicial level of income this
happened.
Dutta, Foster,
Mishra (2011)
It represents a step forward to
consider uncertainty in
poverty measures.
Vulnerability as
subjective perception
of downward risk
It defines vulnerability as the risk of
getting future losses of wellbeing. It
uses subjective information from
individuals regarding their own
perception of future shocks that they can
live and their probabilities.
Povel (2010)
It defines a vulnerability threshold
including the consumption needed to
satisfy basic needs plus the cost of an
insurance for a social acceptable risk.
Thus, the extended poverty considers
losses over wellbeing but risk exposition
too.
Vulnerability as
extended poverty
Cafiero and Vakis
(2006)
Vulnerability as exposure to risks
Vulnerability as
exposure to risks of
low income
households
It shows the relation between poverty
and exposure to risk of low income
households. Vulnerability as uninsured
exposure to risks. A household is
vulnerable if and only if it doesn't has
the capacity to smooth the consumption
in response to idiosyncratic income
fluctuations (Amin et al, 2003)
Glewwe and Hall
(1998); Dercon and
Krishnan (2000);
Amin et al. (2003);
Cocgrane (1991);
Ravallion and
Chauduri (1997);
Towsend (1994);
Jalan and Ravallion
(1999)
175
Source: Author’s elaboration following Hoddinott, J., & Quisumbing, A. (Hoddinott & Quisumbing, 2003a,
2003b) and Gallardo (2017).
It requires only transversal
data to calculate vulnerability
measures. It is a reason of its
popularity.
It makes several assumptions
to predict future
probabilities: household's
probability distributions of
consumption are log-normal,
these distributions are time
invariant, these distributions
are equal for all household.
All these assumptions are
questionable.
It is needed the
determination of a
vulnerability threshold
It establishes a confused
relation between a lower
probability of being in
poverty in the future and
more variance (risk) in
consumption.
Vulnerability can be
decomposed between a
poverty component and a risk
component (idiosyncratic risk
and aggregate risk).
The risk included in the
concavity of the utility
function is sensitive to
upward or downward
changes of wellbeing. Only
dwonward movements of
wellbeing are important to
determine vulnerability.
It uses expected poverty
approach expressed in utility
terms.
The risk component is very
sensitive to the choice of a
utility function and its
specifications and is not to
individual preferences and
particular household
situation.
It proposes a vulnerability
index based on axiomatic
propierties.
It proposes an asymetric
conception of vulnerability in
which only the downward
changes of wellbeing are
important to evaluate
vulnerability.
It includes expected poverty in
the analysis of vulnerability
and not only risk.
Vulnerability as expected poverty
Vulnerability as the
probability of future
poverty
It defines vulnerability to poverty as the
probability, in the current state, of being
in poverty in the future. It uses expected
poverty to measure the risk of being
under the poverty threshold in the
future. A household is vulnerable to
poverty if their probability to be in
poverty in the future is equal to or
greater than zero. This vulnerability is
relevant if the probability is equal to or
graeter than a defined threshold
(usually 0.5 or the proportion of people
living in poverty).
Christiaensen and
Boisvert (2000);
Prichett et al.
(2000); Chaudhuri
(2002); Chaudhuri
and Christiaensen
(2002); Kamanou
and Morduch (2002);
Chaudhuri (2003);
Christiaensen and
Subbarao (2005)
However, the election of the
convexity of the indicator
allow symetry of the risks.
Vulnerability as low
expected utility
It defines vulnerability like the
difference between the utility from
certain consumption level (usually the
poverty threshold) and the expected
utility under uncertainty. In the other
way around, a household is not
vulnerable when the expected utility of
their consumption es equal to or greater
than the utility of the basket that define
the poverty line. It uses the expected
utility of Von Neumann and
Morgenstern (1944) and the risk of
Rothschild and Stiglitz (1970).
Ligon and Schechter
(2002, 2003)
Calvo and Dercon
It defines vulnerability like the measure
of the magnitude in which a household
suffers the threat to confront poverty
states in the future.
Calvo and Dercon
(2005, 2007, 2008)
176
3.9.2 Panel CASEN 1996-2001-2006. Kinds of people interviewed by year
New babies and new members who have arrived at the household are also considered as
temporary members of the survey (miembros temporales de la muestra, MTM). The original
members of the survey (miembros originales de la muestra, MOM) who were interviewed from the
first wave of the survey are followed throughout time even when they have moved to live with
other households in the same region of the country. The objective of the survey is to follow
the MOM even when they live with new people.
Table 9 shows the number of MOM and MTM in every year of the Panel. The reduction
of MOM in the second and the third wave indicates the extent of attrition in the survey. Every
year there are people who do not respond to the questionnaire for different reasons. Some of
them may have moved to another house with an address unknown to the data collectors.
Other households may have moved to another region of the country which makes it not
possible to follow them. A group of households refuse to participate again in the survey. The
attrition rate is 28.2% for the 1996-2001 period and 50.9% between 1996 and 2006. “Although
this attrition rate may seem high, for a 10-year three-wave panel data set it is a reasonable rate,
when compared to international standards 59 (Bendezú et al. (2007); Czajka et al. (2008);
Fitzgerald et al. (1998)).
Table 3-11 Kinds of people interviewed by year
Source: Author’s elaboration from CASEN Panel Database 1996-2001-2006
59 eg. Panel Study of Income Dynamics, European Community Household Panel.
1996 2001 2006
MOM 20,942 15,038 10,287
MTM 0 3,549 4,281
Total 20,942 18,587 14,568
CASEN 1996-2001-2006
Interviewed people by years
177
3.9.3 Descriptive statistics of CASEN Panel Database
Table 3-12 Descriptive statistics: covariates, income and poverty. CASEN Panel Database
Household characteristics
(Percentage and averages of individuals) Mean S.d Mean S.d Mean S.d
Education of household head in the initial year
Years of education 8.6 4.3 9.1 4.4 9.6 4.4
Non-formal education 4.2% 20.2% 3.9% 19.5% 3.1% 17.4%
Incomplete primary education 22.0% 41.4% 22.9% 42.0% 22.0% 41.4%
Complete primary education 16.7% 37.3% 16.9% 37.5% 18.2% 38.6%
Incomplete secundary education 23.3% 42.2% 22.8% 41.9% 20.1% 40.1%
Complete secundary education 20.5% 40.4% 17.7% 38.2% 18.6% 38.9%
Incomplete universitary education 3.9% 19.4% 3.9% 19.3% 4.6% 20.9%
Complete universitary education 8.1% 27.3% 11.4% 31.7% 13.1% 33.8%
Marital status of the household head in the initial year
Cohabiting 8.3% 27.6% 9.3% 29.0% 10.4% 30.5%
Married 73.5% 44.2% 68.5% 46.5% 63.9% 48.0%
Without partner 18.2% 38.6% 22.1% 41.5% 25.7% 43.7%
Sector of activity of the household head in the initial year
Agriculture 4.5% 20.8% 4.8% 21.5% 5.0% 21.9%
Unskilled manual worker 10.3% 30.3% 9.7% 29.5% 10.7% 31.0%
Skilled manual worker 5.1% 22.0% 3.8% 19.1% 5.5% 22.8%
Independent worker 6.7% 25.0% 7.1% 25.6% 7.5% 26.4%
Clerical activities 6.7% 25.1% 8.9% 28.5% 8.5% 28.0%
Professional manager 4.7% 21.1% 4.5% 20.7% 8.3% 27.6%
Other characteristics of the household head in the initial year
Age (years) 47.05 13.73 50.85 13.95 54.34 13.98
Age squared 2,402 1,405 2,781 1,522 3,148 1,621
Male 81.8% 38.6% 80.9% 39.3% 77.0% 42.1%
Without social insurance (the head is not afiliated) - - 29.0% 45.4% 73.4% 44.2%
Other characteristics of the household in the initial year
Unfinished floor 16.8% 37.4% 16.0% 36.7% 20.2% 40.1%
Without water sanitation 18.7% 39.0% 12.5% 33.0% - -
Region III 2.9% 16.7% 2.9% 16.7% 2.9% 16.7%
Region VII 10.9% 31.2% 10.9% 31.2% 10.9% 31.2%
Region VIII 21.3% 41.0% 21.3% 41.0% 21.3% 41.0%
Metropolitan region 64.9% 47.7% 64.9% 47.7% 64.9% 47.7%
Rural 11.9% 32.4% 11.9% 32.4% 11.9% 32.4%
Percentage of child in the household (15 and below) 30.9% 21.8% 25.5% 20.9% 15.1% 17.6%
Percentage of child in the household (18 and below) 36.3% 21.9% 31.0% 22.5% 20.9% 20.1%
Percentage of elder in the household (over 64) 8.7% 19.5% 10.7% 22.7% 24.5% 29.1%
Household size 4.66 1.72 4.51 1.87 4.38 1.88
Equivalent household size 2.89 0.76 2.82 0.83 2.76 0.83
1996 2001 2006
Year
178
Changes and shocks in the household
Occurrence of health shocks to any member of the
household during the last 5 years
- - 32.3% 46.8% 43.2% 49.5%
Occurrence of health shocks to the head of the
household during the last 5 years
- - 14.6% 35.3% 26.4% 44.1%
Change in number of members working - - -0.10 1.08 0.19 1.11
Change in household size - -
Income and poverty
Moderate Poverty rate 23.5% 42.4% 20.2% 40.2% 10.5% 30.7%
Household equivalent income (Chilean Pesos 2006) 182,441 211,863 227,480 265,716 223,125 220,668
Household per capita income (Chilean Pesos 2006) 121,512 147,464 156,346 207,534 150,795 156,528
Total observation
Source: Author’s elaboration based on CASEN Panel Database 1996-2001-2006. Ministerio de Desarrollo Social, Chile.
10,286
3.9.4 Robustness Checks of logistic and lineal estimations
Model 1: All the variables available
Model 2: Without EGP classification variables
Model 3: Replace EGP classification variables by occupation status variable
Model 4: All the variables available by household instead by individuals
1996-2001
1996-2001 Logistic poverty
Model: Model 1 Model 2 Model 3 Model 4
Dependent Variable:
Coeff. S.E. Coeff. S.E. Coeff. S.E. Coeff. S.E.
Education of the head of the household -0.185*** 0.039 -0.342*** 0.031 -0.363*** 0.034 -0.149 0.078
Age of the head of the household -0.040 0.028 -0.0545** 0.021 -0.020 0.024 -0.048 0.059
Age squared of head of the household 0.000 0.000 0.000413* 0.000 0.000 0.000 0.000 0.001
Sex of thehead of the household (male=1) -0.227 0.275 -0.301 0.211 -0.013 0.239 -0.381 0.461
Head of the household without social insurance 0.429*** 0.109 0.166 0.101 0.257* 0.116 0.598** 0.229
Household with unfinished floor 0.579*** 0.166 0.623*** 0.142 0.715*** 0.151 0.59 0.326
Household without water sanitation 0.965*** 0.148 1.066*** 0.132 0.977*** 0.139 0.794** 0.281
Head of the household married (omitted)
Head of the household cohabiting 0.330* 0.142 0.237 0.129 0.172 0.140 0.238 0.309
Head of the household without partner -0.787** 0.282 -0.548* 0.225 -0.724** 0.246 -1.087** 0.408
Head of household working -0.812*** 0.160
Head of the household in agriculture (omitted)
180
Head of the household as unskilled manual worker -0.0587 0.162 -0.258 0.298
Head of the household as skilled manual worker -0.848*** 0.196 -0.854* 0.364
Head of the household as independent worker -0.959*** 0.175 -1.294*** 0.339
Head of the household in clerical activities -1.520*** 0.193 -1.546*** 0.373
Head of the household as professional manager -1.675*** 0.252 -2.011*** 0.506
Household Region VII 0.703*** 0.190 0.713*** 0.169 0.639*** 0.176 0.954* 0.388
Household Region III 0.686*** 0.137 0.698*** 0.113 0.563*** 0.122 0.770** 0.260
Region VIII 1.143*** 0.114 0.936*** 0.096 0.798*** 0.103 1.215*** 0.222
Metropolitan region (omitted)
Rurality -0.261 0.170 -0.208 0.132 -0.2 0.139 -0.302 0.297
Occurrence of health shocks 2001-2006 0.398* 0.190 0.319* 0.147 0.452** 0.157 0.323 0.350
Change in number of members working 2001-2006 -0.546*** 0.058 -0.379*** 0.044 -0.447*** 0.049 -0.440*** 0.130
Change in household size 2001-2006 0.231*** 0.037 0.189*** 0.028 0.227*** 0.032 0.325*** 0.077
Percentage of child in the household 3.372*** 0.301 3.295*** 0.284 3.172*** 0.287 2.789*** 0.527
Percentage of elder in the household 0.0605 0.573 -0.0521 0.352 0.007 0.386 0.357 0.906
Constant 0.659 0.759 0.896 0.603 0.922 0.696 1.155 1.550
Observations 7,272 10,026 8,923 1,876
Pseudo R2/ R2 0.29 0.24 0.24 0.28
Source: Own calculations from Panel CASEN 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model
Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
1996-2001 Linear Income (ln scale)
Model: Model 1 Model 2 Model 3 Model 4
Dependent Variable:
Coeff. S.E. Coeff. S.E. Coeff. S.E. Coeff. S.E.
181
Education of the head of the household 0.100*** 0.014 0.166*** 0.011 0.167*** 0.012 0.102*** 0.027
Age of the head of the household 0.0226*** 0.007 0.0213*** 0.006 0.0175** 0.007 0.0414** 0.014
Age squared of head of the household -0.000152* 0.000 -0.000137* 0.000 0.000 0.000 -0.000366* 0.000
Sex of thehead of the household (male=1) -0.165 0.109 -0.00316 0.081 -0.0702 0.084 0.042 0.149
Head of the household without social insurance -0.255*** 0.033 -0.113*** 0.030 -0.154*** 0.036 -0.302*** 0.068
Household with unfinished floor -0.083 0.047 -0.139** 0.044 -0.168*** 0.047 -0.0123 0.084
Household without water sanitation -0.106 0.059 -0.223*** 0.054 -0.214*** 0.057 -0.00567 0.106
Head of the household married (omitted)
Head of the household cohabiting -0.0396 0.030 -0.0683* 0.032 -0.0752* 0.034 -0.0454 0.065
Head of the household without partner -0.131 0.121 -0.033 0.089 -0.027 0.094 0.1 0.144
Head of household working 0.219*** 0.042
Head of the household in agriculture (omitted)
Head of the household as unskilled manual worker 0.0758 0.045 0.106 0.084
Head of the household as skilled manual worker 0.0688 0.048 0.0583 0.090
Head of the household as independent worker 0.446*** 0.046 0.491*** 0.089
Head of the household in clerical activities 0.200** 0.061 0.287** 0.110
Head of the household as professional manager 0.787*** 0.076 0.784*** 0.136
Household Region VII -0.322*** 0.050 -0.327*** 0.046 -0.331*** 0.047 -0.392*** 0.091
Household Region III -0.283*** 0.036 -0.277*** 0.035 -0.279*** 0.037 -0.342*** 0.063
Region VIII -0.313*** 0.040 -0.343*** 0.037 -0.354*** 0.038 -0.345*** 0.075
Metropolitan region (omitted)
Rurality -0.026 0.049 -0.080 0.051 -0.0828 0.054 -0.060 0.094
Occurrence of health shocks 2001-2006 -0.0622 0.043 -0.0528 0.037 -0.102* 0.041 -0.0973 0.080
Change in number of members working 2001-2006 -0.140*** 0.019 -0.154*** 0.015 -0.139*** 0.019 -0.152*** 0.035
Change in household size 2001-2006 0.0434*** 0.010 0.0444*** 0.009 0.0341*** 0.010 0.037 0.020
Percentage of child in the household -1.047*** 0.096 -1.081*** 0.084 -1.075*** 0.087 -1.203*** 0.159
Percentage of elder in the household 0.219 0.123 0.088 0.081 0.156 0.088 0.163 0.184
Constant 10.86*** 0.231 10.69*** 0.194 10.63*** 0.220 10.35*** 0.418
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Observations 7,272 9,989 8,888 1,872
Pseudo R2/ R2 0.47 0.42 0.44 0.48
Source: Own calculations from Panel CASEN 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
2001-2006 Logistic poverty
Model: Model 1 Model 2 Model 3 Model 4
Dependent Variable:
Coeff. S.E. Coeff. S.E. Coeff. S.E. Coeff. S.E.
Education of the head of the household -0.310*** 0.046 -0.316*** 0.039 -0.304*** 0.042 -0.232** 0.087
Age of the head of the household 0.042 0.048 -0.0951** 0.037 -0.0893* 0.043 0.096 0.076
Age squared of head of the household -0.001 0.001 0.000959* 0.000 0.001 0.000 -0.001 0.001
Sex of thehead of the household (male=1) 0.485 0.317 -0.0354 0.192 0.189 0.209 0.144 0.458
Head of the household without social insurance 0.186 0.136 0.0732 0.099 0.0801 0.106 0.300 0.266
Household with unfinished floor 0.193 0.116 0.370*** 0.093 0.305** 0.098 0.012 0.223
Household without water sanitation 0.654*** 0.169 0.677*** 0.129 0.653*** 0.132 0.439 0.307
Head of the household married (omitted)
Head of the household cohabiting -0.0605 0.175 0.0977 0.146 0.0831 0.160 -0.065 0.324
Head of the household without partner 0.11 0.313 -0.31 0.226 -0.297 0.242 0.049 0.445
Head of household working -0.615*** 0.120
Head of the household in agriculture (omitted)
Head of the household as unskilled manual worker -0.16 0.194 -0.334 0.393
Head of the household as skilled manual worker -0.550** 0.183 -0.981** 0.362
Head of the household as independent worker 0.145 0.175 -0.121 0.342
Head of the household in clerical activities -0.408 0.225 -1.006* 0.465
Head of the household as professional manager -1.486*** 0.318 -2.104** 0.677
Household Region VII -0.139 0.180 0.19 0.143 0.0435 0.146 -0.081 0.346
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Household Region III 0.491*** 0.131 0.639*** 0.109 0.563*** 0.113 0.550* 0.238
Region VIII 1.064*** 0.138 1.042*** 0.111 0.938*** 0.116 0.830** 0.257
Metropolitan region (omitted)
Rurality 0.283 0.147 0.318** 0.115 0.436*** 0.123 0.191 0.269
Occurrence of health shocks 2001-2006 0.0327 0.125 0.0529 0.099 0.0203 0.106 -0.109 0.255
Change in number of members working 2001-2006 -0.567*** 0.069 -0.369*** 0.048 -0.410*** 0.055 -0.543*** 0.139
Change in household size 2001-2006 0.133** 0.047 0.107*** 0.031 0.136*** 0.036 0.135 0.091
Percentage of child in the household 3.760*** 0.399 2.889*** 0.323 2.972*** 0.343 3.792*** 0.736
Percentage of elder in the household 0.263 0.611 -0.535 0.482 -0.718 0.520 0.731 0.868
Constant -2.45 1.253 1.111 0.940 1.253 1.058 -3.416 1.973
Observations 6,650 10,070 9,240 1,873
Pseudo R2/ R2 0.25 0.19 0.19 0.23
Source: Own calculations from Panel CASEN 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model
Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
2001-2006 Linear Income (ln scale)
Model: Model 1 Model 2 Model 3 Model 4
Dependent Variable:
Coeff. S.E. Coeff. S.E. Coeff. S.E. Coeff. S.E.
Education of the head of the household 0.153*** 0.014 0.187*** 0.010 0.182*** 0.010 0.138*** 0.026
Age of the head of the household 0.001 0.013 0.0264*** 0.008 0.0179* 0.009 0.008 0.022
Age squared of head of the household 0.000 0.000 -0.000156* 0.000 0.000 0.000 0.000 0.000
Sex of thehead of the household (male=1) 0.000101 0.113 0.175** 0.067 0.0635 0.069 0.188 0.133
Head of the household without social insurance -0.063 0.033 -0.0484 0.029 -0.0654* 0.031 -0.067 0.066
Household with unfinished floor -0.112** 0.038 -0.128*** 0.032 -0.105*** 0.032 0.003 0.074
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Household without water sanitation -0.268*** 0.032 -0.280*** 0.032 -0.303*** 0.032 -0.337*** 0.069
Head of the household married (omitted)
Head of the household cohabiting 0.0451 0.050 0.00117 0.046 0.015 0.050 0.070 0.091
Head of the household without partner 0.208 0.110 0.258*** 0.067 0.228** 0.070 0.177 0.118
Head of household working
0.271*** 0.036
Head of the household in agriculture (omitted)
Head of the household as unskilled manual worker 0.0413 0.040 0.046 0.083
Head of the household as skilled manual worker 0.0998* 0.044 0.051 0.089
Head of the household as independent worker 0.117** 0.044 0.059 0.091
Head of the household in clerical activities 0.126* 0.052 0.251* 0.110
Head of the household as professional manager 0.365*** 0.076 0.452** 0.148
Household Region VII -0.0465 0.050 -0.170*** 0.047 -0.133** 0.048 -0.137 0.120
Household Region III -0.167*** 0.035 -0.170*** 0.031 -0.156*** 0.032 -0.278*** 0.059
Region VIII -0.200*** 0.041 -0.200*** 0.032 -0.163*** 0.033 -0.207** 0.067
Metropolitan region (omitted)
Rurality 0.029 0.036 0.025 0.030 0.014 0.031 0.035 0.072
Occurrence of health shocks 2001-2006 0.0151 0.041 0.0179 0.031 0.0328 0.033 0.068 0.074
Change in number of members working 2001-2006 -0.111*** 0.013 -0.157*** 0.011 -0.145*** 0.011 -0.133*** 0.027
Change in household size 2001-2006 0.0397** 0.013 0.0515*** 0.009 0.0481*** 0.010 0.050 0.026
Percentage of child in the household -1.092*** 0.097 -0.932*** 0.084 -0.927*** 0.089 -1.230*** 0.168
Percentage of elder in the household -0.206 0.135 0.0581 0.079 0.0891 0.083 -0.225 0.223
Constant 10.95*** 0.356 10.25*** 0.233 10.28*** 0.262 11.01*** 0.555
Observations 6,650 10,056 9,226 1,873
Pseudo R2/ R2 0.44 0.42 0.43 0.45
Source: Own calculations from Panel CASEN 1996-2001-2006
Dependent variables: poverty status of households in logistic model,
household per capita income (ln-scale) in lineal model
Robust standard errors in parentheses, * p<0.05, **p<0.01, *** p<0.001
4 Paper III: Protecting vulnerable groups in Chile: the
contribution of social Assistance to the poverty exit
rate of children and older people
Abstract
Children and older persons are commonly over-represented in income poverty and
vulnerability making them the focus of many Social Assistance programmes. However, these
two vulnerable groups do not necessarily receive the same level of protection from the State.
The age-related bias of welfare institutions in relation to protection from poverty and
destitution creates a generational inequity in the allocation of public benefits. This paper
examines the generational equity of cash transfers targeted to children and older persons. The
empirical research is in Chile, a country where children are over-represented in poverty and
vulnerability while older persons are under-represented. The question that this research lays
out is the role of Social Assistance programmes over these disparities in poverty rates by age. A
partial fiscal analysis is carried out following the guidelines of the Commitment to Equity
Institute to compare the situation of these groups before and after direct taxes and cash
transfers. Overall, this study provides further evidence that the effectiveness of cash transfers
to reduce poverty depends on the kind and amount of cash transfer, and these, in the case of
Chile, are strictly in connection with the age composition of the household. The findings
confirm age bias towards households with older persons rather than households with children
that creates generational inequity.
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4.1 Introduction
Children and older people are two age groups that are commonly targeted by Social
Assistance (Barrientos, 2013). The over-representation of these two age groups in income
poverty and vulnerability make them the focus of many anti-poverty programmes. The
consequences of living in poverty over their well-being are observed in the short and long
term. In the case of children, there is a great deal of evidence supporting the view that poverty
during childhood affects not only developmental outcomes but also has damaging effects
extending over the whole life of an individual (Magnuson & Votruba-Drzal, 2009; Melchior et
al. 2007). In the case of older people, poverty can affect not only their quality of life but also
their quantity of life. For all these reasons, children and older persons are recognized as
vulnerable groups that need protection from the State.
Appropriate policy responses to poverty and vulnerability for each age group have been
developed in different countries. Social insurance and social assistance programmes targeted to
children and older persons in poverty are common in developing countries (Barrientos, 2013a).
However, these two age groups do not necessarily receive the same level of protection from
the State. Lynch (2006) distinguishes between welfare institutions biased towards older groups
and pensions –called occupational-based- and those putting more attention on families,
children and groups with weak ties to the labour market –named citizenship-based. The age-
related bias of welfare institutions in relation to protection from poverty and destitution
creates a generational inequity in the allocation of public benefits.
Social Assistance programmes in Chile, and cash transfers in particular, have contributed to
poverty reduction (Martinez-Aguilar et al., 2017). Since 1990 many different anti-poverty
programmes have been implemented which were expanded in 2002 to create a more integral
Social Protection System (Larrañaga, 2010). Cash transfers go not only to people in poverty
but also those in vulnerability to poverty during the last decade and a half. However, the effect
of cash transfers on poverty reduction by age has not been explored. The main objective of
this paper is to examine the generational equity of cash transfers in Chile, and in particular, to
compare the effectiveness of poverty reduction of cash transfers targeted to households with
children and households with older persons.
