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  • 7/23/2019 Efektivitas, objektivitas dan transparansi audit.pdf

    1/7

    Inside environmental auditing: effectiveness, objectivity,and transparencyWilliam

    Cook1, Severine

    van

    Bommel2 and

    Esther

    Turnhout1

    With

    the

    rise

    of

    non-traditional

    governance

    methods,

    the

    third

    party audit has become a critical part of governing through and

    with

    information.

    Third

    party

    audits

    are

    considered

    an

    integral

    part of the process of the generation and dissemination of

    credible

    information,

    and

    are

    subject

    to

    critique

    and

    praise.

    In this article, we take stock of the literature about auditing.

    In particular we will examine what modes of auditing are

    distinguished

    and

    how

    norms

    of

    transparency,

    objectivity,

    and

    effectiveness are attributed to auditing. Our review shows that

    the majority of the auditing literature evokes these norms in an

    uncritical

    fashion

    as

    characteristics

    of

    good

    audits

    or

    as

    things

    that audits fail to achieve. We conclude our article by

    advocating

    for

    a

    more

    grounded

    examination

    of

    transparency,objectivity

    and

    effectiveness,

    not

    as

    norms

    that

    can

    be

    used

    to

    separate

    good

    from

    bad

    audits,

    but

    as

    they

    are

    enacted

    during

    the audit

    process.

    Addresses1Forest and Nature Conservation Policy Group, Wageningen University,

    P.O. Box 47, 6700 AA Wageningen, The Netherlands2Strategic Communication Group, Wageningen University, P.O. Box

    8130, 6700 AA Wageningen, The Netherlands

    Corresponding author: Cook, William ([email protected])

    Current Opinion in Environmental Sustainability2016, 18:3339

    This review comes from a themed issue onSustainabilitygovernance

    and transformation

    Edited by Bertrum MacDonald, Katrien Termeer, Paul Opdam and

    Katrine Soma

    Received: 10 March 2015; Revised: 21 July 2015; Accepted: 25 July

    2015

    http://dx.doi.org/10.1016/j.cosust.2015.07.016

    1877-3435/# 2015 Elsevier B.V. All rights reserved.

    Introduction to environmental auditingAuditing

    has

    become

    a

    ubiquitous

    phenomenon

    in

    many

    public and

    private

    institutions

    including

    government

    institutions, universities

    and

    businesses.

    The

    term

    audit-

    ing can

    refer

    to

    a

    process,

    a tool,

    or

    a

    policy

    instrument

    depending

    on

    the

    source.

    It

    has

    its

    roots

    in

    the

    financial

    domain, wherein

    an

    auditor

    would verify

    the

    financial

    account of

    an

    organisation

    or

    individual

    [1].

    Following

    the

    audit explosion of the 1970s and 1980s [1], auditing asa tool

    for

    management

    began

    to

    percolate

    into

    other

    fields.

    Within

    the

    environmental

    domain,

    auditing

    has

    risen

    as

    an important policy instrument to both assess and

    improve the

    performance

    of

    environmental

    policies

    and

    programs [1]. Ultimately,

    however,

    auditing

    refers

    to

    the

    process

    of

    assessing

    the

    performance

    of

    organisations

    or

    institutions, often

    by

    using

    certain

    criteria,

    such

    as

    effec-

    tiveness or

    efficiency,

    often

    against

    a

    specified

    standard

    [2].

    With its

    focus

    on

    the

    generation

    of

    information

    for

    pur-

    poses of

    governance,

    auditing

    can

    be

    seen

    as

    part

    of

    what

    has been

    dubbed

    informational

    governance

    [3]

    or

    gover-

    nance by

    disclosure

    [4,5].

    The

    main

    idea

    of

    auditing

    inrelation

    to

    governance

    is

    to

    increase

    possibilities

    for

    public oversight

    of

    all

    forms

    of

    governance

    including

    environmental governance.

    Increased

    transparency

    by

    means of

    the

    disclosure

    of

    information

    is

    assumed

    to

    make such

    oversight

    possible.

    This

    idea

    took

    on

    new

    meaning when business ideals of new public manage-ment were

    transposed

    to

    the

    public

    sector

    and

    effective-

    ness and efficiency became important standards to judge

    performance

    by

    [6].

    Currently,

    there

    is

    a wide

    diversity

    of

    auditing

    approaches

    and the products of these approaches may fulfil different

    needs

    and

    are

    aimed

    at

    different

    audiences

    (see

    Figure

    1).There are also debates as towhat thebest form of auditing

    is. Some

    authors

    argue

    that

    regardless

    of

    their

    audiences,purposes, and

    fields

    of

    application,

    audits

    are

    best

    (or

    should only

    be)

    performed

    by

    financial

    auditors

    as

    the

    principles

    of

    auditing

    remain

    the

    same

    regardless

    of the

    audit type or setting [7].This generally agreeswith Power

    [1,8,9] who

    considers

    many

    forms

    of

    environmental

    audit-

    ing to

    be

    comparable

    when

    discussing

    principles.