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Chile is an interesting case to study because it has one of the highest disparities between
child poverty rates and older persons’ poverty rates among Latin American countries (ECLAC,
2014). The poverty rate among children under 15 is 2.9 times the poverty rate among people
older than 55 (ECLAC, 2014). National figures show that 6.6% of people older than 60 were
in poverty in Chile in 2015 which was 70% less than the incidence of poverty among children
younger than 18 –which was 19.5%. In addition, older people have experienced a higher
decrease in poverty than the average population since 2006. The child poverty rate decreased
50% between 2006 and 2015 –from 39.5% to 19.5%- and the elderly poverty rate fell 70% in
the same period –from 22.8% to 6.6%. This shows that people aged 65 and over are not only
the group with the lowest incidence of poverty in the population but also the group that has
experienced the highest reduction in poverty between 2006 and 2015.
In addition, children are more vulnerable to being in poverty than older persons. One of
the main findings of Paper II of this thesis is that the age composition of the household is an
important determinant of vulnerability to poverty. Households with more children face a
higher probability of being in poverty in the future while having more elderly persons in the
household is related with a lower probability of confronting episodes of poverty in the
forthcoming years.
This evidence configures Chile as a country where children are over-represented among
people in poverty while older persons are under-represented among this group, and where
having a higher number of children in the household is related to higher levels of vulnerability
to poverty and a higher number of older persons means lower levels of vulnerability to
poverty. The question that this research lays out is the role of Social Assistance programmes
over these disparities in poverty rate by age.
The analysis in this chapter examines whether the effectiveness of cash transfers in Chile
on poverty reduction are age dependent. This paper aims to find answers to the following
research questions:
Do cash transfers reduce poverty for children and older persons equally?
Are children and older people equally covered by cash transfers?
Is the effectiveness of monetary transfers on poverty reduction dependent on the
recipient's age?
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What factors might underpin the effectiveness of differences in cash transfers on
poverty reduction between age groups?
In order to identify the effectiveness of cash transfers over poverty rates for both age
groups, a partial fiscal incidence analysis is carried out following the framework proposed by
Commitment to Equity (CEQ60) (Lustig & Higgins, 2013). The objective is to identify any
changes in poverty rate after the direct fiscal intervention: direct taxes and cash transfers. The
analysis measures the poverty exit rate as a consequence of fiscal intervention. This paper restricts
the analysis to direct taxes and cash transfers because the objective is to identify their effects
on income poverty. Among the cash transfers considered are both conditional and
unconditional types, and the pensions that households receive. Although direct taxes are
considered in the analysis, they are not very important in changes in poverty rates. The fact
that households in poverty do not pay direct taxes and just a small proportion of them pay
social contributions makes the effect of taxes over poverty rates very small.
The data source of this research is the 2015 National Socioeconomic Characterization
Survey (CASEN) –its most recent application- which is collected by The Ministry of Social
Development of Chile, and is representative at the level of country, regions, and rural and
urban areas. CASEN collects data from 83,887 households including the details of all the
incomes and cash transfers received from Social Assistance programmes.
The findings of this study show that cash transfers have an age bias in Chile reducing in a
higher proportion the poverty rates among older persons than among children. The incidence
of moderate poverty in the group of people over 64 years decreases by 57% after monetary
transfers, from 17% to 7.2%. Although children also experience a decrease in moderate
poverty -from 20.4% for children under 3 years and 19.3% for children between 4 and 18 years
to 17.6% and 16% for each group respectively- this represents a reduction of around 14% of
initial poverty rates. This means that the reduction of poverty after monetary transfers among
older persons is around 4 and 3 times greater than the reduction of poverty among younger
and older children respectively. This age bias is also observed in the proportion of both age
60 The Commitment to Equity (CEQ) Institute at Tulane University. http://www.commitmentoequity.org/
189
groups among people in poverty. Children remain over-represented among the population in
poverty after cash transfers while older people move from being over-represented in poverty
to being under-represented in poverty after monetary transfers.
The results also show that the effectiveness of cash transfers in reducing poverty is higher
among people living in households with older persons than in households with children. The
highest poverty exit rate after monetary transfers belongs to people living in households with
older persons and no children and the lowest to people living in households with children and
no elderly. People living in households with both children and older persons are in between.
This indicates that the effectiveness of cash transfers on exit poverty depends on the age
composition of the households. In particular, the effectiveness of cash transfers on exit
poverty is biased towards households where older persons live.
This study finds that the main reason behind the higher effectiveness of cash transfers on
exit poverty in households with older persons is the higher amount of cash transfers that they
receive. They are highly covered by cash transfers that are more effective in enabling exiting
poverty. The main cash transfer behind this is the non-contributory pension called Pensión
Basica Solidaria (PBS). The fact that older persons live in smaller households than children is
also part of the explanation behind their higher poverty exit rates. However, the much higher
exit poverty rates of people living in households with children and older persons –the biggest
in size- than for individuals who live in households with children and no older persons
indicates the fact that having an elder at home is more important than having a small
household size. Furthermore, the cash transfers received by people who live in households
with older person/s are more effective in exiting poverty even when poverty gaps are much
higher in those households than in household with children.
The complementarity of benefits in increasing the exit poverty rate is an additional finding
of this research. For instance, when benefits for families are combined with benefits for
workers or other benefits, the exit poverty rate of households with children and no older
persons increases. The same happens when benefits for families are combined with pensions.
This evidence supports the argument that the per capita amount of benefit is an important
element in increasing the exit poverty rate and not only the coverage of cash transfers among
people in poverty.
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Overall, this study provides further evidence that the effectiveness of cash transfers in
reducing poverty depends on the kind and amount of the cash transfer and those in the case of
Chile are strictly in connection with the age composition of the household.
This research contributes to the literature in several important ways. First, this paper
presents further evidence for the effectiveness of cash transfers on poverty reduction in a high-
income country like Chile. The importance of the contribution of anti-poverty programmes to
exit poverty in the short-run is presented. Second, this is the first study comparing the
effectiveness of cash transfers depending on the age composition of the household in Chile.
The age comparison raises the issue of the protection-promotion trade-off that anti-poverty
programmes confront. Third, this research also contributes to the literature on the
effectiveness of cash transfers by using a partial fiscal incidence analysis.
The paper is organized as follows. Section 4.2 presents the definition of vulnerable groups
and the justification for their protection. In Section 4.3 the context of poverty among children
and older persons is presented. Section 4.4 presents the context of poverty among these two
age groups in the context of Chile. In Section 4.5, the theoretical framework of the analysis is
presented. The following sections explain the data base used (Section 4.6) and the
methodology conducted (Section 4.7). Section 4.8 presents the main results of the paper. The
final section draws out the main conclusions and a discussion of the conclusions of the
research and its implications for policy.
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4.2 The vulnerable groups approach
A Social Protection System groups all the policy responses to conditions of poverty and
vulnerability considered unacceptable within a society (Barrientos, Hulme, & Shepherd, 2005;
Norton, Conway, & Foster, 2000). This policy response can be through social insurance, social
assistance and labour market policies (Barrientos, 2013; Barrientos & Hulme, 2008). Social
insurance is a protection against uncertain risk (unemployment or sickness) or life-course
contingencies (maternity or old-age) that individuals or households can face (Barrientos &
Hulme, 2008). Social assistance represents all public actions, from the government or
otherwise, that transfer resources to deprived groups or other groups with entitlements with a
moral justification. Deprivation is usually defined in terms of income poverty, alongside other
dimensions such as nutritional or social status. While social assistance is financed by
government taxation, social insurance is usually financed by employees’ and workers’
contributions.
Under this conceptualization of a Social Protection System, social assistance is focused on
morally or institutionally relevant social groups who are in a disadvantaged position in the
society. Among them are the groups called vulnerable groups. Commonly defined vulnerable
groups are children, teenagers living in the streets, orphans, single parents, migrants, disabled
people, old people, widows and indigenous groups, among others. They are characterized by
an accumulation of disadvantaging events that make it more difficult to achieve a high level of
welfare and these disadvantages are a combination of social and idiosyncratic characteristics.
Vulnerable groups confront a high propensity of finding themselves in fragile contexts ending
up in poverty or vulnerability many times.
Vulnerable groups are characterized by having a low productive capacity by themselves or
living in households with low productive capacity. This means that they usually live in a low-
income context and often in poverty. As a consequence of this, vulnerable groups have been
broadly used to select the beneficiaries of social assistance programmes targeted to poverty
alleviation. This method of beneficiary selection has been called categorical selection because it
is based on categorizing people from their identifiable demographic characteristics (Barrientos,
2013). However, not all the individuals who belong to a vulnerable group are in poverty. It
may be true that many orphans or children live in poverty but that does not mean that all of
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them are in that situation. The correlation between the characteristics that define belonging to
a vulnerable group and the incidence of poverty or extreme poverty is not always very strong
(Barrientos, 2013). This has made categorical selection a weaker instrument for selecting
beneficiaries on its own. As a consequence of this, categorical selection is usually combined
with a means or proxy means test that allows the identification of vulnerable groups living in
poverty or vulnerability.
As was mentioned, there is a broad list of vulnerable groups. National governments and
international organizations claim for different groups that they consider vulnerable. For
instance, the Food and Agriculture Organization of the United Nations (FAO) (2005) defines
as vulnerable groups who suffer from food insecurity or confront a risk of suffering from it.
From their perspective, the individual or household level of vulnerability is determined by their
exposure to risk factors and their capacity to confront or resist shocks.
From a Human Rights perspective, there are some groups of people vulnerable to
violations of their fundamental human rights that must be protected. This approach identifies
some particular groups “who, for various reasons, are weak and vulnerable or have
traditionally been victims of violations and consequently require special protection for the
equal and effective enjoyment of their human rights” 61 . The Human Rights approach
establishes that additional guarantees must be provided for persons belonging to these groups
and Human Rights instruments must be used as a “vehicle for the protection of vulnerable
groups within society, requiring states to extend special protective measures to them and
ensure some degree of priority consideration, even in the face of severe resource constraints”.
This approach defines vulnerable groups as people especially vulnerable to abuse of human
rights. Among these groups are: women and girls, children, refugees, migrant workers,
internally displaced person, stateless persons, national minorities, indigenous people, disabled
persons, physically and mentally disabled persons, the elderly, HIV-positive persons and AIDS
victims, Roma/Gypsies/Sinti, lesbian, gay and transgendered people, among others. Many of
them suffer from discrimination and oppression and need special protection. For instance,
UNICEF -mandated by the United Nations General Assembly- advocates for the protection
61 http://www.humanrights.is/en/human-rights-education-project/human-rights-concepts-ideas-and-fora/the-human-rights-protection-of-vulnerable-groups
193
of children’s rights. They promote the rights of every child, emphasizing the most
disadvantaged, excluded and vulnerable children (UNICEF, 2013).
In the context of Chile, the Social Protection System recognizes some vulnerable groups in
connection with their propensity for being in poverty (Ministerio de Desarrollo Social, 2013).
They recognize the existence of individuals living above the poverty line but facing a high
probability of being in poverty in the future. Among this vulnerable population they identify
specific groups that face a higher probability of being in poverty. These groups are defined as
vulnerable groups because their condition of defencelessness increases their probability of
being in poverty. Among these groups are disabled people, who confront higher rates of
poverty and lower rates of inclusion than the rest of the country’s population. In addition, are
considered people that belong to an indigenous group. They confront higher rates of poverty
and lower rates of inclusion than the rest of the country’s population. The homeless, who
were identified with a specific census in 2011, are also identified as a vulnerable group. Elderly
individuals -over 65 years- are recognized as a vulnerable group too. Families with a member in
prison are also in this category. Finally, children and young people under 18 years are
recognized as a vulnerable group.
Children and older persons, the two vulnerable groups that this research examines, are
characterized by the need for protection. They should not work, hence, their productive
capacity should be null. In the case of children, responsibility for them falls on their parents
who should but may not have the productive capacity to satisfy their needs. In the case of
older persons, they do not necessarily have relatives to care for them and their wellbeing
satisfaction falls mainly on the pensions that they have. Children and older persons living in
poverty define a specific vulnerable group. They live in households with a per capita income
below the poverty line, meaning that they do not have enough resources to satisfy alimentary
needs and many times non-alimentary necessities. As a consequence, many of them cannot
fulfil their economic and social activities properly. Poverty and extreme poverty configure a
vulnerable environment in themselves. As a consequence of this, these vulnerable groups living
in poverty are the most fragile groups. Children and older persons living in poverty or
vulnerability have been the priority for the majority of welfare states and social assistance
programmes. The importance of these groups is a widely shared societal value. They are the
focus of this research.
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4.3 Are children and older persons overrepresented in poverty?
This section presents evidence of poverty in children and the older population. The
evidence is presented using the dimensions of income and non-income, and using one-
dimensional or multi-dimensional poverty measures. Figures from developed and developing
countries are showed. The difference between age groups with respect to the propensity to be
in poverty, the consequences of being in poverty and the role of social policies in these
differences are presented in the following two subsections.
4.3.1 Poverty and deprivation among children
Children are the most affected by poverty around the world, representing half of the
extreme poor population in developing countries (UNICEF, 2016). Child poverty is pervasive
and persistent throughout the world and children are more vulnerable and at greater risk of
poverty than adults (Barrientos & DeJong, 2004; Save the Children, 2012; UNICEF, 2016)). A
recent study made by UNICEF (2016) shows that out of 767 million people living in extreme
poverty in 2013 almost 385 million were children62. The same report indicates that 19.2% of
children live in households in extreme poverty –less than US$1.90 a day- compared with 9.2%
of adults. This means that children are more than twice as likely to be in extreme poverty than
adults in developing countries. Moreover, children are the worst affected also when higher
thresholds for measuring poverty are considered. Data drawn from the World Bank shows that
45% of children are living in households that have less than US$3.10 per day per person
compared with 27% of adults. This evidence shows that children are the worst affected by
poverty transversely to different income poverty lines63.
Non-income indicators also show the high levels of poverty and deprivation that children
are experiencing today. Evidence for developing countries is provided by Gordon et al. (2003)
62 These numbers were based on data from 89 countries representing 85% of the developing world’s population. 63 UNICEF and The World Bank tested their findings against different economies of scales (families with more members have less marginal costs and share public goods) and equivalence scales (different ratios of children and adults’ consumption). They find that children were the worst off across developing countries in all the cases considered (UNICEF, 2016).
195
who used survey data sampling 46 households from developing countries to examine the
incidence of deprivation among children. They considered the following eight dimensions of
wellbeing: food, water, sanitation, health, shelter, education, information and access to services.
They estimated that one in two children in this sample suffered from at least one kind of
severe deprivation and one in three suffered from two or more dimensions of severe
deprivation.
A multi-dimensional worldwide perspective on poverty among children under 18 years is
provided by the disaggregation of the global Multidimensional Poverty Measure (global MPI)
by age group made by the Oxford Poverty & Human Development Initiative (OPHI) in 2017
considering 103 countries 64 . The global MPI considers the overlapping deprivations in
education65, health66 and living standards67 (Alkire et al. 2017). An individual is considered
multi-dimensionally poor if she or he lives in a household deprived of at least one third of the
weighted MPI indicators. The report shows that 48% of the multi-dimensionally poor people
are children68 compared with the 21% of adults in the same situation. This means that 37% of
children are multi-dimensionally poor –nearly two out of every five (Alkire et al. 2017). It
shows that children are over-represented among the poor because they represent 34% of the
total population but 48% of the poor. The report also highlights two important facts; the first
is that children have a higher incidence and intensity of poverty than adults and the second is
that younger children, aged between 0 and 9 years, are the poorest.
Although impoverished children suffer more hardship in developing than in developed
countries (Gordon et al., 2003), developed countries still have children living in poverty. The
percentage of children living in poverty according to the child poverty rate proposed by
UNICEF69 varies from about 5 to 7% in Northern European countries to 12.1% in United
Kingdom, and 23.1% in USA (Fernandez & Ramia, 2015; UNICEF Innocenti Research
64 They use a sample of 103 countries providing data between 2006 and 2016. The sample covers 5.4 billion persons or 76% of the world’s population and 92% of people living in low and middle-income countries. To see more detail about the sample, methodology and results go to OPHI (2017). 65 It considers two indicators: years of schooling and school attendance. 66 It considers two indicators: nutrition and child mortality. 67 It includes six indicators: cooking fuel, improved sanitation, safe drinking water, electricity, flooring, asset ownership. 68 Poor children are on average deprived in 52% of the weighted indicators. 69 UNICEF Innocenti Research Centre (2012) defines the child poverty rate as the proportion of children living in households with income below 50% of the national medium income.
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Centre, 2012). The UNICEF (2016) report shows that deprivation 70 among children in
developed countries varies between 3% in Netherlands and 72% in Romania. This indicates
that children suffer deprivation beyond income poverty in developed countries.
All these studies show that children experience poverty, deprivation and social exclusion at
a considerably higher rate than adults irrespective of the approach used to measure poverty
and the level of development of the country. It is a fact that a large number of children have
their basic rights compromised around the world affecting their future trajectories and
capabilities.
There are different channels through which episodes of poverty during childhood can
affect future outcomes. Among them are inadequate nutrition (Barrientos & DeJong, 2006),
poorer health outcomes (Fernandez & Ramia, 2015), lower levels of stimulation and learning
(Bradbury, 2007; Duncan & Brooks-Gunn, 1999; Votruba-Drzal, 2006) and changes and
stress, such as changes in family, shortages of social care and early entrance to the labour
market (Fernandez, 2015; Chamberlain & Johnson, 2013; Stein, 2012), that children in poverty
are usually exposed to.
All the evidence presented shows that children are the most affected by poverty, being
over- represented among the poor. In addition, it has been shown that the poverty experienced
by them has consequences that last a lifetime. This fact highlights the importance of
eradicating child poverty.
4.3.2 Poverty and deprivation among old people
The relation between poverty and older persons is different. Poverty rates among old
people relative to the rest of the population are not unequivocally higher around the world as
70 UNICEF identifies deprivation as when children lack at least 2 out of 14 items: three meals a day, at least one meal a day with meat, chicken or fish (or a vegetarian equivalent), fresh fruit and vegetable every day, books suitable for the child’s age and knowledge level, outdoor leisure equipment (bicycle, roller-skates, etc.), regular leisure activities (swimming, playing an instrument, etc.), indoor games (computer games, etc.), money to participate in school trips and events, a quiet place with enough room and light to do homework, an internet connection, some new clothes (i.e., not all second-hand), two pairs of properly fitting shoes, the opportunity, from time to time, to invite friends home to play and eat, the opportunity to celebrate special occasions, birthday, etc.
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are poverty rates among children. As was discussed above, child poverty is higher than national
poverty rates in any country but that is not the case for the group of people older than 60. In
some countries, older persons are in poverty equally as the rest of the population while in
other countries this group is under or over-represented among the poor.
The evidence of old-age poverty in Latin America shows significant differences across
countries (Gasparini et al. 2009; Popolo, 2001). Old-age poverty incidence, that is, the
percentage of people over 60 who live in households in poverty, ranges from 7.9% in Chile to
38.4% in Ecuador. The headcount ratio for the US$2 a day poverty line among the older
population goes from 0.8% in Uruguay to 66.4% in Haiti. The poverty rate among older
people –considering the US$2 a day poverty line- is considerably lower than for the rest of the
population in Argentina, Chile, Brazil and Uruguay and just slightly lower in Bolivia, Ecuador,
El Salvador, Guatemala, Haiti, Panama, Paraguay, Peru and Venezuela. In countries like
Honduras, Jamaica and Mexico, older people are over-represented among the poor. In
Argentina, Chile, Brazil and Uruguay the poverty rate for those over 60 is between 10%
(Uruguay) and 40% (Argentina) of the poverty rate for the total population. In contrast, in
countries like Mexico or Jamaica poverty rates for older persons are around 20% higher than
for the rest of the population.
Different arguments have been provided trying to explain the differences in the incidence
of poverty among older people across countries. One argument establishes that older people
might be poorer than younger generations just because they have received less education.
Under this perspective the higher gap in years of education between older persons and adults
must correlate positively with relative old age poverty. A second theory argues that older
people tend to live in households of smaller size than adults and this can explain the lower
degree of poverty. In this scenario, relative old age poverty is positively correlated with a
higher gap in household size between the older population and adults. However, it can also be
considered a negative consequence of this different demographic structure of older persons
because it can reduce the advantages of household consumption economies of scale (Gasparini
et al., 2009). A fourth idea establishes that the majority of people have less income after a
certain age. Different reasons can lie behind this reduction in income that increases the
probability of being in poverty. Under this conceptualization, the higher risk of old age must
be reduced through pension systems for older persons. Poverty in old age must be negatively
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correlated with deeper pension systems. The last argument implies that the differences among
old age poverty rates just come from the fact that some countries are richer than others.
Countries with a higher economic development as indicated by Gross National Income per
capita have the ability to establish better pensions systems.
The evidence for Latin American countries shows that the third argument is the most
important in explaining the differences in old age poverty among countries (Barrientos, 2006;
Gasparini et al., 2009). The strongest explanation can be found in the extent of support that an
old age population receives. Gasparini et al. (2009) estimate a significant negative relationship
between relative old age poverty and the development of the pension system –measured
though the share of old people in the population receiving pension payments. The rest of the
arguments are not as important as this one. Gasparini et al. (2009) finds that the correlation
between relative old age poverty with education and household size seems weaker. The effect
of the educational upgrading of the younger generation shows a positive but low correlation
with the higher level of poverty among older people. The lower size of the household is
positively correlated with lower relative old age poverty but driven by Argentina and Uruguay
where a large fraction of older people lives alone.
The negative relation between relative old age poverty and the share of old people in the
population receiving a pension is driven by the Southern Cone countries: Argentina, Chile,
Brazil and Uruguay. They have pension schemes with a higher coverage than the rest of the
countries. On average 66% of the population is covered Gasparini et al. (2009)71. These four
countries have a lower incidence of poverty of older persons meaning a significant under-
representation among the poor. These four countries and Costa Rica and Bolivia have cash
transfer programmes focused on older people in poverty (Barrientos, 2006). This indicates that
old-age poverty incidence in Latin America is strongly influenced by social policy (Barrientos,
2006).
The same relationship between lower old age poverty and comprehensive pension schemes
can be observed in developed countries. In these countries, the relative living standard of older
persons is higher because of the combination of small households, robust social security
systems, and well-developed capital markets (Gasparini et al. 2010). The majority of developing
71 Compared with the rest of countries where on average 14% of older people are covered.
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countries are characterized by exactly the opposite scenario. Older persons live in extended
households sharing the household budget among a large number of inhabitants and children;
pension systems are not available for all the population and formal credit is not accessible for
everyone (Gasparini et al. 2010).
The extent to which older persons are in poverty compared with the rest of the population
must be considered in any social policy discussion. This is even more important in the context
of the population ageing process leading to an increase in the share of older people in
populations throughout the world. The reduction in fertility rates and the increase in life
expectancy lead to an increase in the proportion of the population above a certain age. It is
expected that the numbers of persons aged 60 or above will double by 2050 and triple by 2100
(United Nations, Department of Economic and Social Affairs, Population Division, 2015).
The ageing of the population is projected for most regions of the world. The 11% of people
over 60 years in Latin America in 2015 is expected to increase to 25% by 2050. These numbers
are even higher for Chile. The projection is that the15.7% of people over 60 years in 2015 will
be 32.9% in 2050. Under this scenario, fiscal and political pressure for better health care,
pension and social protection systems are going to be in place sooner than later.
The evidence presented shows that, while children and the elderly are vulnerable groups
that are often over-represented in poverty, the pension system in some countries makes
poverty among the elderly lower than the average population. Countries with high coverage of
pension systems show lower poverty rates in the older population. This suggests that Social
Policy provides different levels of protection between age groups
4.4 Poverty rates by age in Chile
This research focuses on a comparison between the poverty rates of children and older
people. The relative poverty rates among older persons and children are presented here, both
of income poverty, which has traditionally been the way of measuring poverty in Chile, and
multi-dimensional poverty, figures for which have been provided since 2013. Although the
analysis of this study focuses on income poverty, this section presents both approaches to
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measuring poverty to provide a broader perspective of poverty among groups in Chile. The
reason to focus the analysis just on income poverty is because only direct taxes and monetary
transfers are considered by this research. These variables affect directly household income and
then their income poverty status.
4.4.1 Income Poverty
Income poverty –which this research is focused on- is measured through the absolute
poverty approach72. In the Chilean context, the poverty threshold to identify people living in
poverty is defined in terms of the satisfaction of basic needs: food and non-food needs.
Extreme poverty, instead, is evaluated in terms of the satisfaction of food needs only. Annex
N°4.11.1 describes the changes of the new methodology in measuring poverty and producing
the figures of poverty reduction throughout the years using both methodologies.
Under this conceptualization of poverty, the indicator of welfare used is income by
equivalent person. This measure considers, as income per capita does, the effect of the number
of household members on welfare, but in addition, it considers the economies of scale in
consumption inside households73. As a consequence of this, there is not a unique poverty line
per capita because of the equivalent scale. This means that the poverty line depends on the
number of members that a household has. In this way, there is a poverty line for each
household size. The following poverty rates presented –income and multi-dimensional- assume
that household resources are allocated equally among the members of the household. This
assumes complete within-household equality in living standards (Deaton, 1997).
Historically, the incidence of poverty among children has been higher than for the rest of
the age groups and also among older persons. Figure 4-1 shows poverty rates, measured
according to the new methodology, across age groups based on household equivalent income
for the five years with available data from 2006 to 2015. It shows large differences between age
72 This method establishes an absolute threshold of basic needs and the income poverty line needed to satisfy these basic needs. Under this approach, absolute poverty is identified where income is insufficient to provide basic needs such as food or shelter (Townsend, 1979). 73 The scale of equivalence was defined as 0.7 for each member of the household.
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groups. Poverty headcount rates are considerably higher for children below 18 years of age
than older persons above 60 years for all the years considered. The first year with information
available, 2006, the incidence of poverty among the older group was 22.8 % whereas among
children it was 39.6%. The difference between their incidences of poverty was 16.8 % in 2006.
The sharp reduction of poverty in the period between 2006 and 2015 was experienced by all
age groups. Poverty rates decreased more among children, in absolute terms, than among the
rest of the groups. The incidence of poverty among children decreased by 50% between 2006
and 2015, from 39.5% to 19.5%. However, the reduction of the incidence of poverty among
the older group was greater than among children from a relative perspective. The 6.6% of
older people in poverty in the year 2015 represents a reduction of 70% in the incidence of
poverty among this age group in 2006 which was 22.8%. This shows that people aged 60 and
over are not only the group with the lowest incidence of poverty in the population but also the
group who experienced the highest reduction in poverty between 2006 and 2015.
Figure 4-1 Percentage of people in income poverty Chile 2006-2015, by age group
Source: CASEN. Ministerio de Desarrollo Social. Chile. The differences between age groups are statistically significant at 95% between the years 2006-2009, 2009-2011, 2011-2013 and 2013-2015, except for the group 0-3 years and 18-29 years 2006-2009.
Chile is among the Latin American countries with the highest disparities between child
poverty rates and older persons’ poverty rates. The data provided by the ECLAC in the
39,6 38,5
24,5
29,2
22,5 22,819,5
17,8
11 11,39
6,6
0
5
10
15
20
25
30
35
40
45
0 to 3 4 to 17 18 to 29 30 to 44 45 to 59 60 plus
2006
2009
2011
2013
2015
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Panorama Social de América Latina (2014) compared the incidence of poverty of people younger
than 15 years and older than 55 years. It shows that the poverty rate among children is 2.8
times the poverty rate among older people. These figures just represent the average for the
region. The four countries of the southern cone of the continent have a greater disparity
between these two age groups. The poverty rate for children younger than 15 years is 8 times
higher than the poverty rate for older persons in Uruguay, 5.1 times in Argentina, 5.5 times in
Brazil and 2.9 times in Chile (ECLAC, 2014)(Figure 4-2). Countries like Colombia, Panamá,
México and Venezuela have lower disparities between these two groups but still the poverty
rate among children is more than double the poverty rate among older people. A similar
regularity but with lower disparities between the groups can be observed from the comparison
between younger population between 15 and 24 years and the older population over 55 years.
Figure 4-2 14 Latin American Countries. Relation between the poverty rate for population between 0 and 14 years and the poverty rate for the population over 55 years. Relation between the poverty rate for population between 15 and 24 years and the poverty rate for the population over 55 years. Surveys around the year 2013
Source: Comisión Económica para America Latina y el Caribe, ECLAC 2014. Figures came from data from household surveys in each country. Light blue bars represent the poverty rate of the group between 0 and 14 years/the poverty rate of the group over 55 years old. Blue bars represent the poverty rate of the group between 15 and 24 years/the poverty rate of the group over 55 years old.
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4.4.2 Multi-dimensional Poverty
The Chilean multi-dimensional poverty measure incorporates the following five
dimensions: Education, Health, Social Security and Work, Dwelling and Environment, and
Social Cohesion and Networks74. The Table N°4-17 in the Annex N° 4.11.2 describes the
indicators and cut-offs by dimension.
The difference between children’s and older people’s multi-dimensional poverty rate is not
so pronounced as it is with the income poverty rate. 26.8% of children between 0 and 3 years
and 22.4% of children between 4 and 17 years are in multi-dimensional poverty in 2015
compared with 21.6% of older people in multi-dimensional deprivation (see Figure 4-3). In this
case, both age groups are more in multi-dimensional poverty than the average of the
population – the 20.9% represented by the horizontal green line-. This is absolutely different
than income poverty where children are fairly above the average poverty rate of 11.6% - the
horizontal blue line - and people over 60 years are well below the average. This indicates that
the main disparity of poverty rates between these two age groups emerges when the focus is
on income. The reason for this finding is explored in the analysis of this research, as is the role
of the monetary transfers in these disparities.
74 These five dimensions have been used since 2015 onwards.
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Figure 4-3 Percentage of people in income and multi-dimensional poverty in Chile 2015, by age group
Source: Author’s elaboration based on CASEN, Ministry of Social Development. Horizontal lines represent average
income and multidimensional poverty rates.
The evidence presented shows that the incidence of poverty in children and older persons
is not the same. While children are the group with the highest incidence of poverty, older
people are the group with the lowest incidence of poverty among the population. This is very
clear when talking about income poverty. However, multi-dimensional poverty shows a
different picture. Even when children are still the group most affected by multi-dimensional
poverty, the older population is not the least affected. Both age groups are above the average
multi-dimensional poverty rate showing their higher vulnerability than the rest of the
population. The hypothesis behind the disparity between income and multi-dimensional
poverty is that non-contributory pensions play an important role in reducing income poverty
among the elderly. This is analyzed in the empirical section 4.8.
19,517,8
11,0 11,3
9,0
6,6
26,8
22,4 22,7
17,7 18,3
21,6
0,0
5,0
10,0
15,0
20,0
25,0
30,0
0 to 3 4 to 17 18 to 29 30 to 44 45 to 59 60 plus
Income poverty Multidimensional Poverty
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4.5 The theoretical framework
The theoretical framework is structured in two parts. The first part presents the theory of
change of cash transfers for the two vulnerable groups under analysis. There are presented the
arguments for poverty alleviation behind the cash transfers focused on children and older
persons. The second part presents the theory of fiscal mobility which is used in this research to
analyze the effectiveness of cash transfers on poverty.
4.5.1 Theories of change behind cash transfers to children and older
people
Although there is a diverse range of social assistance programmes with different specific
objectives, they share two main core objectives: improvements in household conditions and
productive capacity (Barrientos, 2012). They also share some intermediary objectives to
achieve the main objectives such as asset protection, asset accumulation, nutrition and service
utilization (Barrientos, 2012). It can be said that they share a common theory of change
composed of a sequence of intended positive impacts. It is expected that predictable modest
cash transfers to households in a scenario of good provision of basic services and favorable
economic conditions will generate immediate effects on household expenditure, saving and
investment decisions. In the short term, the cash transfer increases the household’s purchasing
power which is expected to affect household conditions and the productive capacity of the
household leading to poverty reduction. In the mid and long term, the cash transfer has
potential positive effects on household asset accumulation –physical and human- and
livelihood strategies leading to poverty and vulnerability reduction (Bastagli et al., 2016). Let us
see in detail how these positive effects are expected to happen.
Imagine a household beginning to receive a regular monetary transfer from a new cash
transfer programme recently implemented by the government. The amount is modest and is
provided every month meaning an increase in the household regular income. The household
confronts the decision regarding how best to use these new resources to improve their welfare.
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Considering the fact that these transfers usually go to households in poverty or vulnerability,
the new resources will contribute to addressing the household’s deficits. The additional
resources can be spent, invested or saved to cope with these deficits (Bastagli et al., 2016).
They can be spent on individual or household goods such as food, clothes, or furniture or on
access to services such as education, health or transport. The additional cash can also increase
the expenditure on less desirable goods such as tobacco or alcohol. The extra cash can also
contribute to increasing savings or to making small investments. All these effects of cash
transfers over expenditure, saving and investments have been called first-order outcomes which are
triggered as a consequence of the new cash transfers (Bastagli et al., 2016). In addition to the
outcomes generated by the use of these additional resources, the cash transfer can generate
some behavioural changes inside the beneficiaries’ households. The first-order outcomes can
trigger what are called second-order or intermediate outcomes. Among these outcomes are an increase
in school enrolment, attendance and retention; an improvement in food intake, food security
and dietary diversity; a higher utilization of health services; a higher diversification of economic
activities; a higher labour participation and an improvement in the sector of work; greater self-
acceptance, dignity, pride and hopefulness (Bastagli et al., 2016). Finally, the cash transfer can
have an impact over the medium or long term. These impacts are called third-order or final
outcomes. Among those impacts are an increase in school performance and progression; higher
nutritional outcomes and a higher health status; better livelihood strategies diversification and a
safer transition to adulthood; better income potential and productivity; and a higher resilience
(Bastagli et al., 2016).
The ways in which these outcomes are reached are affected by the design and
implementation of the programme, household behaviour and decision-making processes and
also by the environmental conditions of the households (Barrientos, 2012).
In terms of the design and implementation of the programme it is clear how they can
influence the outcomes of the programme. For instance, in terms of the design of the
programme, a higher level of transfer may be expected to lead to higher impacts on poverty
measures or a regular and predictable transfer should facilitate investment hence poverty
reduction. A longer duration of the transfer can also encourage more investment and a
sustained impact on poverty. In addition, the conditionality of the cash transfer and the
modality of the payments can also affect their potential impacts on poverty indicators. The
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selection of beneficiaries of the programme is also a crucial issue to see the impact of cash
transfer on poverty. Targeting cash transfers to populations in poverty can increase their
impact on poverty but it also means costs and challenges to political economy.
Household preferences and decision-making process can also affect the impact of the cash
transfer programme. They are usually less tangible with usually unpredictable impacts. The new
cash transfer can affect decisions like the way in which household members distribute their
time between labour and free time. For example, cash transfers can generate a reduction in
hours in work because the additional income may replace the salary earned in work. In
addition, cash transfers can generate the incentive to maintain income below the eligibility
threshold, thus reducing hours worked (Bastagli et al., 2016). Many cash transfers put school
attendance as a condition seeking to increase school hours and to reduce child labour. They are
seeking to generate behavioural changes regarding child education. In addition, the risk
preferences of the household can affect the way in which the cash transfer is spent. Moreover,
cash transfers can also affect the intra-household bargaining power and decision-making. Cash
transfers have the potential to empower the recipients of the cash, such as women, children or
older persons. In general terms, the additional cash can affect the set of choices of the
household leading to different behavioural responses. They can be positive, negative,
predictable and unpredictable.
Although the main objective of cash transfers to children or older persons is still poverty
alleviation, the channels in which the monetary transfer helps to reach the objectives can differ.
The following two subsections explain in more detail the mechanisms through which cash
transfers are expected to help children and older population to exit poverty.
4.5.1.1 Children
An anti-poverty transfer targeted to children, as any other anti-poverty transfer, is
expected to generate an improvement in household conditions and productive capacity. Here
are presented in detail the channels through which children can be benefited by the cash
transfers contributing to exit poverty in the short and long term.
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One of the main arguments of the provision of cash transfers targeted to children –
whether universally or at children in poverty- is the reduction of intergenerational poverty
persistence. As was explained in section 4.5, children living in poverty confront a vicious cycle
of negative long-term consequences of living in poverty during childhood. The possibility of
breaking this cycle is the main objective of cash transfers targeted to children. The cash
transfer programmes try to promote the increase in educational and health services use among
children through monetary support and usually setting conditions on education and health care
attendance to qualify. The main objective is to increase the likelihood of better education,
health and nutrition for children in poverty in the short run. This increases their human capital,
and that can allow them to exit poverty in adulthood. This is the main theory of change of
cash transfers targeted to children. What are called human development transfers pursue the
reduction of intergenerational poverty persistence through adding conditions to transfers
focused on children’s schooling and health care.
A first-order or immediate outcome of the cash transfer is the possibility of increasing
household expenditure on food leading to improved dietary diversity. These extra resources
can translate into a greater quantity and variety of food. The wider diversity of food increases
children’s nutritional status having immediate impacts on health status and potential
consequences on schooling such as higher concentration and lower absenteeism. This can be
reinforced through improvements in overall food security reducing the probability of skipping
meals. It is important to highlight that intra-household decision-making dynamics can affect
whether children are benefiting from such improved nutrition. In addition, the possibility to
invest the cash transfer in farm assets such as seed to grow more food or a cow to have more
milk has the potential to improve the nutritional status of children. This is a second-order or
medium-term effect if the cash transfer is invested.
Another channel in which the cash transfer can reduce child poverty is through making
access to services cheaper. The additional cash provided can boost household income reducing
direct, indirect and opportunity costs of education and health. The extra cash can help to cover
direct costs for education such as fees, school materials, uniforms, and books and/or direct
costs for health care such as fees and medicines. Indirect costs of education and health include
travel costs especially when children need to travel long distances to go to secondary school or
to obtain specialized health care. In addition, the cash transfer can reduce the opportunity cost
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of children being in school or of patients or carers while seeking care. The additional resources
can cover the foregone earnings because children are not working or they are not doing
household chores anymore. The reduction in child labour also has a positive outcome on
school attendance and retention than can lead in to a long-term increase in productivity.
Furthermore, cash transfers can be spent on other individual goods such as soap or shoes.
They have the potential to increase children’s participation in school as a consequence of an
increase in self-acceptance, dignity and pride (Bastagli et al., 2016). These goods can increase
children’s willingness to participate in school or to attend health services as a consequence of a
reduction in stigma (Bastagli et al., 2016).
The way in which an increase in school enrolment, attendance at school and retention
affects learning is not univocal because it is affected by many other factors, such as the
different quality of schools and of the household environment as well. However, it is expected
that improved educational outcomes in conjunction with better nutritional status and
improved self-acceptance means a gain in terms of cognitive and non-cognitive development
for children benefited by a cash transfer programme. These gains from schooling can influence
their productive capacity and as a consequence their longer-term employability and earning
potential (Bastagli et al., 2016).
An additional effect that cash transfers targeted to children can generate is a better and safe
transition to adulthood (Bastagli et al., 2016). The additional cash, the higher access to
education and health services all have the potential to reduce the exposure to many risks that
adolescents in poverty are usually exposed to, such as, transactional sex, violence, HIV
infection, early pregnancy or marriage, among others. The possibility of having role models at
school giving them aspirations for the future is among the benefits of higher levels of
education (Bastagli et al., 2016).
4.5.1.2 Older Persons
Cash transfers targeted to the oldest population have a different rationale than transfers
focused on children. Instead of putting attention on the future it concentrates on the present
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poverty of the older population. Older people who are in poverty need protection of their
assets, well-being and access to services.
Older persons should not have to work and in many cases they really cannot work. Cash
transfers given to them are not seeking to build their productive capacity because they should
not have to work anymore. They should be able to live on their pensions. Cash transfers
targeted to older persons are often non-contributory pensions for those who were not able to
save for pensions during their working life. Cash transfers targeted to older persons in poverty
usually replace an insufficient or non-existent pension.
Unlike the case of children, the elderly do not necessarily live with working adults. No
adults have legal responsibility over them, as is the case with children. This means that many
times they live without any relatives earning salaries. In this context, the cash transfer plays a
crucial role in the satisfaction of basic needs.
Older persons can have assets such as a dwelling or farm and non-farm assets and with a
high probability live from them. As a consequence of that, they need protection for their assets
being sometimes their only source of income. In this context, cash transfers can be an asset
protection.
As in the case of children, cash transfers can improve the nutrition of older persons. The
additional cash can be spent on more and/or better food, and as with children again, the
additional resources can increase service utilization. Health services are even more important
with age, becoming crucial for older persons.
Some cash transfers are income maintenance schemes. Their aim is to cover the poverty
gaps of households in poverty through income transfers. When these cash transfers are
targeted to households with older persons they reduce the problems of incentives and
information. They cannot work and their age is an objective parameter.
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4.5.2 Fiscal mobility
In order to analyse the effect of public transfers on poverty and vulnerability, the concept
of Fiscal Mobility is used, as proposed by Lustig (2011) and Lustig and Higgins (2012, 2013).
Fiscal mobility refers to the movements between the before and after situations among pre-
defined income categories (Lustig & Higgins, 2012). These pre-defined categories can be any
one chooses; for instance, extreme poverty, poverty, vulnerable, no-poverty. The Fiscal Mobility
concept identifies the movements across income distributions as a consequence of fiscal policy
in a particular period. A Fiscal Mobility Matrix “measures the proportion of individuals that
move from a before taxes and transfers income group (e.g. non-poor) to another income
group (e.g. poor) after their income is changed by taxes and transfers” (Lustig & Higgins, 2012,
p. 2).
There are many definitions and measures of income mobility that can be seen in detail in
Fields (2008). The concept of mobility used by Lustig and Higgins (2012) is called directional
mobility which is a subcategory of the ‘mobility of movement’ described by (Fields, 2008).
Under this conceptualization of mobility, Fiscal Mobility is formally described as “the directional
movement between the before and after net taxes situations among k pre-defined income
categories” (Lustig & Higgins, 2012, p. 3).
The fiscal mobility matrix depicts how fiscal policy contributes to the movement of
individuals from one income group to other income groups. The main interest of this research
is the transition between poverty and out of poverty states of two vulnerable groups: children
and older persons. The transition from poverty to out of poverty is called exit poverty. Again,
the fiscal mobility matrix allows us to identify how social assistance programmes contribute to
improving the poverty exit rate of households with children and households with older
persons.
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4.6 The data base
The data source of this research is the 2015 National Socioeconomic Characterization
Survey (CASEN). The Chilean Ministry of Social Development is the organization
responsible for its gathering who bid for its application every two or three years. The
National Institute of Statistics (INE) is responsible for the design of the sample and the
elaboration of weights and the Centro de Microdatos of The University of Chile performs the
data collection and processing. The sampling frame of CASEN is probabilistic and
stratified by clusters and in multiple stages. The final unit of selection is the dwelling. The
sample of CASEN 2015 has 83,887 households and 266,968 individuals being
representative at the level of country, regions, and rural and urban areas 75 (Ministerio de
Desarrollo Social, Chile, 2015).
The objective of this survey is to measure the socio-economic circumstances of the
population, mainly households living in poverty and priority groups for social policy,
considering aspects like education, health, housing, work and income. In particular, the
main objectives are to estimate the magnitude of poverty and income distribution; to
identify the shortcomings and demands of the population in the areas defined above; and
to evaluate the gaps between social segments and between territories. In addition, it has the
aim to evaluate the impact of social policy: to estimate the coverage, target and distribution
of public expenditure on the main national social programmes and to finally evaluate the
impact of this expenditure on household income and its distribution.
CASEN collects data about household’ incomes. Every household reports all the
sources of their monthly income. The detail of the cash transfers received by every
household is provided, which is particularly useful for this research.
75 The representativeness of the sample is also for some municipalities (139 of 350).
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4.7 Methodology
This research carries out a partial fiscal incidence analysis (Lustig & Higgins, 2013) through
the comparison of incomes before and after direct taxes and direct cash transfers. It is partial
because it does not consider the indirect taxes and transfers that are usually considered in a full
fiscal incidence analysis. This partial fiscal incidence analysis follows the framework proposed
by the Commitment to Equity (CEQ) (Lustig & Higgins, 2013; 2016).
The interest of this research is to see the effect of social assistance programmes on the
poverty and vulnerability of children and older persons. Social Assistance in Chile can be
grouped into three main areas: unconditional and conditional cash transfers, non-contributory
pensions, and near-cash transfers. The analysis carried out in this research considers all the
cash transfers –conditional, unconditional and pensions- but excludes the near-cash transfers.
This decision came from the fact that income poverty and vulnerability are evaluated from a
monetary perspective. Poverty and vulnerability statuses are assessed using the total income of
the household divided among its members. Therefore, the focus of this research is on fiscal
interventions that affect the total income of the household: direct taxes and cash transfers. It is
true that provision in kind, such as free meals at school, should reduce the proportion of
household income spent on food consequently increasing the household disposable income to
buy other things. However, the total household income remains the same after receiving the
in-kind transfer. Many fiscal incidence analyses try to monetarize in-kind transfers to create the
artificial income after a benefit. However, official poverty measures do not consider this
monetarization of in-kind transfers. Therefore, this research only considers fiscal interventions
that strictly change the total household income.
This kind of analysis has been described as an ‘accounting approach’ because it focuses on
what is paid and what is received in a fiscal intervention without assessing how this can affect
household decisions (Lustig & Higgins, 2016). It is plausible to think that direct taxes and cash
transfers may trigger behavioural responses among individuals or households, as was discussed
in Section 4.5.1. Individuals can take different decisions depending on the fiscal intervention
that are not captured in this analysis. However, these kinds of changes are difficult to isolate
and measure. The fiscal incidence analysis is point-in-time rather than life-cycle and does not
include behavioural responses or general equilibrium modelling. It represents a first-order
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approximation of the fiscal intervention. In the context of this research, the partial fiscal
incidence analysis is carried out to identify one first-order outcome of the cash transfers:
poverty reduction.
4.7.1 The three income measures in partial fiscal incidence analysis
In order to identify the effects of fiscal intervention, the following three different income
measures are compared: market income (pre-fiscal income before direct taxes and direct cash
transfers), net market income (after direct taxes and before direct cash transfers) and
disposable income (after direct taxes and direct cash transfers) – Figure 4-4.
Figure 4-4 Partial fiscal incidence analysis incomes
Source: Author’s elaboration from Lustig (2011); Martinez-Aguilar et al. (2017) and Bucheli (2016).
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4.7.1.1 Market income (MI)
This is a pre-fiscal income which is composed of wages and salaries from the informal and
formal sectors, income from capital, pensions (contributive and non-contributive), private
transfers (remittances or alimonies for example), and an imputed rent from owner-occupied
housing. The imputed rent applies to households who do not pay rent due to owning a
dwelling. The imputed value is equivalent to the rent to be paid in the market for a similar
house. The market income is the sum of the income called in the CASEN survey autonomous
household income 76 plus the imputed rent. This income is the most appropriate way to
understand a household’s permanent living standard because its represents the income that the
household members generate by themselves.
Fiscal incidence analysis can consider the contributory pensions of the Pay-as-you-go
system in different ways. These pensions can be treated either as government transfers or as
deferred income. The way in which pensions are considered will affect the fiscal incidence
analysis because on it depends in which income –market or disposable - the pensions are
included. It is usual to compare the fiscal incidence analysis in both scenarios in order to
analyze the importance of the different treatments for contributory pensions. Chile has a small
sized Pay-as-you-go system meaning that the fiscal incidence analysis conclusions are the same
whether pensions are considered as government transfers or as deferred income (Martinez-
Aguilar et al., 2017). As a consequence of this, this research presents the analysis considering
contributory pensions of the Pay-as-you-go system as deferred income. This means that they
are included in the market income because they are understood as an individual’s savings and
not as government monetary transfers. The contributory pensions that came from the
individual’s compulsory saving system –AFP- are included in market income too.
Every household’s members report their disposable income in the survey. This means that
the incomes reported by individuals in the CASEN survey are after direct taxes and social
contributions are in place. As a consequence of this, in order to identify the market income, it
is necessary to simulate the direct taxes and social contributions that individuals should have
76 Autonomous income represents the income from salaries and wages, earnings from self-employment, self-provision of goods produced by the household, allowances, bonuses, rents, interest and retirements, pensions, widow’s pensions and transfers between individuals (Ministerio de Desarrollo Social. Chile, 2014).
216
paid. This has been called a ‘reverse engineering process’ because it starts from income after
direct taxes (net market income) to the final simulated income before taxes (market income)
(Martinez-Aguilar et al., 2017).
The household income is obtained through the method of direct identification from the
CASEN survey. Every individual reports all the incomes they are receiving and the amount
received. The taxes that individuals pay are obtained through simulation. This means that the
taxpayers and the amount paid are simulated based on the tax system rules. The direct taxes
considered in the analysis are explained in the next subsection.
4.7.1.2 Net Market Income (NMI)
NMI corresponds to the market income minus direct taxes and social contributions. Direct
taxes are formed by taxes on salaries and remunerations called Secondary Category Tax (SCT) and
taxes on other personal income named Complementary Global Tax (CGT) of which rates range
from 0 to 40 percent. The method of simulation applies the statutory rate and discounts of each
taxable bracket stipulated by the Internal Revenue Service (IRS) to the taxable income reported
by each individual in the CASEN.
The Secondary Category Tax (SCT) is levied on income from dependent work, such as
salaries, contributory pensions and any other complementary remuneration. It is applied with
progressive tax rates over any dependent labour activity. Monthly incomes must be higher than
13.5 Monthly Tax Unit (UTM) which is equal to 607,000 Chilean Pesos and US$1,467 in 2015
to be taxable. The detail of the SCT rates is in the Annex 4.11.4.1
The Complementary Global Tax (CGT) is a personal, global, progressive and complementary tax.
It is levied on the annual total income obtained by an individual. The SCT or First Category Tax
(FCT) paid monthly is creditable against the CGT. The FCT is levied on income from capital
of commercial, industrial, mining and services enterprises, among others. The FCT paid by an
enterprise is a credit granted to the CGT when owners, shareholders, managers or partners
receive dividends from the enterprise. Tables in Annex 4.11.4 describe in detail the tax rates
for the three taxes described.
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Households in poverty do not pay taxes but what they do pay are social security
contributions. Formal employees pay health care 77 , unemployment insurance 78 , and
contributory pensions 79 . Contributions to health include the National Health Fund
(FONASA), and the health system of the armed forces (CAPREDENA) and the police
(DIPRECA). However, a small proportion of people in poverty pay social contributions as
well because they do not work as dependents. As a consequence of this, net market income
and market income are very similar for most of the people in poverty. Net market income is
not so relevant for the analysis of people in poverty.
4.7.1.3 Disposable Income (DI)
Disposable income represents post-fiscal income. This is after direct taxes and direct cash
transfers are in place. Disposable income is different from market income for people in
poverty because it takes social assistance into account. Social assistance here is composed by all
the cash transfers described in Table 4-1 and the discount on health contributions for older
people. People above 65 years who belong to the fourth most vulnerable quintile of the
population pay less in health contribution. This means that people receiving Aporte Previsional
Solidario or Pension Básica Solidaria have a reduction in their health contributions meaning an
increase in their disposable income. This reduction was from 7% to 3% in 2015 –the year of
the survey- and it was eliminated completely on 1st November 2016. Pensioners from
CAPEDRENA and DIPRECA do not have access to this discount. Again, as a small
proportion of pensioners in poverty pay for health contribution this discount is not very
important in this analysis.