    How-

    ever, on

    could

    argue

    that

    environmental

    auditing

    is

    a

    special case

    because

    it

    is

    often

    difficult

    to

    assess

    improve-

    ments in

    environmental

    quality

    in

    specific

    sites

    on

    the

    basis of

    generic

    standards

    and

    criteria

    and

    even

    more

    difficult

    to

    demonstrate

    that

    these

    improvements

    are

    theresult of

    specific

    measures.

    Environmental

    auditing

    thus,

    poses specific

    challenges

    for

    auditors

    when

    they

    are

    faced

    with the

    task

    of

    interpreting

    and

    applying

    the

    standards

    [10,11].

    In this

    paper,

    we

    review

    the

    current

    state

    of

    the

    art

    literature about auditing

    in

    the

    environmental

    domain.

    We use

    a critical

    social

    science

    lens

    inspired

    amongst

    others

    by

    critical

    accounting

    studies,

    science

    and

    tech-

    nology studies

    and

    political

    ecology

    to

    not

    only

    look

    at

    the

    quality of auditing system or their purported effects, but

    Available online at www.sciencedirect.com

    ScienceDirect

    www.sciencedirect.com Current Opinion in Environmental Sustainability2016, 18:3339

    mailto:[email protected]://dx.doi.org/10.1016/j.cosust.2015.07.016http://www.sciencedirect.com/science/journal/18773435http://www.sciencedirect.com/science/journal/18773435http://dx.doi.org/10.1016/j.cosust.2015.07.016mailto:[email protected]://crossmark.crossref.org/dialog/?doi=10.1016/j.cosust.2015.07.016&domain=pdf
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    2/7

    also

    examine

    how

    auditing

    practices

    work;

    how

    they

    produce information and align this with standards, andcriteria in order to make assessment or evaluation possi-ble. We

    have

    structured

    our

    review

    as

    follows:

    first

    we

    take stock

    of

    the

    mainstream

    literature

    about

    auditing

    both in

    the

    financial

    and

    in

    the

    environmental

    domain.This will

    help

    to

    clarify

    what

    the

    main

    focus

    is

    of

    academic debates on auditing. On the basis of that, we

    proceed by

    examining

    three

    main

    defining

    features

    of

    what is considered to be a good audit: objectivity, trans-

    parency and

    effectiveness.

    We

    end

    our

    article

    with

    a

    discussion of the

    main

    blind

    spots

    in

    current

    auditing

    research,

    arguing

    for

    the

    importance

    of

    critical

    social

    science enquiry

    into

    the

    practice

    of

    auditing.

    Environmental auditing in literatureThe

    literature

    surrounding

    environmental

    auditing

    is

    diverse and

    wide

    ranging,

    encompassing

    many

    different

    schools of

    thought,

    methods,

    and

    contexts.

    Here

    we

    first

    highlight a

    novel

    way

    to

    think

    about

    environmental

    auditing which

    we

    have

    termed

    modes

    of

    auditing.

    It provides

    a way

    to

    discuss

    the

    contextual

    understanding

    between

    auditor

    and

    auditee

    about

    what

    audits

    are

    meant

    to achieve and how they are to be performed.While this isnot new,

    we

    found

    that

    is

    has

    not

    been

    taken

    up

    in

    the

    larger academic discussion about auditing. Secondly, we

    demarcate

    three

    audit

    characteristics

    that

    are

    commonly

    discussed:

    transparency,

    objectivity

    and

    effectiveness.

    Incontrast to

    modes

    of

    auditing,

    these

    are

    well

    established

    themes in

    the

    literature.

    Modes of auditing

    As

    auditing

    has

    become

    increasingly

    popular

    and

    used

    in

    the toolbox

    of

    environmental

    management,

    the

    promi-

    nent style,

    or mode,

    of

    auditing

    has

    been

    in

    a

    state

    of

    flux

    between two

    similar

    but

    distinct

    definitions:

    (1) concept

    of

    examination

    and

    assessment

    of perfor-

    mance [2]

    (2)

    systematic,

    independent

    and

    documented

    process

    for obtaining audit evidence and evaluating itobjectively to

    determine

    the

    extent

    to

    which

    the

    audit criteria

    are

    fulfilled

    [12]

    The

    first

    definition

    is

    general and

    lacks

    a

    number

    of

    details

    on the

    how that

    are

    present

    in

    the

    second,

    namely

    that it should be systematic, independent, objective

    and evidence-based.