The allocation method of cash transfers is direct identification. The CASEN survey provides
information about all the cash transfers that people receive and their exact amounts. The
health contribution discount is simulated in the survey.
77 It represents 7% of the salary. 78 It represents 0.3% of the salary. 79 It represents 20% of salary for workers in the Pay-as-you-go system.
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The cash transfers are grouped into benefits for families, benefits for pensioners, benefits
for workers and other benefits. These beneficiary groups are created and defined by the
Chilean Ministry of Social Development showing which groups are of interest for protection.
Among benefits for families are included the benefits for families in extreme poverty from the
main two Anti-Poverty programmes: Chile Solidario and Sistema de Igualdad y Oportunidades.
Among these benefits are: Bono de protección familiar; Bono de egreso; Bono base familiar; Bono Control
Niño Sano; Bono por Asistencia Escolar; Bono Logro Escolar. The periodicities with which these
benefits are delivered are also provided in Table 4-1. The details of the cash transfers in terms
of beneficiaries, beneficiary selection, periodicity, and objectives are presented in Annex 4.11.3.
As was explained in Section 2.3, during the government of President Michelle Bachelet
(2006-2010) the Social Protection System, under the name Red Protege (Protection Network),
was formally institutionalized. The main monetary transfer included in Red Protege was the
solidarity-based pillar for the old age pensions. The Pension Reform was implemented in 2008
and created the Aporte Previsional Solidario (APS, basic solidarity supplement) or Pension Básica
Solidaria (PBS, Basic Solidarity Pension) for those who were not able to save enough in their
compulsory individual saving system. The PBS represents the minimum pension that all
Chilean citizens are guaranteed. This monetary transfer is targeted to people 65 years old and
older that do not have a contributory pension, belong to the 60% most vulnerable of the
population and who have lived in Chile for 20 years or more (Larrañaga et al. 2014). The APS
is for people who have a contributory pension lower than the PBS. The amount of the APS is
the difference between these two pensions in order to guarantee the minimum PBS for all
people over 64 years that satisfies the characteristics already mentioned. The number of older
people who received PBS in 2014 was 400,436 and 627,020 people received APS.
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Table 4-1 Cash transfers considered in the analysis, CASEN 2015
Source: Author’s elaboration from Guia de Beneficios Sociales 2017, Ministerio de Desarrollo Social
4.7.2 Poverty Exit Rate
After market, net and disposable incomes are obtained for each household of the survey,
they are divided among household members to obtain per capita incomes. The allocation of
total incomes, taxes and benefits to each individual in the household assumes that the
resources of the household are equally distributed. This means that when an individual is
receiving a cash transfer this goes to the pooled income of the household. This analysis
Groups of beneficiaries Name of the benefit Amount, Chilean Pesos, year
2017
Periodicity
Aporte familiar permanente (ex bono marzo) $43,042 Once a yer (March)
Subsidio familiar al menor o recién nacido $10,844 Monthly
Subsidio Familiar (SUF) Mujer embarazada $10844 Monthly
Subsidio familiar a la madre $10,844 Monthly
Subsidio familiar para personas con Certificacion de Invalidez y
con Discapacidad mental
$21,688 Monthly
Subsidio de Discapacidad Mental para personas menores de 18
anos.
$66,105 Monthly
Asignación familiar depending on salary: up to $
10,844
Monthly
Asignacion maternal $10,844 Monthly
Pension Basica Solidaria de Invalidez $102,897 Monthly
Aporte Previsional Solidario de invalidez $102,897 Monthly
Subsidio al Consumo de Agua Potable % of the bill (maximum 15
monthly cubic metres)
Monthly
bono de protección familiar - meses 1 a 6 $15,516 Monthly
bono de protección familiar - meses 7 a 12 $11,823 Monthly
bono de protección familiar - meses 13 a 18 $8,127 Monthly
bono de protección familiar - meses 19 a 24 $9,899 Monthly
bono de egreso - meses 25 a 60 $9,899 Monthly
Bono base familiar depending on the poverty gap Monthly
Bono Control Niño Sano $6,000 Monthly
Bono por Asistencia Escolar $6,000 Monthly
Bono Logro Escolar between $56,253 - $33,752 Once a year
Pension Basica Solidaria de Vejez $102,897 Monthly
Aporte Previsional Solidario de vejez difference between PBS or
PMAS
Monthly
Bono de invierno $57,353 Once a year
Bono bodas de oro $307,516 Once in a life time
Bono al Trabajo de la Mujer % of salarie lower than
$453,282
Monthly
Subsidio Empleo Joven % of salarie lower than
$453,282
Monthly
Pensión por leyes especiales de reparación $102,897 Monthly
Otro subsidio del estado - -
Source: Guía de benef icios Sociales 2017. Ministerio de Desarrollo Social. Chile
Other benefits
Benefits for pensioners
Benefits for workers
Benefits for families
Cash Transfers Programmes
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considers that all the household members receive a benefit if one of them is covered by a
benefit. Here the analysis unit is the individual who has a market, net and disposable, per capita
income.
The per capita market and disposable incomes are used to estimate the poverty exit rate.
The poverty exit rate is defined as the proportion of people in poverty under market income
that is not in poverty under disposable income. It represents the probability of leaving poverty
due to cash transfers and it is represented as P(Em,d)80.
The poverty exit rate can be decomposed between the probability of being covered P(C) –
receiving the cash transfer- and the probability of leaving poverty given that the individual is
covered, P(Em,d/C). This decomposition allows us to separate the effect of the programme’s
coverage and the importance of the amount of the cash transfer for being taken out of
poverty, given that the individual is covered (Bucheli, 2016). The decomposition is expressed
in the following equation:
P(Em,d) = P(C)P(Em,d/C) (1)
The poverty exit rate can also be obtained for particular groups of cash transfers. This
research follows the strategy used by (Bucheli, 2016) and used in poverty dynamic studies to
decompose the poverty exit rate by groups of benefits. The author decomposed the transition
over time between “the frequency with which the population at risk experiences a relevant
event and the probability of transition, given the occurrence of the event” (Bucheli, 2016, p. 4)
following a strategy used in poverty dynamics studies (Beccaria et al., 2013; Jenkins & Schluter,
2001). Bucheli (2016) interprets the occurrence of an event as being covered by a social
assistance programme. Under this conceptualization, the population in poverty is divided in
terms of market income according to their coverage status. This research uses the classification
developed by the Social Development Ministry of Chile (Guía de beneficios Sociales 2017) which
assembles benefits for pensioners, benefits for families and benefits for workers. In addition,
80 The notation of this research follows the notation in (Bucheli, 2016).
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the category of other benefits is identified here because in the CASEN survey some people
report cash transfers from other programmes. Following Bucheli (2016), individuals are
classified according to these four categories of benefits.
Table 4-2 Groups of benefits
Groups of cash transfers
Household covered by (at least one member)
1 2 Benefits for pensioners
Benefits for families
Benefits for workers
Other benefits
I 1 Yes No No No
2 Yes No Yes (at least one of the benefits)
II 3 No Yes No No
4 No Yes Yes (at least one of the benefits)
III
5 No No Yes No
6 No No No Yes
7 No No Yes Yes
IV 8 Yes Yes No No
9 Yes Yes Yes (at least one of the benefits)
V 10 No No No No Source: Author’s elaboration.
Individuals belong to a particular group depending on the combination of benefits that
they receive. Two main categories of groups are created. The first category has five groups
represented in the first column of Table 4-2 from I to V. The second category is more
disaggregated into 10 groups. The first category puts attention on receiving or not benefits for
pensioners and/or benefits for families. The second category distinguishes more between the
other two kinds of benefits: for workers and other benefits. The results are presented using
these two categories.
All individuals can be classified into only one group meaning the groups are mutually
exclusive and cover all the possible combinations of benefits. This means that the probability
of transition from poverty under market income to non-poverty under disposable income is
equal to the sum of the transition probabilities of each coverage group (Bucheli, 2016). In
other words, the total poverty exit is equal to the sum of poverty exit of each category covered
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by the group of programmes i. The equation (2) describes the total poverty exit rate -the
transition from poverty under market income to non-poverty under disposable income- as the
sum of the probability of leaving poverty conditional on being covered by the group of
programmes i, from i=1 to n=10 or n=5 depending on the amount of groups considered.
P(Em,d) = ∑ P(Em,d/𝐶𝑖)𝑛𝑖=1 (2)
The equation (2) can be decomposed in the following two terms:
P(Em,d) = ∑ P(𝐶𝑖)P(Em,d/𝐶𝑖)𝑛𝑖=1 (3)
Where “P(Ci) is the probability that a poor person according to market income is covered by
the groups of programme i” (Bucheli, 2016, p. 5). The term P(Em,d/Ci) “is the probability that
a poor person leaves poverty conditional to being covered by i” (Bucheli, 2016, p. 5). The
decomposition allows us to disentangle the effect of the coverage of a group of programmes
from the amount of the transfers to that group for alleviate poverty (Bucheli, 2016).
4.7.3 Poverty and vulnerability lines
The objective of this research is to identify the effectiveness of cash transfers in taking out
of poverty and vulnerability to poverty two vulnerable groups: children and older persons. For
doing that, different poverty and vulnerability lines are considered. The idea is to compare
different welfare measures through the use of different international and national thresholds.
In addition, these different thresholds allow us to observe the transition between income
groups such as those in poverty, vulnerability and the middle class. The first two poverty lines
correspond to the extreme and moderate poverty lines used by international agencies: US$2.5
dollars and US$4 per capita per day at 2005 purchasing power parity (PPP). These poverty
thresholds are expressed in 2015 using the National Consumer Price Index (CPI) calculated by
the Institute of National Statistics (INE) and the 2015 Power Parity Purchase (PPP) provided
223
by the World Bank. The US$2.5 poverty line in 2005 PPP terms corresponds to US$3.3 in
2015 PPP and the US$4 is equivalent to US$5.3 in 2015 PPP terms. National poverty lines are
also considered in the analysis. These lines are higher than the international poverty lines
described and they embed the equivalence scale in the household.
The vulnerability threshold used in this research came from López-Calva & Ortiz-Juarez
(2014) and The World Bank. International vulnerability thresholds in López-Calva & Ortiz-
Juarez (2014) are US$4 and US$10 2005 PPP per day. Expressed in Chilean Pesos and dollars
PPP for the year 2015 this threshold represents 1,380.9 and 2,209.5 (PPP) respectively. Table
4-3 presents the values of the poverty and vulnerability lines expressed in Chilean Pesos and
US Dollars.
Table 4-3 Poverty and vulnerability thresholds
Values per day
2005 2015
Poverty and vulnerability thresholds
US Dollar Chilean Pesos PPP 2005
Chilean Pesos CPI 2005-2015
US Dollar PPP 2015
International
Extreme 2.5 968.4 1,380.9 3.3
Moderate 4.0 1,549.4 2,209.5 5.3
Vulnerability 10.0 3,873.6 5,523.8 13.3
Middle Class 50.0 19,368.0 27,618.8 66.7
National
Extreme - - 2,159.3 5.2
Moderate - - 3,238.9 7.8
Source: Author’s elaboration from World Bank PPP Private Consumption; Social Development Ministry, Chile
Although poverty is evaluated at the individual level the information used to define it
comes from the household in which persons live. That means that poverty status evaluation
considers household characteristics such as its total income and composition. In this context, it
is important if the household is composed of two members or more and their age. As a
consequence of that, poverty lines consider the equivalence of scales described in Section 4.4.
Having in mind the importance of household composition in determining individual poverty
this research also considers the age composition of the household to evaluate exit poverty.
224
This allows us to evaluate the effectiveness of cash transfers in moving out of poverty the
households where children and older persons live. This research uses a methodological
strategy, which was followed by Bucheli (2015) that builds population groups according to the
age composition of the household. The households are classified into four groups: households
with children; households with older persons; households with children and older persons; and
households without children and older persons.
The three indicators developed by Foster-Greer-Thorbecke (FGT) (1984) are used to
measure income poverty of the household. The FGT aggregate poverty measures can be
derived from the following equation:
𝑃𝛼(𝑦, 𝑧, 𝛼) =1
𝑁∑ (
𝑧 − 𝑦𝑖
𝑧)
𝛼𝐻
𝑖=1
where 𝑧 is the poverty line, 𝑦𝑖 is the income of individual 𝑖, 𝐻 represents the people in
poverty. 𝛼 can be interpreted to reflect society’s ‘aversion to poverty’. The Poverty Headcount
(P0), also called poverty incidence, is obtained when 𝛼 = 0 . It measures the share of the
population that is in poverty81. The Poverty gap (P1) is obtained when 𝛼 = 1. It measures the
depth or intensity of poverty, the extent to which individuals fall below the poverty line (the
poverty gaps) as a proportion of the population82. The Poverty gap squared (P2) is obtained
when 𝛼 = 2. This is called poverty severity. It represents the average poverty gaps squared as a
proportion of the poverty line. It takes into account inequality between the poor.
81 (By definition 𝑥0 = 1 , so that for 𝛼 = 0, 𝑃0 = 𝐻/𝑁)
82 It reads as: the poverty gap for each household if the total poverty gap is divided equally among households
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4.8 Results
Are monetary transfers reducing poverty in Chile? We already know that the answer is yes
(Martinez-Aguilar et al., 2017). The poverty headcount is lower after fiscal interventions are
implemented and the extent of this reduction depends on the definition of incomes and
poverty lines considered. The question that remains is whether the monetary transfers’
contribution to poverty reduction is dependent on age. The following results show that it is.
4.8.1 Population
The changes in poverty rates as a consequence of fiscal interventions –direct taxes and
transfers- are presented in Figure 4-5. It can be observed that poverty headcounts increase
after direct taxes are applied and decrease after monetary transfers are provided
independently of the poverty line considered. The increase in poverty headcounts after
direct transfers and social contributions are in place is not very large because people in
poverty do not pay taxes but they pay health contributions. They must have formal
contracts to pay these kinds of social contributions. As a consequence of this, the poverty
rates of net market income are very similar to those obtained from market income. The
range of variation between poverty headcounts of market income and net market income is
between 0.3 and 0.8 percentage points depending on the poverty line considered.
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Figure 4-5 Poverty Headcount by income concepts
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
In contrast, monetary transfers reduce poverty levels in a sizable proportion. Poverty
headcounts under disposable income are lower than those obtained under market income
considering any poverty line. As expected, the reduction of the poverty headcount is higher
as a consequence of monetary transfers when lower poverty lines are considered. The
reduction of the poverty headcount by using the international extreme poverty line of
US$2.5 dollars is 55%, from 2.3% to just 1%. At the same time, poverty headcounts
decrease by 23% (3.2 percentage points) by using the national moderate poverty line and
by 42% (2.5 percentage points) by using the national extreme poverty line. The moderate
poverty headcount goes from 14.1% to 10.8% and the extreme poverty headcount moves
from 6.1% to 3.7% after fiscal intervention.
Furthermore, after direct taxes and transfers not only is the incidence of poverty lower,
but also its intensity and severity. The incidence corresponds to the results already
presented which measured the proportion of the population under the poverty line. The
intensity -measured through the poverty gap- and the severity of poverty –measured using
the poverty gap squared- decreased after fiscal intervention. As expected, the higher the
reduction, the lower the poverty line, – Figure 4-6.
2,3% 2,5% 1,0%
6,1% 6,4%
3,7%6,0% 6,3%
3,4%
14,1% 14,9%
10,8%
0,0%
5,0%
10,0%
15,0%
20,0%
Market Income Net Market Income Disposable Income
Percentage of population in poverty, by income concepts and poverty lines
US $ 2.5 PPP US $ 4 PPP
Extreme National Poverty Line Moderate National Poverty Line
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Figure 4-6 Poverty Headcount (Incidence), Poverty Gap (Intensity), Poverty Gap Squared (Severity), by income concepts
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
The fiscal mobility matrices –Table 4-4 and Table 4-5 - show the movements across
income groups after fiscal intervention. In general terms, upward economic mobility
happens after direct taxes and transfers are applied. 31.2% of people in extreme poverty
under market income move to moderate poverty. While 9.4% move to vulnerability, 2.3%
move up to the middle class. In addition, while 30% of people in moderate poverty move
to vulnerability, 3.8% move to the middle class. This indicates that 7.3% of the population
–all the cells right and above the diagonal in Table 4-4- experience upward economic
mobility and 5.4% move to groups out of poverty. As should be expected, the fiscal
intervention is not enough to move anyone to the upper middle-class group. A small
proportion of the population experience downward economic mobility after taxes and
transfers are in place. 0.3% of the population move from upper middle class to middle
class -which represents 4.8% of the upper middle class under market income. 8% of the
population move from middle class to vulnerability –1.4% of the middle class under
market income-, and a small 0.1% of the population move from vulnerability to moderate
poverty –0.7 of the group in vulnerability before fiscal intervention.
In general terms, the percentage of people living in extreme and moderate poverty
declines - from 6% to 4.3% and from 8.1% to 7.4% respectively- and the proportion in
-54,7%
-62,0%
-62,9%
-39,3%
-52,4%
-57,7%
-42,4%
-56,1%
-61,1%
-23,3%
-40,4%
-49,6%
-70,0% -60,0% -50,0% -40,0% -30,0% -20,0% -10,0% 0,0%
Incidence
Intensity
Severity
Moderate National Poverty Line Extreme National Poverty Lines
US $ 4 PPP US $ 2.5 PPP
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vulnerability and middle- class income groups increases after fiscal intervention –from
21.3% to 22.9% and from 57.8% to 59.8% respectively. Only the population in the upper
middle class decreases a little bit after taxes and transfers.
Table 4-4 Fiscal mobility matrix, from market income to disposable income, Total percentage distribution of population
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
Table 4-5 Fiscal mobility matrix, from market income to disposable income, Row percentage distribution of population
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle Class
Total
Extreme poverty 3.4% 1.9% 0.6% 0.1% 0.0% 6.0%
Moderate Poverty 0.0% 5.4% 2.4% 0.3% 0.0% 8.1%
Vulnerability 0.0% 0.1% 19.1% 2.0% 0.0% 21.3%
Middle Class 0.0% 0.0% 0.8% 56.9% 0.0% 57.8%
Upper Middle Class 0.0% 0.0% 0.0% 0.3% 6.5% 6.8%
Total 3.4% 7.4% 22.9% 59.8% 6.5% 100%
Disposable Income
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle Class
Total
Extreme poverty 57.1% 31.2% 9.4% 2.3% 0.0% 100.0%
Moderate Poverty 0.3% 66.0% 30.0% 3.8% 0.0% 100.0%
Vulnerability 0.0% 0.7% 89.8% 9.6% 0.0% 100.0%
Middle Class 0.0% 0.0% 1.4% 98.6% 0.0% 100.0%
Upper Middle Class 0.0% 0.0% 0.0% 4.8% 95.2% 100.0%
Total 3.4% 7.4% 22.9% 59.8% 6.5% 100%
Disposable Income
229
4.8.2 Children and Older persons
In Section 4.4 it was discussed that children are over-represented among people in
poverty and older persons are under-represented in poverty when equivalent total income
was considered. The official methodology for measuring poverty after taxes and transfers
clearly indicates the disparity between these two age groups. The question that remains is
whether this disparity is the same before monetary transfers and direct taxes. The answer is
no. Monetary transfers contribute to poverty reduction for all the age groups but in a
higher proportion for people over 60 years. Figure 4-7 shows the age composition of three
different groups: all population, people in poverty under market income and people in
poverty under disposable income –presenting moderate poverty levels here83.
Figure 4-7 Distribution of age groups among all population, population in poverty under market income and population in poverty under disposable income, 3 age groups
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
The two vulnerable groups under analysis are over-represented among people in
poverty before fiscal intervention. The proportion of children and older persons among
83 Figure 4-23 in the Annex N 4.11.5 disaggregates age into more groups than Figure 4-7.
26,6%36,3% 40,1%
60,8% 48,5%51,5%
12,6% 15,2% 8,5%
all population poor under market income poor under disposableincome
Proportion of individuals, by age groups and income
0 to 18 19 to 59 64 plus
230
people in poverty under market income is higher than their proportion among all the
population. 15.2% of people in moderate poverty under market income are persons over
64 years whereas they represent 12.6% of the population as a whole. This difference is
even greater for children younger than 19 years who represent 26.6% of the population but
36.3% of people in poverty under market income. In contrast, the group of people that are
neither children nor older persons –between 19 and 64 years- are under-represented
among the poor before any fiscal intervention. They represent 60.8% of the population
and 48.5% of people in poverty under market income. This evidence shows that children
and older persons represent more than half of the population in poverty under market
income even though they just represent almost 40% of the total population. These two age
groups are effectively more in poverty than the average population, showing their
vulnerability.
The picture changes when taxes and monetary transfers are considered. The age
composition of people in poverty is completely different between market and disposable
income. The group of people over 64 years decrease their participation among people in
poverty from 15.2% under market income to 8.5% under disposable income. The opposite
happens with the rest of the age groups who increase their proportion among people in
poverty. The most affected group is that composed of children who represent 36.3% of
population in poverty under market income but 40.1% of people in poverty after monetary
transfers. This evidence indicates an age bias in cash transfers which benefit elderly
persons more than children. People over 64 years exit poverty more than children as a
consequence of the benefits from the government.
The same age bias can be observed through the moderate poverty headcount reduction
by age groups after monetary transfers–Figure 4-8. The reduction of poverty incidence is
around 2 and 3 percentage points depending on the age group representing a decrease
between 13% and 22% of the poverty headcount before monetary transfers. Children are
the group with the highest poverty incidence under market income (20.4% for 0-3 years,
19.3% for 4-18 years) and remain first in the poverty rate ranking under disposable income
(17.6% for 0-3 years, 16% for 4-18 years). However, they reduce their poverty indicator
after monetary transfers, a reduction between 13% and 17% of their initial poverty rate.
231
A completely different story is experienced by people over 64 years. They experience a
diminution of 57% in their poverty incidence after monetary transfers, almost 10
percentage points less moving from 17% to 7.2%. This reduction of 9.7 percentage points
of the poverty rate after monetary transfers is almost three times the 3.3 percentage point
reduction for all the population. This reduction in the poverty rate is more than 4 times the
reduction of poverty rate of children under 3 years and 3 times of children between 4 and
18 years. Older persons are the group most benefited from monetary transfers which help
them to escape poverty in a higher proportion than the rest of the population.
Figure 4-8 Moderate Poverty headcount, by income concept and age group
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
4.8.3 Households with children and/or/without older persons
The figures presented already were all in individual terms. All the population was grouped
by their age to analyze their poverty incidence. However, their individual income per month
was obtained from the division of the total resources of the household among all its members.
People are in poverty when the household does not have enough resources to satisfy a
minimum for each inhabitant. It is not obvious the way in which they share the benefits they
20,4%
17,6%17,0%
7,2%
14,1%
10,8%
0,0%
5,0%
10,0%
15,0%
20,0%
25,0%
Market Income Disposable Income
Moderate poverty headcount, by income concept and age group
0 to 3 4 to 18 19 to 29 30 to 44
45 to 64 65 plus Population
232
receive but anyway they experience an increase in the resources available for all the inhabitants
of the household. As a consequence, it is interesting to identify the kind of household whose
exit from poverty is facilitated by monetary transfers. What is the composition by age of the
households that monetary transfers are taking out of poverty? Are households with children
and households with older people equally protected?
The households are classified in four groups: households with children; households with
older persons; households with children and older persons; and households without children
and older persons.
Figure 4-9 Distribution of individuals by household type, all population, population in poverty under market income, population in poverty under disposable income
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
54,0%
62,9%
71,3%
16,1%
16,8%
9,6%
11,5%
12,3%
10,0%
18,5%
8,0%
9,1%
0% 20% 40% 60% 80% 100%
population
poor under market income
poor under disposable income
with children and without old persons
with old persons and without children
with children and old persons
without children and without old persons
233
Figure 4-10 Distribution of households by household type, all population, population in poverty under market income, population in poverty under disposable income
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
The majority of the population (54%) lives in households with children and without old
persons–Figure 4-9. This kind of household represents 42.3% of total households–Figure 4-10.
Households composed of older persons but without children represent almost 23.4% of total
households but 16.1% of the population. This reflects the fact that on average households with
older persons are smaller than households with children. Many older persons live alone or with
a partner. Households with children are on average formed by one or two parents and siblings.
This is important in analyzing exit poverty. It is possible that monetary transfers are more
effective in reducing poverty among older persons because they share the new resources with
fewer people. This will be explored later.
At the same time, a minority of households are those composed by children and older
persons at the same time (7.3%). This shows that children and grandparents usually do not live
together. This characteristic restricts the possibility of reducing poverty levels of children and
elders at the same time by just targeting only one group of them. At the same time, there is an
important proportion of households where there are neither children nor older persons (27%).
As expected, the distribution of these four kinds of households is different among all the
households in the population, households in poverty under market income and those in
42,3%
49,7%
59,9%
23,4%
28,0%
16,6%
7,3%
8,8%
7,5%
27,0%
13,5%
16,0%
0% 20% 40% 60% 80% 100%
population
poor under market income
poor under disposable income
with children and without old persons
with old persons and without children
with children and old persons
without children and without old persons
234
poverty under disposable income. Households with children and no older persons are over-
represented among households in poverty under market income and even more among
households in poverty under disposable income. Furthermore, individuals living in those
households represent the majority of people in poverty under market income -62.9%- and
under disposable income -71.3%. This indicates that the major incidence of poverty is in
households where children do live and older persons do not, and this is more pronounced
after monetary transfers.
A first approximation to compare the importance of monetary transfers over the income
of the four groups of households in poverty is to observe their market and disposable income
distributions. The way in which these distributions change reflects the relative importance of
monetary transfers for households in poverty. It can be observed from Figures 4-11 and 4-12
that income distributions change their location and their shape after monetary transfers are
received. The income distributions for the four groups of households show a rightward shift,
meaning an increase in the median of income. The changes in the shape of the income
distributions show a more uni-modal income distribution under disposable income than
market income. However, the movements are more intense for some groups than others. The
rightward shift of the disposable income distribution is more pronounced for households with
older persons. The density of individuals living in this kind of household moves from being
the most concentrated on the left of the income distributions to being the most concentrated
on the right.
Figure 4-11 Kernel density of market income, by type of household
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
0
5.0
00e
-06
.000
01
.000
01
5.0
00
02
De
nsity
0 50000 100000 150000market income
with children with elders
with children and elders without children and elders
235
Figure 4-12 Kernel density of disposable income, by type of household
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
The TIP curves are a useful graphical instrument that allows the poverty levels of these
four groups of households to be ranked without the specification of a proper poverty line. The
TIP curve is a plot that shows the cumulative population proportion in the x axis and the
cumulative per capita poverty gap in the y axis. The gap is normalized and is defined only for
people below the poverty line. It represents the difference between income and the maximum
poverty line. The TIP curve shows the gap ordered from highest to lowest. The intensity of
poverty is represented by the height of the TIP curve. The height is the average poverty gap
for the maximum poverty line. The inequality among people in poverty is represented through
the curvature of the TIP curve. TIP curves have the advantage of representing the incidence,
intensity and inequality for all lines below the maximum line.
Figure 4-13 shows the TIP curve of market income by household groups with the
maximum poverty line set at the official moderate poverty line. The highest levels of incidence,
intensity and severity of poverty are experienced by households with elders. The group
corresponds to households with children and elders followed closely by households with
children but no elders. The lower levels of incidence, intensity and severity of poverty are
experienced by households without elders and children. This reflects the fact that households
with children -and/or elders- live more in poverty than households just composed of adults
older than 64 years.
0
5.0
00e
-06 .0
00
01
.000
01
5.0
00
02
.000
02
5D
ensity
0 50000 100000 150000disposable income
with children with elders
with children and elders without children and elders
236
Figure 4-13 TIP curve of market income by household type, official moderate poverty line
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Figure 4-14 TIP curve of net market income by household type, official moderate poverty line
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Figure 4-15 TIP curve of disposable income by household type, official moderate poverty line
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
0
.02
.04
.06
.08
0 .1 .2 .3 .4Cumulative proportion of population
children elder childen & elder no childen no elder
TIP curves
0
.02
.04
.06
.08
0 .1 .2 .3 .4Cumulative proportion of population
children elder childen & elder no childen no elder
TIP curves
0
.01
.02
.03
.04
.05
0 .1 .2 .3 .4Cumulative proportion of population
children elder childen & elder no childen no elder
TIP curves
237
The TIP curves for market (Fig. 4-13) and net market income (Fig. 4-14) are very
similar because the majority of people in poverty do not pay taxes and social security
contributions. However, the TIP curve for disposable income (Fig 4-15) is completely
different to the previous two curves changing the order of dominance of the different
household groups. The provision of cash transfers moves households with elders from
being the most in poverty to being the least in poverty. Households with elders share, after
monetary transfers, the same incidence of poverty as households without elders and
children. On the contrary, households with children become the most in poverty compared
with the other groups of household composition.
The different trajectories of poverty reduction after cash transfers by household
composition are presented in Figure 4-16 –for the national extreme poverty line- and
Figure 4-17 –for the national moderate poverty line. It is clear from Figure 4-16 that the
reduction of the poverty headcount for households with older persons and no children is
more pronounced than the average. The 8.1% of people living in this kind of household
were in extreme poverty before monetary transfers. This percentage decreases to just 1.7%
after monetary transfers representing half of the average extreme poverty rate of 3.4%.
Households with elders move from being the most in extreme poverty under market
income to the least in extreme poverty under disposable income after fiscal intervention.
Figure 4-16 Percentage of population in poverty, by income concept and household composition, National extreme poverty line
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
6,4%
4,7%
8,1%
1,7%
2,7%
2,0%
6,0%
3,4%
0,0%
1,0%
2,0%
3,0%
4,0%
5,0%
6,0%
7,0%
8,0%
9,0%
Market Income Disposable Income
with children with elders
with children and elders without children and elders
All the population
238
Figure 4-17 Percentage of population in poverty, by income concept and household composition, National moderate poverty line
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
In the case of moderate poverty the picture is similar. The highest decrease of poverty
after monetary transfers is experienced by individuals of households with elders and no
children. They move from 14.8% of poverty rate under market income –just above the
average poverty rate of 14%- to far below the average poverty rate under disposable
income -6.4%. This reduction of 8.3 percentage points after cash transfers is much higher
than the 2.1 percentage point reduction for individuals living in households with children
and without elders. However, it has already been shown that the proportion of individuals
living in households with elders and without children was much lower (16%) than
households with children and without elders (52%).
The following fiscal mobility matrices show that the movements across income groups
as a consequence of fiscal intervention also depend on the kind of household individuals
live in.
16,5%
14,3%14,8%
6,4%6,1%
5,3%
0,0%
2,0%
4,0%
6,0%
8,0%
10,0%
12,0%
14,0%
16,0%
18,0%
Market Income Disposable Income
with children with elders
with children and elders without children and elders
All the population
239
Table 4-6 Fiscal mobility matrix, from market income to disposable income, Row percentage distribution of people living in households with children and no older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Table 4-7 Fiscal mobility matrix, from market income to disposable income, Total percentage distribution of people living in households with children and no older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
It can be observed that households with children and without older persons remain in
a higher proportion in the same income group after fiscal intervention than households
with older persons but without children –Table 4-6 and Table 4-7. Households with older
people move to higher income groups in a higher proportion that the rest of the
household groups after fiscal intervention. Table 4-8 and Table 4-9 show the lower
proportion of people in households with children moving to higher income groups than
households with older people. The Annex 4.11.7 has the fiscal mobility matrices for the
other two kinds of households.
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 71.9% 26.7% 1.3% 0.0% 0.0% 100%
Moderate Poverty 0.3% 77.1% 22.5% 0.0% 0.0% 100%
Vulnerability 0.0% 0.8% 96.0% 3.2% 0.0% 100%
Middle Class 0.0% 0.0% 2.1% 97.9% 0.0% 100%
Upper Middle Class 0.0% 0.0% 0.0% 5.3% 94.7% 100%
Total 4.7% 9.7% 29.0% 52.1% 4.6% 100%
Row percentage distribution of population
Disposable Income
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 4.6% 1.7% 0.1% 0.0% 0.0% 6%
Moderate Poverty 0.0% 7.7% 2.3% 0.0% 0.0% 10%
Vulnerability 0.0% 0.2% 25.5% 0.8% 0.0% 27%
Middle Class 0.0% 0.0% 1.1% 51.0% 0.0% 52%
Upper Middle Class 0.0% 0.0% 0.0% 0.3% 4.6% 5%
Total 4.7% 9.7% 29.0% 52.1% 4.6% 100%
Total percentage distribution of population
Disposable Income
240
Table 4-8 Fiscal mobility matrix, from market income to disposable income, Row percentage distribution of people living in households with older persons and no children
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Table 4-9 Fiscal mobility matrix, from market income to disposable income, Total percentage distribution of people living in households with older persons and no children
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Table 4-10 summarizes poverty and exit poverty rates considering the four poverty
lines. As expected, the higher the poverty exit the lower the poverty line. As expected from
the evidence so far, it is observed that the poverty exit is higher if households have an
older person among their members.
Let us consider the international poverty line first. The average poverty headcount is
2.3% under market income, declining to just 1% under disposable income when the
extreme international poverty line is used. Public benefits are effective in reducing the
population living in extreme poverty: the exit poverty rate is equal to 54.6%. This means
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 21.6% 37.1% 32.1% 9.3% 0.0% 100%
Moderate Poverty 0.0% 23.6% 51.1% 25.3% 0.0% 100%
Vulnerability 0.0% 0.2% 52.1% 47.7% 0.0% 100%
Middle Class 0.0% 0.0% 0.3% 99.6% 0.1% 100%
Upper Middle Class 0.0% 0.0% 0.0% 3.9% 96.1% 100%
Total 1.7% 4.6% 12.6% 74.3% 6.8% 100%
Row percentage distribution of population
Disposable Income
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 1.7% 3.0% 2.6% 0.7% 0.0% 8%
Moderate Poverty 0.0% 1.6% 3.4% 1.7% 0.0% 7%
Vulnerability 0.0% 0.0% 6.4% 5.8% 0.0% 12%
Middle Class 0.0% 0.0% 0.2% 65.8% 0.0% 66%
Upper Middle Class 0.0% 0.0% 0.0% 0.3% 6.7% 7%
Total 1.7% 4.6% 12.6% 74.3% 6.7% 100%
Total percentage distribution of population
Disposable Income
241
that cash transfers contribute to reducing extreme poverty –by international standards- by
more than half. Again, it is observed that public benefits help households with elders more
than households without any them. These differences in exit poverty rates among
household groups remain for all the poverty lines considered.
The poverty headcount, considering the moderate international poverty line, is 6.1%
under market income and 3.7% under disposable income. That means that monetary
transfers contribute to a poverty exit rate of 39.7%. Similar average numbers are obtained
when the national extreme poverty line is considered. This happens because both lines
expressed in Chilean pesos are very close. The average exit poverty rate considering the
national extreme poverty line is 42.9%. Again, the exit poverty rates differ among
household groups. The 28% of people living in households with children leave extreme
poverty as a consequence of monetary transfers. In contrast, the 78.4% of people living in
extreme poor households with elders get out of poverty as a consequence of monetary
transfers. The older persons contribute to a higher exit poverty rate even when there are
children in the household. Around 61% of individuals living in extreme poor households
with elders and children get out of poverty after monetary transfers.
The exit poverty differences among household types remains under the national
moderate poverty line. 14.1% of the population is in moderate poverty under market
income and this percentage decreased to 10.8% under disposable income. The capacity of
monetary transfers to reduce the poverty headcount is lower –the exit rate equal to 24.3%-
because the poverty line is higher. However, the exit poverty rate is still higher for
households with elders (56.8%) and elders and children (37.4%) than for households with
children and no elders (14.3%) and no children and no elders (14.8%).
The evidence shows that monetary transfers contribute to poverty exit in a higher
proportion in the group of people over 64 years and the households where they live. This
means that the effectiveness of the cash transfers on poverty exit depends on the age
composition of the household. The question that emerges is whether households with
elders are receiving proportionally more monetary transfers than the rest of the household
or the amount that they are receiving is bigger. The decomposition of the poverty exit rate
presented in equation (1) allows us to separate the effect of the programme’s coverage and
242
the importance of the amount of the cash transfer for being taken out of poverty, given
that the individual is covered. This decomposition is presented in the next subsection to try
to answer whether it is the coverage or the amount of the benefit that plays the more
important role in the exit poverty rates.
Table 4-10 Poverty Rate for four poverty lines, composition of individuals in poverty and Exit Rate by Household Groups.
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Households with children 61.0% 63.8%
0.025 0.026 0.015 0.015 0.413 0.417 0.072 0.072 0.053 0.053 0.264 0.266
Households with elders 18.2% 16.6%
0.025 0.026 0.002 0.002 0.925 0.929 0.062 0.063 0.011 0.011 0.821 0.825
Households with children and elders 13.7% 13.7%
0.027 0.027 0.006 0.007 0.754 0.761 0.072 0.073 0.034 0.034 0.531 0.536
Households without children and elders 7.2% 6.0%
0.009 0.009 0.006 0.006 0.293 0.304 0.020 0.020 0.013 0.014 0.318 0.325
All the population 100.0% 100.0%
0.022 0.023 0.010 0.010 0.545 0.548 0.061 0.061 0.037 0.037 0.396 0.398
Households with children 58.1% 62.9%
0.064 0.064 0.046 0.047 0.279 0.282 0.164 0.165 0.143 0.143 0.142 0.143
Households with elders 21.7% 16.8%
0.080 0.081 0.017 0.018 0.783 0.786 0.147 0.148 0.064 0.065 0.566 0.569
Households with children and elders 11.8% 12.3%
0.061 0.062 0.025 0.025 0.609 0.614 0.150 0.151 0.094 0.095 0.373 0.376
Households without children and elders 8.4% 8.0%
0.027 0.020 0.020 0.275 0.281 0.061 0.061 0.053 0.053 0.146 0.149
All the population 100.0% 100.0%
0.060 0.060 0.034 0.035 0.428 0.430 0.141 0.141 0.108 0.108 0.243 0.244
10.8%
Population Groups
6.1% 2.5% 61.2% 15.1% 9.5% 37.4%
8.1% 1.7% 78.4% 14.8% 6.4% 56.8%
6.4% 4.7% 28.1% 16.5% 14.3% 14.3%
Poverty Rate Comp. poor
under market
income
Exit Rate Poverty Rate Comp. poor
under market
income
Exit Rate
Market
Income
Disposable
Income
Market
Income
Disposable
Income
US$ 2.5
National Extreme National Moderate
2.3% 1.0% 54.6% 6.1% 3.7% 39.7%
0.9% 29.9% 2.0% 1.4% 32.2%
2.7% 75.7% 7.3% 3.4% 53.4%
2.5% 92.7% 6.3% 1.1% 82.3%
2.5% 41.5% 7.2% 5.3% 26.5%
Market
Income
Disposable
Income
Market
Income
Disposable
Income
Exit RatePoverty Rate Comp. poor
under market
income
Exit Rate Poverty Rate Comp. poor
under market
income
0.6%
0.7%
0.2%
1.5%
US$ 4
6.0% 3.4% 42.9% 14.1% 24.3%
5.3%2.7% 2.0% 27.8% 6.1% 14.8%
4.8.3.1 The role of coverage and amount of cash transfers in the exit from poverty
We have already seen that poverty exit rates decrease when poverty lines increase. The
poverty exit rate is 54.6% when the international extreme poverty line is applied, and
decreases to 39.7% for the international moderate poverty line, and moves from 42.9% for
the national extreme poverty line to 24.3% for the national moderate poverty line. Higher
poverty lines make the capacity of monetary transfers to reduce poverty rates more
difficult. This may be happening because the coverage of people in poverty is lower –there
are more people in poverty to target- or because the amount of benefit is not enough to
move household income above the higher poverty line –it is more difficult to close the
poverty gap-.
The probability of coverage –the probability that an individual in poverty under market
income will receive monetary transfers- is very similar for all the poverty lines: between
82% and 85% depending on the line taken, column P(Ci), Table 4-11. People in poverty
under market income have a high probability of receiving public benefit for all the poverty
lines but the probability of leaving poverty as a consequence of the transfer is lower while
poverty lines are higher. The probability of living in poverty conditional on being covered
ranges from 65% for the international extreme poverty line to 29.7% for the national
moderate poverty line –the highest considered. This evidence suggests that the average
amount of transfers received by people in poverty lift half of them out of extreme poverty
and almost 30% out of moderate poverty. From another angle, this also means that 70% of
the individuals in poverty receiving benefits are not able to exit moderate poverty.
However, the picture again depends on the age composition of the household.
Table 4-11 Poverty Exit Rate, Probability of being covered and probability of leaving poverty given coverage, by households groups
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Households with children
0.413 0.417 0.827 0.830 0.499 0.503 0.264 0.266 0.835 0.837 0.315 0.318 0.279 0.282 0.829 0.831 0.337 0.339 0.142 0.143 0.815 0.816 0.175 0.176
Households with elders
0.925 0.929 0.962 0.964 0.962 0.964 0.821 0.825 0.963 0.965 0.852 0.855 0.783 0.786 0.962 0.963 0.813 0.816 0.566 0.569 0.933 0.935 0.606 0.609
Households with children and elders
0.754 0.761 0.975 0.977 0.773 0.780 0.531 0.536 0.951 0.953 0.558 0.563 0.609 0.614 0.956 0.958 0.636 0.642 0.373 0.376 0.932 0.934 0.399 0.403
Households without children and elders
0.293 0.304 0.372 0.383 0.784 0.799 0.318 0.325 0.458 0.466 0.691 0.701 0.275 0.281 0.467 0.474 0.587 0.597 0.146 0.149 0.426 0.430 0.341 0.348
All the population
0.545 0.548 0.839 0.841 0.649 0.652 0.396 0.398 0.850 0.851 0.466 0.468 0.428 0.430 0.843 0.844 0.507 0.509 0.243 0.244 0.819 0.819 0.296 0.297
93.4% 60.8%
93.3% 40.1%
14.8% 42.8% 34.5%27.8% 47.0% 59.2%
14.3%
96.4% 85.3%
28.1%
78.4% 96.2% 81.5%
61.2% 95.7% 63.9% 37.4%
56.8%
53.4% 95.2% 56.1%
32.2% 46.2% 69.6%37.7% 79.1%
41.5% 82.8% 50.1%
92.7% 96.3% 96.3%
Poverty Lines
US$ 2.5
P(Em,d/
Ci)
P(Em,d)
National Extreme
P(Em,d) P(Ci) P(Em,d/
Ci)
US$ 4
P(Em,d) P(Ci) P(Em,d/
Ci)
81.9% 29.7%24.3%42.9% 84.3% 50.8%
National Moderate
P(Em,d) P(Ci) P(Em,d/
Ci)
83.0% 33.8% 81.6% 17.5%
46.7%
Population Groups
85.1%
P(Ci)
54.6% 84.0% 65.0% 39.7%
26.5% 83.6% 31.6%
82.3%
75.7% 97.6% 77.6%
29.9%
Although the average coverage of people in poverty under market income is high,
there are differences among the different groups of households. The least covered are the
individuals living in households without children and elders who are from 38% to 47%
covered depending on the poverty line. They represent a low proportion of individuals in
poverty –between 7% and 8% depending on the poverty line- who are far from being fully
covered by monetary transfers.
A higher coverage by monetary transfers is experienced by individuals who live in
households with children: around 83% of them are covered. Considering that they
represent more than 60% of people in poverty, the evidence shows that the biggest group
in poverty is highly covered by cash transfers. However, children are even more likely to be
covered when they are living in households with elders as well. This happens because
elders benefit from more extensive coverage than children. Households with elders and no
children and households with both of them have a higher coverage by monetary transfers
than households without older persons. Around 96% of individuals in extreme poverty
living in households with elders are covered by public benefits and 93.4% of them if
moderate poverty is considered. This shows that the majority of monetary transfers are
focused on households with children or elders being recognized as vulnerable groups with
a higher probability of being in poverty.
In addition, the probability of exiting poverty conditional on being covered is also
higher for households with older persons. That means that elders not only have a higher
probability of receiving cash transfers but also those transfers are more effective in exiting
poverty. People living in households with elders have a probability of exiting poverty, given
being covered, equal to 96.3% for the international extreme poverty line, declining to
around 81% for the extreme poverty line and 61% for the national moderate poverty line.
The probability of leaving poverty conditional on being covered decreases considerably
with higher poverty lines but coverage, as we saw above, does not change too much
depending on poverty lines. This suggests that the decrease in the exit poverty rate is not
explained by a lower coverage of elders in poverty but monetary transfers lose the capacity
to lift them out of poverty when poverty rates are higher.
247
In the opposite scenario are individuals living in households with children in poverty
who have a probability of leaving poverty conditional on being covered that ranges from
50% for the international extreme poverty line to 17.5% for the national moderate poverty
line. These probabilities are much lower than those confronted by the rest of the
households and also lower than the average that range between 65% and 29.7% depending
on the poverty line considered.
Even though people living in households without children and elders are the lowest
covered by benefits they confront a higher probability of leaving poverty when they are
covered than people living in households with children and no elders. Let us see the
differences considering the national moderate poverty line. 34.5% of the 42.8% of
households without children and elders covered by cash transfers leave poverty as a
consequence of receiving benefits. This is completely different from the 17.5% of the
81.6% of households with children and no elders covered that leave poverty. This makes
them to have very similar poverty exit rates –between 14.3 and 14.8 percent- but with a
different story behind. This suggests the lower effectiveness of cash transfers in
households with children and no older persons than the rest of households.
This evidence shows that some households are more covered by monetary transfers
than others. In particular, households with elders are more covered by monetary transfers
than the rest. But there are also some households with a higher probability of leaving
poverty as a consequence of the monetary transfers that they receive. Again, households
with elders are in this group but also households without children and elders. This higher
probability can be arising for different reasons. First, it is possible that the number of
household members varies among household groups. Households with a higher probability
of leaving poverty can be smaller in size than the rest of the households covered by cash
transfers. In that case, monetary transfers do not need to be shared among many
inhabitants, increasing the income per person in a higher proportion and hence the
effectiveness of the cash transfers to move them out of poverty. A second reason can be
that poverty gaps are different among the household groups. Households with a higher
probability of leaving poverty can be closer to the poverty line making the monetary
transfers more effective in helping to lift them out of poverty. A third argument is that the
amount of monetary transfers received by the different groups of households can be
248
different. Again, these kinds of households can be receiving higher monetary transfers than
the rest of the individuals covered. In the following section, each argument is explored in
detail.
4.8.3.1.1 Household members
The smaller size of some households can explain the fact that they are exiting poverty
in a higher proportion as a consequence of monetary transfers. Under this hypothesis,
monetary transfers are more effective in exiting poverty because they are shared among
fewer household members increasing the per capita income proportionally more than the
average. This is true but it is not the most important thing to explain the higher
effectiveness of monetary transfers in contributing to exit poverty.
Households with older people have a different household size depending on whether
there are children or not. Households with elders and children are the biggest in size
having on average 5 members -Figure 4-18- Households with elders but no children are the
smallest in size being formed by 2.2 inhabitants on average, well below the average
household size of 3.2 inhabitants in the population.
Figure 4-18 Household size, all households, by household type
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
0,0
2,0
4,0
6,0
8,0
10,0
12,0
14,0
16,0
18,0
withchildren no
elders
with eldersno children
withchildren and
elders
withoutchildren and
elders
All thepopulation
Mean
sd
min
max
249
The composition of these two kinds of households is also different. Households with
children and older persons are the biggest in size because they are households
comprised of extended families. The majority of the households where children and older
persons live together are formed by the nuclear family –mother and/or father and
children- and some others who do not belong to the core family, such as grandparents,
other relatives or non-relatives. In more than 96% of the households with elders and
children live extended families –Table 4-12. This percentage is much lower in households
with elders and no children where extended families just represent around 25%. This kind
of household are highly single -25.8%- or comprised of nuclear families with one or two
parents.
Table 4-12 Household type by population groups, all households, Row percentage
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Single households are even more important among households with elders who exit
poverty –Table 4-13. Households with elders and no children who exit poverty were more
single and less extended than the same kind of households among all the population. The
same happens with households without children and elders that exit poverty as a
consequence of monetary transfers. A higher proportion of households that exit poverty
are single person households and a lower proportion are those formed by extended
families. This suggests that household size matters because there is an over-representation
of single households among those who left poverty as a consequence of monetary
transfers.
single nuclear two-
parent
extended
two-parent
nuclear single-
parent
extended
single-parent
Total
Households with children 0.0% 48.9% 21.7% 18.5% 10.9% 100%
Households with elders 25.8% 38.2% 9.0% 12.2% 14.8% 100%
Households with children and elders 0.0% 3.1% 54.0% 0.4% 42.6% 100%
Households without children and elders 27.9% 44.2% 4.6% 15.0% 8.3% 100%
All the population 13.6% 41.8% 16.5% 14.8% 13.4% 100%
Population Groups
Household type
250
Table 4-13 Household type by population groups, exit poverty households
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
This fact is corroborated when the household size of households that exit poverty is
compared with household sizes in the population Figure 4-19. The majority of households
who have exited poverty –with the exception of households with children and no elders-
are smaller in size than the average. This suggests that having fewer household members
affects the effectiveness of monetary transfers in reducing poverty.
Figure 4-19 Household size, by household types, all households, households in poverty and exit poverty households
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
However, the smaller household size is not all that lies behind a higher probability of
leaving poverty. The household size of households with children and no elders and
households with both of them are very similar especially when households in poverty
single nuclear two-
parent
extended
two-parent
nuclear single-
parent
extended
single-parent
Total
Households with children 0.0% 41.2% 21.4% 22.8% 14.5% 100%
Households with elders 30.0% 46.5% 6.9% 7.8% 8.8% 100%
Households with children and elders 0.0% 2.5% 50.2% 0.9% 46.5% 100%
Households without children and elders 41.6% 33.6% 2.4% 14.3% 8.0% 100%
All the population 20.1% 39.1% 15.1% 11.1% 14.6% 100%
Population Groups
Household type
0,0
1,0
2,0
3,0
4,0
5,0
6,0
All households Households inpoverty undermarket income
Exit povertyhousehold
with children no elders
with elders no children
with children and elders
without children andelders
All the population
251
under market income are considered. However, their exit poverty rates are very different -
17.5% and 40.1% under the moderate poverty line. The difference in household size
between these two kinds of households shrinks -4.2 and 4.6- considering just households
in poverty. The difference is even smaller among households who exit poverty as a
consequence of monetary transfers -4.3 and 4.5. This indicates that the higher probability
of leaving poverty of households with children and elders than households with children
and no elders is not because of differences in their household size. On average they need
to share the cash transfers among the same numbers of members. However, households
with elders and children are receiving more effective monetary transfers to exit poverty.
This can mean that they receive a higher amount of cash transfers and/or they are closer to
the poverty line. This will be explored in the following subsections.
4.8.3.1.2 Poverty Gap
Another possible explanation of a higher probability of leaving poverty as a
consequence of monetary transfers is a lower poverty gap. Households with a higher
probability of leaving poverty can be closer to the poverty line making the monetary
transfer more effective in helping to lift them out of poverty. The evidence presented here
does not support this argument.
It is observed that the intensity of poverty is different for the four groups of people.
The poverty gap before and after monetary transfers considering the national moderate
poverty line and the extreme poverty line are presented in Figure 4-20 and Figure 4-21
respectively. The highest intensity of poverty under market income -and both poverty
lines- belongs to individuals living in households with older persons and without children.
This is the same group of individuals with the lowest intensity of poverty under disposable
income –after fiscal intervention- and with the highest probability of leaving poverty as a
consequence of monetary transfers. This shows that a lower poverty gap is not behind a
higher probability of leaving poverty conditional on being covered by monetary transfers.
In addition, individuals living in these households -with elders and no children-
experience the highest reduction in their poverty intensity after cash transfers. They are
252
followed by individuals in households with elders and children. This indicates that
individuals in households with elders –with or without children- benefit most from
monetary transfers reducing the incidence and intensity of their poverty in a higher
proportion than the rest of the population.
Figure 4-20 Poverty gap national moderate poverty line, by type of household and income
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
Figure 4-21 Poverty gap national extreme poverty line, by type of household and income
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
0,051
0,038
0,057
0,016
0,046
0,029
0,000
0,010
0,020
0,030
0,040
0,050
0,060
0,070
Market Income Disposable Income
with children with elders
with children and elders without children and elders
All the population
0,021
0,013
0,030
0,004
0,020
0,010
0,000
0,005
0,010
0,015
0,020
0,025
0,030
0,035
Market Income Disposable Income
with children with elders
with children and elders without children and elders
All the population
253
This evidence shows that the poverty gap is not the explanation for the differences in
poverty exit rates among groups. The group of people who live in households with elders
has the highest poverty gap under market income but also the highest poverty exit rate
after monetary transfers. In the opposite, is the group who live with children. They are the
most important group of people in poverty under market income and they are less
intensely poor than the rest of the groups. However, they are the group with the lowest
poverty exit rate after monetary transfers.
The evidence so far suggests that the amount of monetary transfers plays a role in the
differences in exit poverty rate among groups.
4.8.3.2 The role of the amount and kind of monetary transfers
Taking into account that a lower household size and a lower intensity of poverty are
not the main drivers of the higher probability of leaving poverty that some households
show, the kind and amount of monetary transfers appear the most feasible explanation. In
order to explore this, the cash transfers were grouped in benefits for pensioners, for
families, for workers and others benefits. The detail of every monetary transfer in each
group was presented in Table 4-1 in Section 4.7. There are elaborated two groups of
benefits: one with 5 and the other with 10 possible combinations of benefits. Table 4-14
presents the distribution of individuals in each group. In addition, it presents the
distribution of individuals in each group distinguishing between all the individuals in the
population and those in poverty under market income.
254
Table 4-14 Benefits groups, all individuals and individuals in moderate poverty under market income
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
The majority of individuals that receive cash transfers from the government live in
households that do receive benefits for families and for families in extreme poverty and do
not receive pensions –Group II in Table 4-14. 36.4% of all individuals are in this group
and 3.2% receive in addition some benefits for workers or others. They represent in
conjunction almost 39.6% of the population and 56.8% of the population in poverty
before monetary transfers. This indicates that the majority of people in poverty receive just
cash transfers targeted to children and working age people instead of older persons.
In the opposite scenario, there is a group that receives just pensions and no other
benefits from the government –Group I in Table 4-14. They represent 7.1% of the
population and 9.8% of people in poverty before fiscal intervention. A small proportion
inside this group receives also benefits for workers and others –Group 2 in Table 4-14.
7.8% of the population and 14.4% of people in poverty receive a combination of
benefits from the government –Group IV. They receive benefits for families and benefits
for pensioners and in some cases, benefits for workers and/or other benefits. At the same
Benefits
for
pensioner
s
Benefits
for
families
and
Benefits
for
workers
Other
benefits
5 groups 10 groupsDistribution
5 groups
Distribution
10 groups
Distribution
5 groups
Distribution
10 groups
I 1 Yes No No No 6.8% 7.1% 9.4% 9.8%
2 Yes No 0.3% 0.4%
II 3 No Yes No No 36.4% 39.6% 53.5% 56.8%
4 No Yes 3.2% 3.3%
III 5 No No Yes No 0.7% 1.3% 0.4% 0.9%
6 No No No Yes 0.6% 0.5%
7 No No Yes Yes 0.0% 0.0%
IV 8 Yes Yes No No 7.1% 7.8% 13.4% 14.4%
9 Yes Yes 0.6% 1.0%
V 10 No No No No 44.3% 44.3% 18.1% 18.1%
Total 100% 100% 100% 100%
Population Groups
Yes in one of these
Yes in one of these
Yes in one of these
Social Assistance Programmes
All population People in poverty
255
time, a small proportion of people in poverty under market income receive benefits for
workers and/or other benefits; and no benefits for families and benefits for pensioners –
Group IV. This shows that the majority of people in poverty -81%- receive benefits for
families and/or benefits for pensioners.
A not small 18.1% of people in poverty do not receive any of these government
benefits that represent 44.3% of the population.
In order to see the importance of these groups of benefits in reducing poverty, their
poverty exit rate, P(Em,d), is presented in Table 4-15. In addition, the poverty exit rate is
decomposed as was presented in equation (3) between the probability that a person in
poverty is covered by a program of the group i -P(Ci)- and the probability that those
covered by this group of benefits leave poverty –under both extreme and moderate
poverty lines.
It is observed that the highest contribution to the total exit poverty rate is provided by
the Group II of benefits composed of benefits for families, eventually benefits for workers
and others but no pensions. This is mainly because these benefits reach the majority of
people in poverty -53.6% in extreme poverty and 56.8% in moderate poverty. Among the
Group II is the subgroup 3 composed just by benefits for families that contribute to this
high coverage. Individuals who are receiving benefits for families and benefits for workers
or other benefits are a smaller proportion -2.6%. However, they have a higher probability
of leaving poverty than individuals just receiving benefits for families. In this case, the
combination of benefits increases the probability of exiting poverty.
A higher effectiveness of benefits for reducing poverty is observed also in the
combination of benefits in Group IV. The probability of leaving poverty conditional on
receiving benefits for families and pensioners is higher than when just benefits for families
are received. The coverage of this combination of benefits is lower than the coverage of
Group II but is much more effective in reducing poverty. This indicates that the benefits
for pensioners make the difference between these two groups increasing considerably the
probability of leaving poverty as a consequence of benefits.
Table 4-15 Decomposition of the exit rate from poverty, national extreme and moderate poverty lines, 5 and 10 groups of programmes
All the population
0.428 0.430 0.843 0.844 0.507 0.509 0.243 0.244 0.819 0.819 0.296 0.297
I
0.091 0.092 0.125 0.126 0.729 0.734 0.048 0.049 0.098 0.099 0.494 0.498
1
0.086 0.087 0.119 0.120 0.720 0.725 0.046 0.046 0.094 0.095 0.484 0.488
2
0.005 0.005 0.005 0.006 0.913 0.927 0.003 0.003 0.004 0.004 0.712 0.729
II
0.189 0.190 0.535 0.537 0.352 0.355 0.101 0.102 0.567 0.569 0.178 0.179
3
0.174 0.175 0.509 0.511 0.341 0.343 0.088 0.089 0.534 0.535 0.164 0.166
4
0.015 0.015 0.025 0.026 0.576 0.588 0.013 0.013 0.033 0.034 0.392 0.399
III
0.005 0.005 0.008 0.008 0.616 0.637 0.003 0.003 0.009 0.009 0.362 0.375
5
0.000 0.000 0.002 0.002 0.065 0.087 0.000 0.000 0.004 0.004 0.066 0.076
6
0.005 0.005 0.005 0.006 0.839 0.858 0.003 0.003 0.005 0.005 0.619 0.636
7
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
IV
0.134 0.135 0.174 0.175 0.769 0.772 0.077 0.078 0.144 0.144 0.538 0.541
8
0.125 0.126 0.163 0.165 0.761 0.765 0.070 0.071 0.134 0.134 0.525 0.528
9
0.009 0.009 0.010 0.010 0.877 0.889 0.007 0.007 0.010 0.010 0.712 0.723
V
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
0.9% 1.0% 88.3% 0.7% 1.0% 71.7%
0.0% 15.7% 0.0% 0.0% 18.1% 0.0%
13.4% 17.4% 77.0% 7.8% 14.4% 54.0%
12.5% 16.4% 76.3% 7.1% 13.4% 52.6%
0.5% 0.6% 84.9% 0.3% 0.5% 62.8%
0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
0.5% 0.8% 62.7% 0.3% 0.9% 36.9%
0.0% 0.2% 7.6% 0.0% 0.4% 7.1%
17.4% 51.0% 34.2% 8.8% 53.5% 16.5%
1.5% 2.6% 58.2% 1.3% 3.3% 39.6%
0.5% 0.6% 92.0% 0.3% 0.4% 72.0%
18.9% 53.6% 35.3% 10.1% 56.8% 17.9%
4.9% 9.8% 49.6%
8.7% 12.0% 72.3% 4.6% 9.4% 48.6%
Poverty Lines
Population Groups
National Extreme National Moderate
P(Em,d) P(Ci) P(Em,d/Ci) P(Em,d) P(Ci) P(Em,d/Ci)
0.429 0.843 0.508 0.243 0.819 0.297
9.2% 12.5% 73.2%
The importance for pensions to exit poverty is also observed in Group I and in group
1 in particular. The 48.6% of people receiving just pensions –who represent 9.4% of
people in moderate poverty- exit poverty as a consequence of this benefit. This percentage
is greater for extreme poverty: the 72.3% of people in extreme poverty exit poverty as a
consequence of benefits for pensioners –group 1. This shows that the higher effectiveness
of monetary transfers in exiting poverty came mainly from benefits for pensioners.
Table 4-16 shows the same decomposition of the poverty exit rate by groups of
benefits but also by groups of households. This allows us to observe which groups of
benefits the different households receive and their relative importance in helping them to
exit moderate poverty.
People living in households with children and no elders mostly receive benefits for
families and benefits for workers and/or other benefits. Although 80% of them receive
these benefits only 16.9% leave poverty because of them. The cash transfers that they
receive are not enough to lift the average size household of 4.2 members out of poverty.
They are not very far from the poverty line but the amount that they receive appears to be
insufficient to help the majority of them to exit poverty.
The opposite happens in households with older persons but no children. They are little
covered just by benefits for families. They are more covered by benefits for pensioners -
44.8%- or by benefits for families and for pensioners -40.7%. In their case, the probability
of exiting poverty as a consequence of these benefits is much higher than the rest of the
groups. 54.4% of people receiving benefits for pensioners –Group I- leave poverty and
63% of those receiving benefits for pensioners and for families exit poverty as a
consequence of monetary transfers. This shows again the complementarity of these
benefits in increasing the probability of exiting poverty.
The majority of households with children and older persons receive benefits for
pensioners and benefits for families. 56.8% of them receive these benefits and/or benefits
for workers and other benefits. The probability of living poverty as a consequence of these
benefits is equal to 45.6%. As was described previously, the household sizes of households
with children and households with children and older persons in poverty were very similar
-4.2 and 4.6 respectively. However, people living in households with children and older
258
persons have a higher probability of leaving poverty than people living in households with
children and no elders. This evidence shows that this difference is mainly explained by the
benefits for pensioners that households with elders receive. The benefits for pensioners
captured in Groups II and IV increase the exit poverty rate of households with children
and older persons. So, it is the benefits for pensioners which are contributing the most to
increasing the probability of exiting poverty for those living in households with children
and older persons. In addition, when these benefits are combined with benefits for families
the exit poverty rate increases and it is almost equal to the exit poverty rate of households
with elders but no children.
Households in poverty with older persons have the most extensive coverage. Only
6.6% are non-covered when they live without children and 6.7% when they live with
children. However, the 18.4% of people living in households with children but no older
persons are non-covered by benefits. This shows an age bias also in the coverage of
benefits. The lowest coverage of benefits is presented by households without children and
elders. This indicates that children and older persons represent the focus of monetary
transfers. However, households with older persons are more covered by benefits and have
a higher probability of leaving poverty as a consequence of the benefits. The main
explanation for this is the amount of the pensions that they receive.
Table 4-16 Decomposition of the exit rate from poverty, national moderate poverty lines, 5 groups of programmes, groups of households
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
All the population group
0.142 0.143 0.815 0.816 0.175 0.176 0.571 0.574 0.933 0.935 0.611 0.615 0.375 0.379 0.932 0.934 0.402 0.406 0.146 0.149 0.426 0.430 0.341 0.348
I
0.001 0.001 0.002 0.002 0.485 0.521 0.243 0.245 0.447 0.450 0.542 0.546 0.048 0.050 0.163 0.165 0.296 0.304 0.013 0.014 0.019 0.021 0.673 0.702
II
0.134 0.135 0.798 0.799 0.168 0.169 0.021 0.022 0.067 0.069 0.314 0.325 0.037 0.038 0.196 0.199 0.188 0.194 0.103 0.106 0.373 0.377 0.275 0.281
III
0.001 0.001 0.007 0.008 0.138 0.151 0.008 0.008 0.010 0.011 0.731 0.757 0.002 0.003 0.003 0.003 0.775 0.826 0.011 0.012 0.022 0.023 0.487 0.517
IV
0.004 0.004 0.008 0.008 0.448 0.465 0.255 0.258 0.406 0.409 0.628 0.632 0.257 0.261 0.566 0.570 0.454 0.459 0.006 0.007 0.010 0.011 0.603 0.644
V
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
0.2% 0.3% 80.1% 1.1% 2.2% 50.2%
25.9% 56.8% 45.6% 0.7% 1.1% 62.3%
Households with children and eldersHouseholds without children and
elders
P(Em,d) P(Ci) P(Em,d/Ci) P(Em,d) P(Ci) P(Em,d/Ci)
Population groups
0.0% 18.4% 0.0% 0.0% 6.6% 0.0% 0.0% 6.7% 0.0% 0.0% 57.2% 0.0%
0.4% 0.8% 45.6% 25.7% 40.7% 63.0%
0.1% 0.8% 14.4% 0.8% 1.1% 74.4%
13.5% 79.8% 16.9% 2.2% 6.8% 32.0% 3.8% 19.8% 19.1% 10.4% 37.5% 27.8%
14.3% 81.6% 17.5% 57.3% 93.4% 61.3% 37.7% 93.3% 40.4% 14.8% 42.8% 34.5%
4.9% 16.4% 30.0% 1.4% 2.0% 68.8%
Group of ProgrammesHouseholds with children Households with elders
P(Em,d) P(Ci) P(Em,d/Ci) P(Em,d) P(Ci) P(Em,d/Ci)
0.1% 0.2% 50.3% 24.4% 44.8% 54.4%
4.9 Conclusions
The protection that different age groups should receive is under debate. The evidence
shows that different age groups are protected from poverty and destitution dissimilarly. The
discussion in the literature has acknowledged that the age-related bias of welfare institutions
creates a generational inequity in the allocation of public resources. Considering the fact that
experiencing poverty during childhood has not only negative consequences in developmental
outcomes in the present but also generates damaging effects continuing over the whole life of
an individual, the discussion becomes even more relevant. Where public resources are allocated
is in response to normative decisions taken by governments. This research provides evidence
for this discussion through the analysis of cash transfer allocations among age groups. This
research has investigated the age-bias of cash transfers in a high-income country like Chile, in
particular, in relation to two vulnerable groups: children and older persons.
The relevance of Chile as a case study emerges as a consequence of the higher poverty
incidence and vulnerability to poverty in children than among older populations that it
displays. The role of Social Assistance programmes in these disparities was explored by this
study. A partial fiscal analysis using the framework proposed by Commitment to Equity (CEQ)
(Lustig & Higgins, 2016) was applied to the 2015 National Socioeconomic Characterization
Survey (CASEN). The analysis measured the poverty exit rate as a consequence of fiscal
intervention concentrating the analysis on direct taxes and cash transfers.
A first finding of the study is confirmation of the age bias of cash transfers in Chile. Both
conditional and unconditional cash transfers reduce in a higher proportion the poverty rates
among older persons than among children. The results indicate that the reduction of poverty
after monetary transfers among older persons is 4 times the reduction of poverty among
children. Even when both age groups are over-represented among the population in poverty
before fiscal intervention, older groups move to being under-represented in poverty after
monetary transfers while children remain over-represented among the population in poverty.
This indicates that although both vulnerable groups are highly represented in poverty when
only incomes generated by their families are considered, the fiscal intervention alters this
situation. The vulnerability of older groups is highly reduced through monetary transfers
moving a high proportion of them out of poverty. In contrast, monetary transfers are not as
261
effective in moving children out of poverty as they are with the older group. Fiscal
intervention allocates monetary transfers in a way that generates intergenerational inequality.
The results indicate that the effectiveness of cash transfers in increasing exit poverty is
biased towards households where older persons live, and not only biased to older individuals
alone. People living in households with older persons and no children are those with the
highest poverty exit rate after monetary transfers. In contrast, those who live in households
with children and no elderly have the lowest poverty exit rate after monetary transfers. People
living in households with both children and older persons are in between them. This shows
that the effectiveness of monetary transfers in moving people out of poverty is in connection
with the age composition of the households.
The different reasons that might explain the higher effectiveness of cash transfers in
increasing exit poverty in households with older persons were explored: amount of monetary
transfers; size of the households; and poverty gap of households. The results show that the
most important reason is the higher amount of cash transfers that households with older
persons receive. The main cash transfer behind this is the non-contributory pension called
Pensión Basica Solidaria (PBS). The smaller size of households with older persons than
households with children is also part of the explanation behind higher poverty exit rates
among the former. However, households with children and older persons together, which are
those with the largest size of household, have a much higher exit poverty rate than households
with children and no older persons. Having older people at home is more important than
having fewer members at home. Moreover, older persons receiving pensions allows members
of their households to exit poverty even when poverty gaps are much higher in those
households than in households with children.
The fact that the amount of the monetary transfers matters in their effectiveness in
moving people out of poverty is also observed through the complementarity of benefits. The
results show that the exit poverty rate is higher when more than one monetary transfer is
received. Benefits are complementary in increasing the exit poverty rate. The results show that
the combination of benefits for families with benefits for workers or other benefits increases
the exit poverty rate of households with children and no older persons. The same happens
when benefits for families are combined with pensions. Considering the fact that the coverage
262
of monetary transfers is high among households with children and those with older persons,
the amount of monetary transfer received by equivalent persons appears crucial to
understanding their effectiveness in reducing poverty. The evidence of this paper supports the
argument that the amount of benefit that each individual receives is an important element in
increasing the exit poverty rate and not only the coverage of cash transfers among people in
poverty. The findings show that the coverage of cash transfers and their effectiveness in
reducing poverty have an age bias towards households with older persons rather than
households with children. Overall, this study provides further evidence that the effectiveness
of cash transfers in reducing poverty depends on the kind and amount of the cash transfer,
and those, in the case of Chile, are strictly in connection with the age composition of the
household. These findings have clear policy implications. First, the discussion of the age bias in
the provision of public resources must be incorporated in the design of any social protection
programme. The findings confirm an age bias in the allocation of monetary transfers creating a
generational inequity which was not present before the fiscal intervention. Normative
decisions regarding which vulnerable groups should be more or less protected should consider
the intergenerational inequities that fiscal intervention can generate.
Second, policy makers should consider the effectiveness of the complementarity of
monetary transfers in reducing poverty. Fiscal interventions must be considered in their
conjunctions and not just separately in order to identify their effectiveness. Adding further
protection for children living in households without older persons is an option in the context
in which children living with grandparents are more protected against poverty.
The fact that experiencing poverty during childhood has long lasting consequences on
adult life increases the urgency of child poverty reduction. Children and older people are
vulnerable groups over-represented in poverty before fiscal intervention in Chile. The fact that
monetary transfers create an intergenerational inequity of allocation of resources is a topic that
must be discussed. Any anti-poverty programme must incorporate a discussion of age-related
effectiveness.
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4.11 Annexes
4.11.1 The new methodology for measuring poverty in Chile and recent
figures of poverty reduction under both methodologies
The new methodology for measuring poverty implemented in Chile since 2013 considers
household consumption equivalence scales; this means that the expenditure to satisfy the food
and non-food needs increases less than proportionally than the increase of number of
members of households. A household is in poverty if its monthly income by equivalent person
(instead of per capita) is lower than ‘the poverty line by equivalent person’ (instead of the
poverty line per capita). The poverty line represents the amount of income necessary to satisfy
the food and non-food basic needs of an equivalent person. In the same way, an individual is
in extreme poverty when his monthly income by equivalent person is under the ‘extreme
poverty line by equivalent person’. Under the new methodology, the extreme poverty line has
been established as 2/3 of the poverty line value.
The poverty line and the extreme poverty line are estimated from the cost of a basic food
bundle that must satisfy the minimum requirement of calories and reflect the consumption
habits of the Chilean population. The new methodology estimated a new basic food bundle
from the VIIth Family Budget Survey made by the National Institute of Statistics between
2011 and 2012. In this bundle are included the minimum of calories84 and proteins85 needed
nutritionally per day, advised by the World Health Organisation and the Food and Agriculture
Organisation, considering the consumption habits of the Chilean population86. The prices are
updated by the Consumer Price Index in order to update the poverty lines as well.
Figure 4-1 shows the moderate and extreme income poverty rates between 1990 and 2015
using both methodologies. The new methodology of 2013 was applied retrospectively to 2006
to see the evolution from that point on. Chile has shown a considerable decrease in poverty
during the last two decades. Using the ‘traditional methodology’, the poverty headcount rate
84 The minimum is equal to 2,176 kcal 85 The minimum is equal to 54,612 gr 86 A 2,187 kcal per person per day is the average used by Economic Commission for Latin America and the Caribbean (ECLAC).
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among individuals declined from 38.6% in 1990 to 7.8% in 2013, and extreme poverty declined
from 13.0% to 2.5% during the same period of time87. The ‘new methodology’ indicates that
3.5% of the population is living in extreme poverty and 11.6% in moderate poverty in 2015.
Although poverty levels had constantly decreased, still a considerable proportion of the
population do not have an enough income to satisfy basic needs.
Figure 4-22 Percentage of people in income poverty by New Methodology (2006-2013) and Traditional Methodology (1990-2013)
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
87 Source: Ministry of Social Development.
38,6
32,9
27,6
23,221,7
20,218,7
13,711,4 10,9
7,8
29,1
25,322,2
14,411,613
9 7,65,7 5,6 5,6 4,7
3,2 3,6 3,1 2,5
12,69,9
8,1
4,5 3,50
5
10
15
20
25
30
35
40
45
1990 1992 1994 1996 1998 2000 2003 2006 2009 2011 2013 2015
old poverty line new poverty line
old extreme poverty line new extreme poverty line
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4.11.2 Dimensions, indicators and cut-offs of the multi-dimensional
poverty index used in Chile
People are in multi-dimensional poverty if they are deprived in at least three indicators of
the following four dimensions; education, health, work and social security, or dwelling; or if
they are deprived in the three indicators of Networks and Social Cohesion and two indicators
of one or two of the rest of the dimensions. This distinction is made because the dimension
Network and Social Cohesion was only included in the measures in 2015 while the other four
dimensions had been included since 2013. Altogether, this means being deprived in more than
22.5% of the total indicators (Ministerio de Desarrollo Social, Chile, 2015a).
Table 4-17 Dimensions, indicators and cut-offs of the multi-dimensional poverty index used in Chile
Dimensions Indicators Deprived if…
Education
School attendance Any school-aged child (between 4-18 years) is not attending school
Years of schooling Any household member has less years of schooling according to their age by law
School lag Any 21 year old or less household member attend school with a lag of two years or more
Health
Nutrition Any child between 0 and 6 years is malnourished (malnutrition or obesity)
Access to health services
Any member is not affiliated to any health system and do not have health insurance
Health attendance Any member did not receive health services during the last 3 months because of reasons beyond their control
Employment and Social Security
Occupation Any member over 18 years is unemployed
Social Security Any member over 15 years employed is not paying social security
Pensions Any member in retirement-ages do not receive any contributory or non-contributory pension
Housing and environment
Housing conditions
Overcrowded household (more than 2.5 people per bedroom) or household in bad conditions (floor, ceiling, walls in bad conditions)
Basic Services Household without basic sanitary services (WC, water according to urban and rural standards)
Environment a.) 2 or more pollution problems in area of residence or b) no household member is employed and no basic services (health, education and transportation) are offered in their area, or c) no basic services (health, education and transportation) are offered in their area and the commute in public transportation of their employed members takes more than an hour
Networks and Social Cohesion
Social Participation
Household has not counted with any member outside the household in 8 situations of care and support; and no household member over 14 years has participated in any social groups during the last 12 months; and no households members over 18 years and employed participate in any organization related with their job
Equal treatment Any member declares being discriminated or unfairly treated during the last 12 months for any reasons described in the question.
Security Any member have experienced or witnessed drug trafficking or shootings in their areas during the last 12 months
Source: Author’s elaboration from (Ministerio de Desarrollo Social, Chile, 2015)
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4.11.3 Description of the Direct Cash Transfers considered in the analysis:
4.11.3.1 Benefits for Families
Aporte Familiar Permanente (AFP). This is a cash transfer which is part of the
Social Security System paid in March of every year to help lower income families
to cope with the higher expenditure at the beginning of the year. There are two
groups of people receiving this transfer. The first group is made up of households
which already receive ‘Asignacion Familiar o Maternal’ or ‘Subsidio Familiar (SUF)’.
The second group is formed by households who belong to the ‘Chile Solidario’ or
‘Seguridades y Oportunidades’ sub-systems. The households who belong to the first
group receive 43,042 Chilean Pesos (at 2016 values)88 for each family dependent
(who is entitled to the benefit). However, the households that belong to the
second group receive the same amount of transfer but only one of them. In this
case the entitlement to the benefit belongs to the family which participates in the
above-mentioned programmes. In cases in which a household belongs to both
groups belonging to group A takes priority.
Subsidio Unico Familiar (SUF). This is a monthly cash transfer to low income
individuals without access to the Asignacion Familiar transfer because they are not
dependent workers affiliated to a benefit system (beneficiaries). The cash transfer
is provided for each family dependent younger than 18 years old (who is the
causative of the benefit89) that also has the right to medical and dental attention.
The SUF is not compatible with the following cash transfers: ‘Asignacion Familiar’,
‘Pension Basica Solidaria’ and ‘Subsidio de Discapacidad Mental’ for children younger
than 18 years old. The cash transfer is equal to 10,844 Chilean Pesos (2017
values). The SUF is provided for 3 years after which it can be renewed if the
conditions still remain90. The allowance is provided until the 31st December of the
88 The amount of the transfer is adjusted by 100% of the variation of the Consumer Price Index (CPI) on 1st March every year. 89 They provide one allowance only even when more than one beneficiary is entitled to it. . 90 However, the municipality can check at any time if the conditions still remain.
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year in which the boy, or the girl teenager turns 18 years old. Children who are
entitled to the allowance must satisfy the following requirements:
- Belong to the Registro Social de Hogares and to the 60% most vulnerable of the
population with respect to the Calificacion Socioeconomica.
- The boys, girls and teenagers entitled to the allowance cannot receive a salary from
any source equal or higher than the SUF 91.
- The girls and boys must verify every year that they have participated in all the
health programmes for children up to 8 years old established by the Ministry of
Health.
- Children between 6 and 18 years old must verify that they are regularly attending
students of public schools or schools recognized by the State.
Subsidio Familiar (SUF) Mujer embarazada. This monthly cash transfer is
paid throughout pregnancy for women earning low incomes (the causatives of the
benefit) who are not receiving ‘Asignacion Maternal’. They have the right to free
medical and dental attention. This allowance is for over 20 weeks pregnant
women who belong to the Registro Social de Hogares (RSH) and the 60% of
lower income or higher socioeconomic vulnerability with respect to the
Clasificacion Socioeconomica (CSE) who are not receiving the SUF a la Madre.
They cannot receive a salary from any source equal or higher than the SUF92.
The cash transfer is equal to 10,844 Chilean Pesos (2017 values) and the payment
is retrospective meaning that the first months of pregnancy are included in the
first payment. The following payments of the allowance are monthly. The women
who receive the ‘SUF Mujer Embarazada’ cannot receive benefits such as the
‘Asignacion Familiar o Maternal’, ‘Pension Basica Solidaria’ and/or the ‘Subsidio de
Discapacidad Mental’ for individuals younger than 18 years old. If they are entitled
to the ‘Asignacion Familiar and SUF’ they will need to choose between them. Once
the baby is born and before the baby will be 3 months old, he or she will receive
91 Except for the orphan’s allowance which is not taken into consideration in this respect. . 92 Except for the orphan’s allowance which is not taken into consideration in this respect.
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the SUF al Recien Nacido. After 3 months old, the baby becomes the one entitled
to the benefit instead of the mother.
Subsidio Familiar para personas con Certificacion de Invalidez y con
Discapacidad mental. This cash transfer, also known as “SUF duplo”, is
provided to low income households that have a member with physical or mental
disability (who the entitlementto the benefit is attached to) and that are not
receiving ‘Asignacion Familiar’. Entitlement to the SUF comes with the right to
receive free medical and dental care. The SUF is not compatible with the
following benefits: ‘Asignacion Familiar’, ‘Pension Basica Solidaria de Invalidez (PBSI)’
and ‘Subsidio de Discapacidad Mental para personas menores de 18 anos’. If they are
entitled to both ‘Asignacion Familiar’ and this ‘SUF’ they must opt for only one of
them. The amount of the cash transfer is 21,688 Chilean Pesos per month (2017
values). This SUF is provided for 3 years and it can be renewed after that. The
person entitled to the benefit must have medical certification of their mental or
physical disability. They must belong to the 60% of the population on lower
incomes and in higher socio-economic vulnerability with respect to the
Socioeconomic Characterization (CSE). Those entitled to the allowance cannot
receive a salary from any source equal or higher than the SUF93. Girls and boys
must participate in all the health programmes for children established by the
Ministry of Health until they are 8 years old.
Subsidio de Discapacidad Mental para personas menores de 18 anos. This
is a monetary transfer that every month is provided to boys, girls and teenagers
(under 18 years old) with mental disabilities who belong to the most vulnerable
and lower income families of society. This allowance provides also the right to
free medical care for the entitled children. The children must have been registered
in the ‘Registro Social de Hogares’ and be living in a household that is among the
20% most vulnerable households in the Country. The amount of the cash
transfer is equal to 66,105 Chilean Pesos (2017 values).
93 Except for the orphan’s allowance which is not taken into consideration in this respect.
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Asignacion Familiar. This is a variable cash transfer depending on the salary of
the workers or pensioners provided for every legal dependent of them. This
benefit is incompatible with the SUF. The beneficiaries of ‘Asignacion Familiar’ are
the following:
Dependent workers in the public or private sector; Independent workers;
Recipient of any social security benefit; Widow’s Pensioners and the mother of
the children of a worker or pensioner receiving benefits because of an industrial
injury or a work-related illness; State Institutions or those recognized by the State
where children live; Individuals who look after children under 18 years old
because of a court decision.
The dependent individuals who are entitled to the benefits are the following:
- Wives
- Children under 18 years old who are regular students in school and young students
between 18 and 24 years old who must verify their regular attendance of studies.
- Grandchildren living with their grandparents and without their parents.
- Widowed mothers
- Parents, grandparents or other ancestors older than 65 years old.
- Children living in State Institutions or those recognized by the State.
- Children living with individuals because of a court decision.
Individuals entitled to the benefit must not earn a salary from any source equal or
higher than 50% of the Monthly Minimum Income which is 132,000 Chilean Pesos94
(2017 values). The amount of the cash transfer depends on the salary of the
beneficiary as is shown in the following table:
94 Except for the orphan’s allowance which is not taken into consideration in this respect.
274
CT Amount
Salary
Minimum Maximum
10,844 0 277,016
6,655 277,017 404,613
2,104 404,614 631,058
0 631,058
Values for the period between 01 January to 30 June 2017
If one of the recipients of the benefit also has a disability certification, the
amount of the cash transfer is double the amount reported in the table.
Asignación Maternal. This is a monthly cash transfer for pregnant women
working as a dependent or independent who are affiliated to a provisional
regimen and also for men who have a pregnant wife. Pensioned women or
pregnant women who are the wife of a pensioner are not entitled to receive this.
The amount of the cash transfer is provided every month throughout the
pregnancy and it is the same as provided by the ‘Asignacion Familiar’. The
beneficiaries can demand the benefit once they are 20 weeks pregnant. The
benefits of the first five months are paid retrospectively.
Pensión Básica Solidaria de Invalidez. This is a cash transfer focused on
individuals between 18 and 65 years with disabilities that do not allow them to
work. They receive this cash transfer if they do not receive pension from any
provisional regime. After 65 years old they have access to the ‘Pensión Básica
Solidaria de Vejez’. The beneficiaries must be in the ‘Registro Social de Hogares’ and
living in a household that belongs to the 60% of the lowest provisional target
score (‘Puntaje de Focalizacion Previsional’). The amount of the pension is
102,897 (until 30 June 2017) being adjusted by the PCI on the 1st July of every
year.
Aporte Previsional Solidario de Invalidez. This is a monthly cash transfer that
supports individuals with a disability who are receiving a low amount of disability
pension. The amount of this supplementary contribution is the amount extra
needed to reach the level of the ‘Pension Basica Solidaria de Invalidez’ equivalent to
102,897 (until 30 June 2017). The beneficiaries must satisfy the same conditions
275
required by the ‘Pension Basica Solidaria de Invalidez’. The main difference in this
case is that the individuals have a disability pension from their contributory
pensions. However, this pension is lower than the PBSI and the State contributes
the difference needed to get an amount equivalent to the PBSI.
Asignacion por Muerte. This is a unique payment to help families in the case of
the death of one of their members. The deceased giving rise to the benefit must
have been receiving PBS or APS and have not been entitled to death benefit in
any other social security system. In addition, he or she must have been the
beneficiary of any allowance or have been pensioned or have made a contribution
to social security at some point in the previous six months. Any of these
requirements is needed to receive 510,888 Chilean pesos (2017 values) for the
family.
Subsidio al Consumo de Agua Potable. This is a discount on the monthly
water bill for families on the ‘Registro Social de Hogares’ who spend more than 3%
of their incomes on this service. This benefit is provided without the over 3%
requirement if the household belongs to the ‘Chile Solidario’ or ‘Oportunidades y
Seguridades’ programmes. The benefit is a variable percentage of the bill with a
maximum of 15 cubic metres monthly. This percentage depends on the region
and county in which the household is located and also the household’s
vulnerability depending on its ‘Calificacion Socioeconomica’ (below or above the
40% vulnerability threshold). The ‘Chile Solidario’ or ‘Oportunidades y Seguridades’
households receive 100% of their bill with a maximum of 15 cubic metres.
Subsidio Calefaccion para Aysen. This is a monetary contribution to the
expenditure on heating for households located in Aysen Region. This subsidy is
provided only once a year per household in the ‘Registro Social de Hogares’ which
belong to the 80% of lowest incomes and highest vulnerability with respect to the
‘Calificacion Socioeconomica’. This subsidy corresponds to 100,000 Chilean
Pesos (2017 values).
276
4.11.3.2 Benefits for Households in Extreme Poverty (Chile Solidario and Sistema de
Igualdad y Oportunidades)
Households living in extreme poverty are targeted to offer to them Conditional
Cash Transfers (CCT). They have access to other benefits and subsidies from the
State.
Bono Control del Niño Sano. This cash transfer is directed to families who
belong to the Ingreso Etico Familiar Programme and have started the Social Support
and/or the Job Support Programme or are receiving the Bono Base Familiar because
they belong to the Chile Solidario Programme. The main objective of this cash
transfer is to promote the fulfilment of regular medical check-ups (control del niño
sano) of the children in the participating households. This is a monthly cash
transfer of 6,000 Chilean pesos per child younger than 6 years. They must have
up to date medical check-ups and verify them at the local municipality. They will
receive this bonus for a maximum of 24 months.
Bono por Asistencia Escolar. This cash transfer is directed to families who
belong to the Ingreso Etico Familiar Programme and have started the Social Support
and/or the Job Support Programme or families who are receiving the Bono Base
Familiar from the Chile Solidario Programme. They must have children between 6
and 18 years going to school regularly (no less than 85% of assistance). This is a
monthly cash transfer of 6,000 Chilean pesos per child which is received after the
Ministry of Education has confirmed the fulfilment of the minimum of
attendance required. This bonus is received for a maximum of 24 months.
Bono Logro escolar. This is focused on families who belong to the Ingreso Etico
Familiar Programme and to the 30% most vulnerable sector of the population
who have children with a good performance in school. In order to know if they
belong to this particular vulnerability group information is used from the Proxy
Means Test Ficha de Proteccion Social and the income of the family during the last 12
months from the register of the Administradora de Fondos de Cesantia. Good
performance in schools is defined as belonging to the higher 30% of the class
grades. The children must be between the 5th and 12th grades. In order to assess
277
good performance the ranking of the students in the class the year before is
considered. This information is collected by the Ministry of Education who
provide this information to the Ministry of Social Development who finally
determine the beneficiaries of the bonus for school achievement. The amount of
the cash transfer depends on the level of achievement. The 30% of students with
the highest scores are divided into two halves. The first half is composed of the
students with the highest scores who receive 56,253 Chilean pesos (value as set in
the 2015 round). The second-best group of students receive 33,752 Chilean
pesos. This cash transfer is received once per year.
4.11.3.3 Benefits for Pensioners
Pension Basica Solidaria (PBS). This is a cash transfer for individuals from 65
years old onwards who do not receive any other pension from a social security
system. They must be part of the ‘Registro Social de Hogares’ and belong to the 60%
of households with the lowest score of the provisional focalization instrument.
They must have been living in Chile for at least 20 years, continuously or
discontinuously. The amount of the cash transfer is equal to 102,897 Chilean
pesos per month (values until 30 June 2017).
Aporte Previsional Solidario de Vejez (APS). This is a cash transfer to
improve the pensions of pensioners in the private system who do not have a
good pension. It is for individuals from 65 years onwards that receive a pension
from AFP, an insurance company, or the former Social Security System (IPS)
lower than 304,062 (values until 30 June 2017). This value represents the
Maximum pension with a supplementary previsional contribution (PMAS). They
must be part of the ‘Registro Social de Hogares’ and to belong to the 60% of
households with the lowest score of the provisional focalization instrument. They
must have been living in Chile for at least 20 years, continuously or
discontinuously. The amount of the cash transfer depends on the base pension of
the beneficiary. Pensions lower than 102,897 (the PBS value) are going to receive
the difference up to the PBS level. Pensions between the PBS and PMAS levels
278
receive the difference between the PBS and a percentage of the base pension of
the beneficiary.
Bono Invierno. This is a cash transfer for low income pensioners facing higher
expenditure during winter. It is for pensioners in the Social Security System (IPS),
Dirección de Previsión de Carabineros de Chile (Dipreca), Caja de Previsión de la
Defensa Nacional (Capredena), AFP and insurance companies receiving APS,
and PBS beneficiaries. The amount is equal to 57,353 pesos (2016 values).
Bono por Hijo. This is a monetary transfer to a woman’s individual national
insurance account for each child born or adopted with the aim of increasing her
pension amount. It is paid once per child.
Bono Bodas de Oro. This is a one-off payment for couples or widows that have
reached their50th wedding anniversary.They must belong to the ‘Registro Social de
Hogares’ and to the 80% of lowest incomes and highest vulnerability with respect
to the ‘Calificacion Socioeconomica’. The couple must still be living together. If
one of them has died, the widow will receive half of the benefit. The amount is
equal to 307,516 pesos (2017 values) which is split in two equal parts of 153,758
for each of them.
4.11.3.4 Benefits for Workers
Bono al Trabajo de la Mujer. This cash transfer is part of the Ingreso Etico
Familiar Programme and it is focussed on working women in dependent or
independent jobs with their contributions up to date. They must belong to the
40% most vulnerable of the population from the Registro Social de Hogares95 and
95 “El Registro Social de Hogares es un sistema de información construido con antecedentes aportados por el hogar y bases de datos que posee el Estado, como:
Registro Social de Hogares,
Servicio de Impuestos Internos (SII),
Registro Civil,
Administradora del Fondo de Cesantía (AFC),
Instituto de Previsión Social (IPS),
Superintendencia de Salud y
Ministerio de Educación, entre otros. El Registro Social de Hogares, en base a la información aportada por una persona del hogar mayor de 18 años y los datos administrativos que posee el Estado, ubica al hogar en un tramo de Calificación Socioeconómica.
279
their age must be between 25 and 59 years old. The amount of the cash transfer
is calculated from their level of income and will be paid 4 months after
application for the subsidy. Their gross monthly income must be lower than
453,282 Chilean pesos and their gross annual income lower than 5,439,369
Chilean Pesos (at 2017 values). They must work primarily in the private sector
(they cannot work in public enterprises including municipalities) and if the
enterprise receives some contribution from the State this cannot be higher than
50%. This bonus provides an amount to the employer to increase the incentive
for hiring women who belong to the most vulnerable group. The employee can
receive their part during four continuous years but the employer can receive the
subsidy for 24 months.
Subsidio al Empleo Joven (SEJ). This is a cash transfer for young -between 18
and 24 years old- workers to improve their salaries and a contribution for their
employers The SEJ extinguishes if the worker has not completed his/her
secondary school by the age of 21 years. They can be dependent or independent
workers and must belong to the 40% most vulnerable of the population from the
Registro Social de Hogares. The amount of the cash transfer is calculated from their
level of income. Their gross monthly income must be lower than 453,281 Chilean
pesos and their gross annual income lower than 5,439,369 Chilean Pesos (at 2017
values).
La Calificación Socioeconómica se construye a partir de la suma de ingresos efectivos de las personas que componen un hogar, y son ajustados por el nivel de dependencia de personas con discapacidad, menores de edad y adultos mayores que integran el hogar. En caso de que los integrantes del hogar no registren información de ingresos en las bases administrativas que posee el Estado, se toma en consideración los valores de ingresos reportados por el integrante del hogar que realiza la solicitud de ingreso al Registro Social de Hogares. De esta manera, para resguardar que la Calificación Socioeconómica represente las verdaderas características de los hogares, el Registro Social de Hogares aplica a toda la base, una validación de las condiciones de vida de la familia, considerando según corresponda:
Tasación Fiscal de Vehículos
Avalúo Fiscal de Bienes Raíces
Valor de Cotización de Salud
Valor de mensualidad de Establecimiento Educacional” http://www.registrosocial.gob.cl/que-es-el-registro-social/
280
4.11.3.5 Other Benefits
Pensión por leyes especiales de reparación. This is a pension for the families
of victims of human rights violations or political violence which where included
in the Informe de la Comisión Nacional de Verdad y Reconciliación and the
Corporación Nacional de Reparación y Reconciliación.
4.11.4 Rates of taxes
4.11.4.1 Impuesto a la Renta de Primera Categoría (Artículo 20 Ley de Impuesto a la
Renta)
Año Tributario Año Comercial Tasa Circular SII
2002 2001 15% N° 44, 24.09.1993
2003 2002 16% N° 95, 20.12.2001
2004 2003 16,5% N° 95, 20.12.2001
2005 al 2011 2004 al 2010 17% N° 95, 20.12.2001
2012 al 2014 2011 al 2013 20% N° 63 30.09.2010
N° 48 19.10.2012
2015 2014 21% N° 52, 10.10.2014
2016 2015 22,5% N° 52, 10.10.2014
2017 2016 24% N° 52, 10.10.2014
2018 y sgtes. 2017 y sgtes. 25% N° 52, 10.10.2014
2018 2017 25,5% N° 52, 10.10.2014
2019 y sgtes. 2018 y sgtes. 27% N° 52, 10.10.2014
281
4.11.4.2 Escala de tasas del Impuesto Único de Segunda Categoría según N° 1 artículo
43 LIR para trabajadores dependientes
VIGENCIA
(1)
N° DE
TRAMOS (2)
RENTA IMPONIBLE MENSUAL
DESDE HASTA
(3)
FACTOR
(4)
CANTIDAD A REBAJAR
(5)
RIGE A CONTAR
DEL 01.01.2013
Y HASTA EL
31.12.2016(CIR.
N° 6, DE 2013)
1 0,0 UTM a 13,5 UTM Exento -.-
2 13,5 " a 30 " 4% 0,54 UTM
3 30 " a 50 " 8% 1,74 "
4 50 " a 70 " 13,5% 4,49 "
5 70 " a 90 " 23% 11,14 "
6 90 " a 120 " 30,4% 17,80 "
7 120 " a 150 " 35,5% 23,92 "
8 150 " y MAS 40% 30,67 "
VIGENCIA
(1)
N° DE
TRAMOS (2)
RENTA IMPONIBLE
MENSUAL DESDE HASTA
(3)
FACTOR
(4)
CANTIDAD A
REBAJAR
(5)
RIGE A CONTAR DEL
01.01.2017, SEGÚN N°
30 DEL ARTÍCULO 1°
LEY N° 20.780/2014 E
INCISO 1° ARTÍCULO 1°
TRANSITORIO DE
DICHA LEY.
1 0 UTM 13,5 UTM 0% 0 UTM
2 13,5 “ 30 “ 4% 0,54 “
3 30 “ 50 “ 8% 1,74 “
4 50 “ 70 “ 13,5% 4,49 “
5 70 “ 90 “ 23% 11,14 “
6 90 “ 120 “ 30,4% 17,80 “
7 120 “ Y más “ 35% 23,32 “
282
4.11.4.3 Escala de tasas del Impuesto Global Complementario según artículo 52 de la
LIR para personas naturales con domicilio y residencia en Chile
VIGENCIA
(1)
N° DE
TRAMOS (2)
RENTA IMPONIBLE
ANUAL DESDE HASTA
(3)
FACTOR
(4)
CANTIDAD A REBAJAR
(5)
RIGE A
CONTAR DEL
AÑO
TRIBUTARIO
2014 Y HASTA
EL AÑO
TRIBUTARIO
2017 (CIR. N°
6, DE 2013).
1 0,0 UTA a 13,5 UTA Exento -.-
2 13,5 " a 30 " 4% 0,54 UTA
3 30 " a 50 " 8% 1,74 "
4 50 " a 70 " 13,5% 4,49 "
5 70 " a 90 " 23% 11,14 "
6 90 " a 120 " 30,4% 17,80 "
7 120 " a 150 " 35,5% 23,92 "
8 150 " y más 40% 30,67 "
VIGENCIA
(1)
N° DE
TRAMOS (2)
RENTA IMPONIBLE
MENSUAL DESDE HASTA
(3)
FACTOR
(4)
CANTIDAD A
REBAJAR
(5)
RIGE A CONTAR DEL
AÑO TRIBUTARIO 2018,
SEGÚN N° 32 DEL
ARTÍCULO 1° LEY N°
20.780/2014 E INCISO 1°
ARTÍCULO 1°
TRANSITORIO DE DICHA
LEY.
1 0 UTM 13,5 UTA 0% 0 UTA
2 13,5 “ 30 “ 4% 0,54 “
3 30 “ 50 “ 8% 1,74 “
4 50 “ 70 “ 13,5% 4,49 “
5 70 “ 90 “ 23% 11,14 “
6 90 “ 120 “ 30,4% 17,80 “
7 120 “ Y más “ 35% 23,32 “
283
4.11.5 Poverty by age
Figure 4-23 Distribution of age groups among all population, population in poverty under market income and population in poverty under disposable income, 6 age groups
Source: Author’s elaboration based on CASEN, Ministry of Social Development.
4.11.6 Tables and Figures
Table 4-18 Household type by population groups, all population, Row percentage
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
5,3% 7,6% 8,6%
21,3%28,7% 31,5%
18,1%14,2%
15,8%18,5%
16,3%17,4%
24,2% 18,0%18,3%
12,6% 15,2% 8,5%
all population poor under market income poor under disposableincome
Proportion of individuals, by age groups and income
0 to 3 4 to 18 19 to 29 30 to 44 45 to 64 64 plus
single nuclear two-
parent
extended
two-parent
nuclear single-
parent
extended
single-parent
Total
Households with children 0.0% 47.1% 27.7% 13.2% 12.0% 100%
Households with elders 11.7% 41.6% 15.4% 12.4% 19.0% 100%
Households with children and elders 0.0% 2.3% 58.5% 0.2% 39.0% 100%
Households without children and elders 12.7% 53.9% 7.7% 15.9% 9.9% 100%
All the population 4.2% 42.4% 25.5% 12.1% 15.8% 100%
Population Groups
Household type
284
Table 4-19 Household type by population groups, exit poverty individuals
Source: Author’s elaboration based on CASEN 2015, Ministry of Social Development.
4.11.7 Fiscal mobility matrices
Table 4-20 Fiscal mobility matrix, from market income to disposable income, Row percentage distribution of people living in households with children and older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Table 4-21 Fiscal mobility matrix, from market income to disposable income, Total percentage distribution of people living in households with children and older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development
single nuclear two-
parent
extended
two-parent
nuclear single-
parent
extended
single-parent
Total
Households with children 0.0% 41.0% 27.4% 16.2% 15.5% 100%
Households with elders 15.3% 52.1% 12.2% 8.9% 11.5% 100%
Households with children and elders 0.0% 1.9% 55.4% 0.5% 42.3% 100%
Households without children and elders 22.7% 44.8% 4.4% 17.5% 10.6% 100%
All the population 7.1% 38.1% 25.6% 10.4% 18.8% 100%
Population Groups
Household type
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 38.6% 51.8% 9.6% 0.0% 0.0% 100%
Moderate Poverty 0.2% 43.0% 56.5% 0.4% 0.0% 100%
Vulnerability 0.0% 0.1% 85.9% 14.0% 0.0% 100%
Middle Class 0.0% 0.0% 1.0% 99.0% 0.0% 100%
Upper Middle Class 0.0% 0.0% 0.0% 5.2% 94.8% 100%
Total 2.4% 7.1% 32.7% 56.1% 1.7% 100%
Row percentage distribution of population
Disposable Income
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 2.4% 3.2% 0.6% 0.0% 0.0% 6%
Moderate Poverty 0.0% 3.9% 5.1% 0.0% 0.0% 9%
Vulnerability 0.0% 0.0% 26.6% 4.3% 0.0% 31%
Middle Class 0.0% 0.0% 0.5% 51.7% 0.0% 52%
Upper Middle Class 0.0% 0.0% 0.0% 0.1% 1.7% 2%
Total 2.4% 7.1% 32.7% 56.1% 1.7% 100%
Total percentage distribution of population
Disposable Income
285
Table 4-22 Fiscal mobility matrix, from market income to disposable income, Row percentage distribution of people living in households with no children and no older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Table 4-23 Fiscal mobility matrix, from market income to disposable income, Total percentage distribution of people living in households with no children and no older persons
Source: Author’s elaboration based on CASEN, Ministry of Social Development
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 72.2% 18.6% 6.1% 3.1% 0.0% 100%
Moderate Poverty 0.5% 80.3% 14.7% 4.5% 0.0% 100%
Vulnerability 0.0% 1.3% 88.8% 9.9% 0.0% 100%
Middle Class 0.0% 0.0% 0.8% 99.2% 0.0% 100%
Upper Middle Class 0.0% 0.0% 0.0% 4.8% 95.2% 100%
Total 2.0% 3.3% 8.2% 71.6% 14.9% 100%
Row percentage distribution of population
Disposable Income
Market Income Extreme
poverty
Moderate
Poverty
Vulnerability Middle
Class
Upper
Middle
Class
Total
Extreme poverty 2.0% 0.5% 0.2% 0.1% 0.0% 3%
Moderate Poverty 0.0% 2.7% 0.5% 0.2% 0.0% 3%
Vulnerability 0.0% 0.1% 6.9% 0.8% 0.0% 8%
Middle Class 0.0% 0.0% 0.6% 69.9% 0.0% 70%
Upper Middle Class 0.0% 0.0% 0.0% 0.7% 14.8% 16%
Total 2.0% 3.3% 8.2% 71.6% 14.9% 100%
Total percentage distribution of population
Disposable Income
286
5 Conclusions
The main theme of this thesis is vulnerability, with a particular emphasis on vulnerability to
poverty. This topic is important for several reasons that were explained in the Introduction,
Section I. Alternative approaches to understanding and measuring vulnerability were also
described. Consensus regarding its importance has not been reached with respect to its
definition and measurement. Although in general terms vulnerability to poverty can be defined
as the probability that a household will find itself in poverty in the future (Barrientos 2013),
there is no a unique way to measure and characterize it. The aim of this thesis is to contribute
to the understanding of vulnerability by trialling three novel approaches.
Each of three papers of this thesis addresses a specific theme related to the main research
question of how vulnerability can be conceptualized and characterized. The three papers
explore the following questions: (i) Are people who have left poverty vulnerable to being in
poverty again? (ii) What are the determinants of vulnerability to poverty? And what
distinguishes people living in vulnerability from people in poverty and the middle class? (iii) Is
vulnerability related with age? And what is the role played by cash transfers in this relation?
In this final section, the main findings and contributions of the research are presented.
Additionally, the policy implications and areas that will need to be addressed in future research
are discussed. The manner in which each paper provides an answer to each question follows.
5.1 Findings and contributions from each of the three papers
The question that the first paper tries to answer is whether people who have left poverty
are still vulnerable to being in poverty again. Evidence has shown that a group of people in
developing countries who have moved out of poverty are “bunching up” just above the
poverty line and remain vulnerable to falling into poverty after any subsequent shock (Chen &
Ravallion, 2004). From this evidence emerges the question regarding what is happening with
vulnerability to poverty while poverty is falling. This needs to go beyond poverty analysis to
incorporate vulnerability and analyse them in conjunction. This paper proposes a relative
287
approximation to poverty and vulnerability. Here, the lowest 2 deciles of the income
distribution represent poverty and the lowest 6 deciles are considered the deciles in
vulnerability. The aim is to explore their shifts along the distribution of income over time. The
empirical context of the paper is Chile between 1990 and 2013 and the data recorded by the
National Socioeconomic Characterization Survey (CASEN) between those years, the survey
used to conduct the empirical analysis. In this context, the paper examines population shifts
along the distribution of income from poverty and vulnerability deciles in 1990 to income
deciles in 2013. The Relative Distribution method introduced by Handcock and Morris (1998;
1999) was applied to analyze these shifts along the deciles of the income distribution. The main
advantage of this method is the possibility it offers to analyze all distributional changes from a
non-parametric framework. It helps us to observe the way in which the deciles of income
distribution have moved relative to the past from a non-parametric perspective and whether
some of them have become polarized over the period. Additionally, the role of monetary
transfers and the importance of several co-variates over these changes are provided.
The results show that reduction in poverty can happen simultaneously with reduction in
vulnerability. The evidence from Chile indicates that as real incomes increased between 1990
and 2013 the proportion of people in both 1990’s poverty and vulnerability decreased. The
following two things happened. First, the proportion of people in 2013 who remained in the
bottom deciles of 1990 decreased. This indicates that the chances of remaining in the poverty
deciles of 1990 decreased throughout the period. The people in poverty deciles moved up the
income distribution. Second, the people moving up the income distribution were not
concentrated in vulnerability deciles in 1990. The percentages of people that in 2013 remained
in deciles of vulnerability in 1990 also fell. This shows that people who left poverty do not
necessarily move into the deciles just above, remaining vulnerable. Many of them are moving
further up the income distribution. Answering the question, people moving out of poverty are
not increasing the group of people in vulnerability. Some of them remain in the vulnerability
deciles but others move to the upper part of the income distribution. The main driver of this
reduction in poverty and vulnerability levels is the increase in the autonomous income96 of the
households which is generated by themselves. Although monetary transfers also contribute to
96 Autonomous income is the name given to the income generated by household members. This income does not consider monetary transfers or imputed rent. Autonomous income is the best income to reflect the standard of living of households because it represents their ability to generate income for themselves.
288
both of these reductions, the main explanation is the increase in the income generated by
household members. The fact that monetary transfers reduce not only people in poverty but
also in vulnerability reflects the coverage of Social Assistance over a larger population than
people in poverty. The expansion of Social Assistance to vulnerable segments of the
population since 2000 onwards is reflected in the results. The reduction in vulnerability after
monetary transfers is more noticeable between 2000 and 2013 than between 1990 and 2000.
The results also confirm the 6th decile as the best threshold that empirically define vulnerability.
It appears as a natural threshold between the vulnerability and non-vulnerability deciles. While
the proportion of people in the lower 6 deciles of 1990 decreased in 2013, the percentage of
people in the upper 4 deciles of 1990 increased in 2013. However, the increase in real incomes
was not in the same proportion for everyone. The distribution of incomes shows an increase in
polarization in the first decile. The proportion of people in the first decile of 1990 that
remained there in 2013 did not increase their incomes in the same proportion as the people in
the rest of the deciles. This means that the poorest fraction of the population has been left
behind. Although monetary transfers increase income in the lowest decile of income
distribution, this increase is not enough to equal the increase of autonomous income in all the
rest of the deciles. The educational level of heads of household appears as the most important
variable that explains the reduction in poverty and vulnerability. Except for education, the
impact of the other variables is small. However, higher educational levels are far from
explaining all the changes in the distribution of income and its polarization.
This first paper contributes to the literature of vulnerability in several ways. First, it
provides evidence from an empirical point of view that poverty and vulnerability can be
reduced simultaneously. This means that poverty reduction does not necessarily mean an
increase in the deciles just above poverty deciles. Second, the application of the relative
distribution method to vulnerability is a contribution of this paper. The non-parametric
framework allows the analysis of the changes in vulnerability to poverty from a relative and
empirical point of view. Finally, this paper contributes to the incorporation of the concept of
polarization in vulnerability to poverty analysis. The polarization of some income groups when
poverty and vulnerability are falling can create social tension. The appearance of income
groups alienated from other groups and with a high degree of identification among themselves
must be incorporated in the research on poverty and vulnerability reduction.
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The second paper of this research moved the focus towards the characterization of
vulnerability and its differences with poverty and the middle class. The approach proposed by
López-Calva & Ortiz-Juárez (2014) was used by this paper to identify the group of people
living in vulnerability to poverty. The authors established that people in the middle class are
those who face a low degree of economic insecurity which empirically means facing a
probability of falling into poverty lower than 10%. The vulnerable group is defined as a
default: those people who are not currently in poverty but who confront a probability higher
than 10% of falling into poverty in the future. Although the second paper uses the same
probability threshold to distinguish between vulnerability and the middle class, it is also
compared with a 20% threshold of falling into poverty. The final comparison between people
in poverty, vulnerability and the middle class was made using the threshold of 10% because it
fit better with the context of Chile where the core of the Social Protection System is targeted
to the 60% most vulnerable of the population. The main advantage of this approach is that it
estimates an income threshold associated with the probability threshold of 10%. This
‘vulnerability income threshold’ represents the level of income that distinguishes between
people living in vulnerability or in the middle class. It represents income related to socio-
economic characteristics and the assets of households that demonstrate less vulnerability to
poverty as a result of idiosyncratic or asymmetric shocks (López-Calva & Ortiz-Juárez 2014).
After the estimation of this threshold, the groups of people living in poverty, vulnerability, the
middle and upper middle class were identified and compared in their socio demographic
characteristics.
The main finding of this paper is that people in vulnerability to poverty differ in their
socio- demographic characteristics and their propensity to suffer shocks with people in poverty
and those who belong to the middle class. People in vulnerability are in between those living in
poverty and the middle-class group. The results show that the group in vulnerability have more
resources to avoid deprivation than the group in poverty but not enough to be protected
against the risk of being in poverty in the future. The group of people in vulnerability have
more education, better household conditions and better qualified occupations than households
in poverty. Their household sizes are similar to those in poverty but bigger than middle class
households. They are in a younger stage in the household life-cycle than middle class
households but older than households in poverty. This is reflected through older (young)
heads of household, a lower (higher) proportion of children and a higher (lower) proportion of
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older people than households in poverty (middle class). There are more single households than
those in poverty and the same proportion of female heads of households as among middle-
class households which is higher than those in households in poverty. Finally, extended
families are more highly represented in households in vulnerability than the other two groups.
These differences stress the importance of distinguishing between these three groups for the
design and implementation of social programmes.
As expected, the paper finds an inverse relationship between higher incomes and lower
probabilities of falling into poverty. A higher probability of falling into poverty in the future is
experienced in average by people with lower incomes in the initial year. A low income means
less availability of monetary and asset resources to overcome adverse shocks that people can
experience throughout the years. A reduced availability of physical and human resources
increases the vulnerability of being in poverty in the future. In addition, the results also indicate
that the inverse relationship between higher incomes and lower probabilities of falling into
poverty is clearer up to the 20% of probability of falling into poverty. From that point
onwards, although incomes still decrease while probabilities are higher, they do so at a slower
pace. These results show the 10% and 20% degrees of probability of falling into poverty are
natural thresholds for identifying the group of people in vulnerability to poverty.
From a methodological point of view, the estimation for Chile indicates the sensitivity of
the vulnerability income threshold and the proportion of people in vulnerability, to the poverty
line under consideration. This paper uses the same 10% probability of falling into poverty as
the threshold as López-Calva & Ortiz-Juárez (2014) but instead of using the international
poverty line of US$4 PPP per day, it uses the ‘new poverty line’ used in Chile since 2013,
which is 30% higher than the international one. The results show that the vulnerability income
threshold estimated by this paper is higher than the threshold estimated by López-Calva &
Ortiz-Juárez (2014) by 20%. Furthermore, the proportion of people living in vulnerability to
poverty is also very sensitive to the vulnerability threshold selected. This happens because the
high density of people around the income thresholds associated with a 10% and 20% of
probability of falling into poverty. The recommendation is that the selection of the threshold
must be relevant to the specific context to operationalize the vulnerability to poverty
measurement. In this context, this paper uses the new poverty line implemented in Chile since
2013 and the 10% probability threshold which is connected to the 60% of the population level
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that the State of Chile uses to identify the vulnerable. These results corroborate the importance
of measuring vulnerability to poverty, as with poverty, considering the welfare standards of the
specific context.
The contributions to the literature of this paper can be summarized in two main areas.
First, it contributes to the literature on vulnerability to poverty through its conceptualization
and measurement of vulnerability to poverty. The operationalization of the approach
developed by López-Calva & Ortiz-Juárez (2014) to measure the middle class for measuring
vulnerability to poverty in a high-income country as Chile is another contribution of this paper.
In addition, it offers an estimation of a vulnerability income threshold in the same metric as
that of the poverty line. This provides an advantage in the operationalization of vulnerability to
poverty measures. Second, this paper contributes to the characterization of vulnerability. This
paper provides answers to the main questions it raised regarding the determinants of
vulnerability to poverty and the distinguishing factors between vulnerability, poverty and the
middle class. These three income groups are compared through their socio-demographic
characteristics and their exposure to suffering shocks or changes over time. This paper
contributes to the recognition of the group of people in vulnerability as a different group to
those in poverty and the middle class providing the recommendation of different social
programmes to these groups. Poverty reduction strategies should consider these differences.
The third paper of this research approaches vulnerability as the understanding of
vulnerable groups. These groups need protection from the State, in particular, protection
against poverty and destitution. This paper puts attention on two commonly recognized
vulnerable groups: children and the elderly. They are differently represented among groups in
poverty, vulnerability and the middle class. One of the findings of Paper II of this research was
that the the age composition of the household is an important determinant of poverty and
vulnerability to poverty, in part because of the distribution of public subsidies. While having
elders at home means a lower probability to being in poverty, the presence of children at home
is related to a higher probability to being in poverty. In addition, while children are the group
with the highest incidence of poverty, older people are the group with the lowest incidence of
poverty among the population in Chile. This evidence configures Chile as a country where
children face a higher probability of being in poverty today and tomorrow than older persons.
This paper explores the role of Social Assistance programmes in contributing to these
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disparities between these two vulnerable groups. For doing so, a partial fiscal incidence analysis
was carried out following the framework proposed by Commitment to Equity (CEQ97) Lustig
and Higgins (2012, 2013). The data source of this research was the 2015 National
Socioeconomic Characterization Survey (CASEN) of Chile. This paper measures the poverty exit
rate as a consequence of fiscal intervention. This means the percentage of people in poverty
who leave poverty after direct taxes and cash transfers are in place. Among the cash transfers
considered are both conditional and unconditional types, and the pensions that households
receive. Although direct taxes are considered in the analysis, they are not very important in
changes in poverty rates. The fact that households in poverty do not pay direct taxes and just a
small proportion of them pay social security contributions makes the effect of taxes on poverty
rates very small.
The findings show that both children and older people are vulnerable groups having more
prevalence of being in poverty than the average population. This answers the question
regarding the relation between vulnerability and age. Both age groups are over-represented in
poverty when only the income that their households generate is considered. This means that
before any fiscal intervention, these two age groups are those that are most prevalent in
income poverty. However, this scenario changes after direct taxes and transfers are in place.
The reduction of poverty after fiscal intervention is around 4 times greater among older
persons than among children. While children remain over-represented among the population
in poverty after cash transfers, older people are under-represented. The results show that
although both age groups are highly covered by monetary transfers, those received by the
elderly are more effective for taking them out of poverty. Not only do older persons benefit
the most by monetary transfers but also the people who live with them. The results show that
the highest poverty exit rate after monetary transfers belongs to people living in households
with older persons and no children and the lowest to people living in households with children
and no elderly. This indicates the importance of the age composition of the household to
explain the effectiveness of cash transfers in reducing poverty. The most important reason that
explains the higher effectiveness of cash transfers on exit poverty in households with older
persons is the higher amount of cash transfers that they receive. The non-contributory pension
97 The Commitment to Equity (CEQ) Institute at Tulane University. http://www.commitmentoequity.org/
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called Pensión Basica Solidaria plays the most important role in enabling the exit of poverty.
Although it is true that the fact that households with older people are smaller than households
with children is also part of the explanation behind the higher poverty exit rates in households
with elders, this is not the most important reason. The much higher exit poverty rates of
people living in households with children and older persons –the biggest in size- than for
individuals who live in households with children and no older persons indicates the fact that
having an elder at home is more important than having a small household size. Furthermore,
the cash transfers received by people who live in households with older person/s are more
effective in exiting poverty even when poverty gaps are much higher in those households than
in household with children. In addition, the results show that different monetary transfers
complement each other increasing the exit poverty rate. The exit poverty rate of households
with children but without older people increases when benefits for families are combined with
benefits for workers or with other benefits. The same is observed when benefits for families
are combined with pensions in households with older people. These results show that the
amount of per capita income that households receive as monetary transfers determines their
chances of getting out of poverty. Overall, the results of this paper show that cash transfers
have an age bias towards older persons in Chile. Cash transfers reduce in a higher proportion
the poverty rates among older persons than among children. The cash transfers targeted to
older people increases the probability of exiting poverty of all people living with them at home.
The group of people benefiting most by monetary transfers is those living with older people
and no children at home. Answering the question of this paper, cash transfers play a crucial
role shaping the relation between vulnerability and age. While children are a vulnerable group
that remains highly unprotected against poverty after fiscal intervention, the vulnerability of
older persons is reduced after fiscal intervention.
This third paper of the research contributes to the literature of vulnerability in several
important ways. First, the results of this paper provide further evidence of the effectiveness of
cash transfers in reducing poverty in a high-income country like Chile. The short-run impact of
monetary transfers on reducing poverty among beneficiaries is a contribution of this paper. A
second contribution of this paper is the comparison between the ages of the recipients of cash
transfers. This paper compares the effectiveness of cash transfers depending on the presence
of children and/or older persons in the households. The comparison between these two
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vulnerable groups raises the issue for discussion about whether Social Assistance programmes
should protect or promote. While, anti-poverty programmes targeted to children contribute to
promoting a better present and future to them, those targeted to older persons protect them
for poverty and destitution in the present. Finally, the use of a partial fiscal incidence analysis
to examine the effectiveness of cash transfers is a contribution to the literature of cash transfer
effectiveness. Fiscal incidence analysis provides a detailed framework to analyze the effects of
fiscal intervention on poverty in the short run.
5.2 Policy implications
The policy implications arising from the empirical analysis of the three research papers are
discussed in this section. Particular attention is given to social protection policies considering
their importance in poverty eradication and vulnerability reduction. Four main policy
implications are discussed in the following pages: the importance of the reduction of poverty
and vulnerability to poverty in conjunction; the recognition of vulnerability as a different state
than poverty and the middle class; the reduction of the age bias in poverty and vulnerability to
poverty and the role of monetary transfers in this; and the need of complementary benefits to
increase the effectiveness of monetary transfers in reducing poverty.
The first paper of this thesis provides new evidence to suggest that poverty reduction can
be accompanied by vulnerability reduction. This fact reduces the chances of falling into
poverty again after being out of poverty. A first message for policy makers is that, the
reduction of poverty needs reduction in vulnerability to poverty as well. The reduction of the
chances of being in poverty in the future is a necessary condition to reduce poverty. The
evidence for Chile shows that although monetary transfers have played a role in both falls, the
main driver of these reductions has been the increase in the autonomous income that the
households generate by themselves. However, these increases in real incomes have not
benefited all the population in the same proportion. The polarization of incomes in the first
decile shows that there is a group of people who did not increase their incomes in the same
proportion as people in the rest of the income deciles. Their autonomous income did not grow
at the same rate as that of the rest of the population, leaving them behind. Although monetary
transfers contributed to the decrease of the group of people concentrated in the first decile of
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income distribution, they were not enough to equalize the increase of autonomous income in
all the rest of the deciles. A second message for policy makers is that, despite the fact that
efforts must be focused on all people in poverty and vulnerability, people concentrated in the
lowest decile of the income distribution need further protection. The reduction of polarization
has been suggested because of its negative consequences increasing social tensions.
The evidence of the second paper shows that people in vulnerability have different socio-
demographic characteristics than people living in poverty or those to belong to the middle
class. Any Social Protection System that wants to reduce vulnerability to poverty must consider
these differences in the design and implementation of social programmes. The importance of
reducing vulnerability to poverty reduction makes this point even more important. Although
people in vulnerability have more resources to avoid deprivation than the group in poverty,
these are not enough to be protected against the risk of being in poverty in the future. Social
protection policies may help in improving the factors that increase the economic security of
people in vulnerability. One of the variables commonly suggested to alleviate poverty also
applies in tackling vulnerability: education. Developing the human capital that increases the
proportion of head of households in more qualified occupations is one of the suggestions.
Another option is focusing on the group of variables that define the household life-cycle. The
evidence shows that households in younger stages -measured through the age of the head of
the household, the proportion of children and the proportion of older population- face higher
economic insecurity than households in an older phase of their life-cycle. Social protection
should consider these differences in the household life-cycle of those in poverty and
vulnerability. Social programmes targeted to households with children and young parents can
contribute to reducing their levels of vulnerability. Policies oriented to increasing the offer for
childhood care, to foster hiring young workers and the incorporation of mothers in the labour
market are in this line.
The second and third papers of this thesis raise the issue of the age bias observed in
poverty, vulnerability to poverty and monetary transfers. Households with children are more
prevalent to being in poverty and vulnerability to poverty and to receiving lower cash transfers
than households with elders. Although Social Assistance programmes in Chile, and cash
transfers in particular, have contributed to poverty reduction (Martinez-Aguilar et al., 2017),
they have been more effective among older groups. Monetary transfers are biased towards
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older people reducing their incidence in poverty and vulnerability to poverty faster and deeper
than the reduction in other age groups. When fiscal interventions are biased towards older
groups and pensions, they are called occupational-based (Lynch, 2006). This kind of welfare
institutions are in opposition to those putting more attention on families, children and groups
with weak ties to the labour market, named citizenship-based. In the context of the evidence
showing the long-lasting consequences of experiencing poverty in childhood (Magnuson &
Votruba-Drzal, 2009; Melchior et al., 2007), the biased monetary transfers towards older
groups must be revisited by policy makers. Although the debate regarding which age group
should be more or less protected is open, it should be present in any conceptualization of
social programmes. A useful starting point would be that the State's protection against poverty
and destitution should not create a generational inequity that was not present before the
allocation of public resources.
The third paper of the thesis highlights the importance of the amount and the
complementarity of cash transfers in contributing to poverty reduction. A suggestion to policy
makers is to not only focus on the coverage of vulnerable groups but also, and most
importantly, put attention on the effectiveness of the benefits in protecting these groups
against poverty and destitution. The two vulnerable groups in the analysis, children and older
persons, are highly covered by monetary transfers. Those of them in poverty do not pay direct
taxes and around 90% of them receive monetary transfers from Social Assistance programmes.
However, the majority that exit poverty as a consequence of the benefits are older people.
People who live in households with older persons but without children benefit the most from
social assistance. The explanation of this is the age bias of poverty and vulnerability to poverty
explained before. Further protection for children living in households without older persons
can be a proposal in the context in which children living with grandparents are more protected
against poverty.
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5.3 Further research
The main policy implication of this thesis is that vulnerability must be recognized as a
different state of poverty and needs to be incorporated in anti-poverty strategies to eradicate
poverty. Further research to deepen knowledge of vulnerability and its operationalization
would be crucial to identify the most appropriate policies to reduce vulnerability in different
contexts. As this thesis has highlighted, the results are very dependent on normative decisions
taken locally. Poverty and vulnerability thresholds are determinants in the definition of
vulnerable groups. In this context of increasing knowledge of vulnerability, further research is
recommended in the following areas:
- The elaboration of a common theoretical framework for vulnerability to poverty from
available research. Comparison among the different approaches to understanding and
measuring vulnerability to poverty regarding the main determinants found. To move
forward in an elaboration of a common theoretical framework of vulnerability.
- Sensitivity analysis to different poverty and vulnerability thresholds can be explored
further. The evidence indicates the importance of the normative decisions that each
society takes in the identification of their populations in poverty and vulnerability. In
the same line of poverty thresholds defined from a global perspective, vulnerability
thresholds could be defined from an international point of view. Research in this area
can foster a global use of vulnerability conceptualization and operationalization.
- Vulnerability to poverty could be explored further from a multi-dimensional
perspective. In the same way that poverty measures have been extended to go beyond
the dimension of income alone, vulnerability to poverty could be studied further in this
aspect. The main challenge here is the common invariability of many of the dimensions
usually used in multidimensional measures. In other words, fluctuations in household
conditions, years of education, access to health, among others are lower than income
changes over time. Income appears as the more sensitive variable to measure the risks
and changes that people usually face.
- More and richer panel data will allow us to explore vulnerability to poverty better.
Fixed-effect or random-effect estimations can be done when panel data captures more
variables that change throughout the time.
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- Vulnerability to poverty in childhood appears as a main topic for future research. The
evidence confirms the higher incidence of children in poverty and vulnerability to
poverty than the rest of the age groups. The importance of tackling vulnerability to
poverty is even more important in the case of children. Developing, introducing,
evaluating and assessing mechanisms to tackle vulnerability among the youngest
population are all areas that need more research.
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5.4 References
Chen, S., & Ravallion, M. (2004). How Have the World’s Poorest Fared since the Early 1980s? The World Bank Research Observer, 19(2), 141–169. https://doi.org/10.1093/wbro/lkh020
Handcock, M. S., & Morris, M. (1998). Relative Distribution Methods. American Sociological Association, 28, 53–97.
Handcock, M. S., & Morris, M. (1999). Relative distribution methods in the social sciences. New York: Springer.
López-Calva, L. F., & Ortiz-Juárez, E. (2011). A Vulnerability Approach to the Definition of the Middle Class. Policy Research Working Paper 5902. The World Bank.
Lustig, N., & Higgins, S. (2012). Commitment to Equity Assessment (CEQ): Estimating the Incidence of Taxes and Benefits Handbook. Tulane Economics Department Working Paper and CIPR (Center for Inter-American Policy & Research) Working Paper, New Orleans, Louisiana, July.
Lustig, N., & Higgins, S. (2013). Commitment to equity assessment (ceq): Estimating the incidence of social spending, subsidies and taxes handbook. CEQ Working Paper.
Lynch, J. (2006). Age in the welfare state: the origins of social spending on pensioners, workers, and children.
Cambridge ; New York: Cambridge University Press.
Magnuson, K., & Votruba-Drzal, E. (2009). Enduring influences on childhood poverty. In Changing Poverty, Changing Policies. Focus. New York: Russell Sage Foundation.
Martinez-Aguilar, S., Fuchs, A., Ortiz-Juarez, E., & Del Carmen, G. (2017). The Impact of Fiscal Policy on Inequality and Poverty in Chile. Policy Research working paper,no. WPS 7939;; Policy Research Working Paper;No. 7939. World Bank, Washington, DC. © World Bank. https://openknowledge.worldbank.org/handle/10986/25948 License: CC BY 3.0 IGO.”.
Melchior, M., Moffitt, T. E., Milne, B. J., Poulton, R., & Caspi, A. (2007). Why Do Children from Socioeconomically Disadvantaged Families Suffer from Poor Health When They Reach Adulthood? A Life-Course Study. American Journal of Epidemiology, 166(8), 966–974. https://doi.org/10.1093/aje/kwm155
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