    Furthermore,

    the

    first

    definition

    leaves its

    key

    term

    entirely

    uncharacterised.

    What

    is

    meant by

    assessment

    or

    examination?

    Against

    what

    is

    it

    performance

    assessed?

    Nevertheless,

    it

    focuses

    on

    judg-

    ing management

    performance

    without

    concern

    for

    mech-

    anistic details

    of

    what

    an

    audit

    is

    or

    how

    it

    is

    performed.

    The second definition is, arguably, more complete. Itcertainly

    makes

    an

    effort

    to

    establish

    the

    details

    of

    what

    an audit

    is,

    as

    is

    evidenced

    by

    additional

    adjectives

    and

    adverbs. It

    also

    solves

    the

    issue

    of

    the

    previous

    definition

    by making

    it

    clear

    that

    performance

    is

    being

    assessed

    against audit

    criteria.

    This

    additional

    specificity

    gives

    auditors

    and

    auditees

    more

    clear

    expectations

    of

    how

    audits should be performed, but it also burdens theprocess

    with

    being

    more

    rigid,

    and

    being

    linked,

    concep-

    tually, to notions of evidence, objectivity and evaluation.

    This second

    definition

    has

    gained

    ground

    in

    the

    tradi-

    tional understanding of auditing because of its specificity.

    This progress

    towards

    auditing

    becoming

    strictly defined

    activity, co-evolved

    with

    the

    emergence

    of

    differentmodes of

    auditing

    which

    differ

    in

    terms

    of

    the

    style

    in

    which an

    audit

    is

    done

    and

    the

    functions

    it

    fulfils.

    According to

    Power

    [1]

    environmental

    auditing

    started

    as

    an activity

    in

    which

    outside

    groups

    wanted

    to

    gain

    more

    insight

    into

    the

    environmental

    effects

    of

    certain

    organisa-

    tions

    such

    as

    industry

    and

    began

    questioning

    traditional

    accountability structures.

    As

    such, environmental

    audit-

    ing was

    not

    clearly specified

    in

    terms

    of

    standards

    and

    criteria or in terms of the kind of information thatwas needed.

    However,

    with

    time,

    principles

    of financial

    34 Sustainability governance and transformation

    Figure 1

    Internal

    actors

    Internal actors

    Management audit Accounting Compliance audit

    Annual disclosure Environmental reports NGO social audits

    Regulators reports Environmental consult Stakeholder research

    Cerfification audit Pressure group audits Trade union reports

    External actors

    External

    actors

    Report

    Audience

    Report Compilers

    1. 2.

    4. 3.

    Current Opinion in Environmental Sustainability

    Summary of the types of internal and external audits. Quadrant 1 represents purely internal audits, while quadrant 3 represents purely external

    audits, such as certification audits.

    Adapted from Gray [7].

    Current Opinion in Environmental Sustainability2016, 18:3339 www.sciencedirect.com

  • 7/23/2019 Efektivitas, objektivitas dan transparansi audit.pdf

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    auditing,

    which

    had

    a

    much

    longer

    history,

    increasinglystarted to

    invade

    environmental

    auditing.

    Environmental

    auditing became more strictly defined along the lines of

    the second

    definition

    and

    it

    professionalized.

    We

    can

    now

    look at auditing as consisting of differentmodes that exist

    on a spectrum

    between

    professionalisation,

    what

    wecall professionalism,

    and

    protest

    [8].

    Professional

    auditing is

    representative

    of

    a

    more

    strict

    view

    of

    auditing,

    as it

    arose

    from

    financial auditing.

    This

    view

    posits

    audits

    as the

    neutral

    monitoring

    of

    pre-existing

    information

    against stated

    criteria

    [8].

    In

    contrast,

    protest

    auditing

    is not

    necessarily

    restricted

    to

    pre-existing

    information

    or

    to stated

    criteria.

    It

    can

    make

    use

    of

    a

    wider

    scope

    of

    normative yardsticks

    to

    evaluate

    environmental

    perfor-

    mance against,

    for

    example

    with

    the

    aim

    to

    raise

    aware-

    ness of

    specific

    environmental

    problems

    and

    their

    causes.

    Thus, the

    difference

    between

    the

    poles

    of the

    protest-

    professionalism spectrum, and their associated defini-

    tions, is that they [render] selectively visible [8] differ-

    ent types of evidence in accordance with different

    standards and

    criteria

    which

    may

    result different

    out-comes in

    terms

    of

    performance.

    Within

    a single

    audit

    process,

    these

    modes

    can

    lead

    to

    different

    expectations

    and tensions

    between

    the

    actors

    involved;

    the

    audit

    procedures prescribe audits to be professional while

    the expectations

    of stakeholder,

    and

    in

    some

    cases

    also

    auditors, are

    more

    protest

    oriented

    [10,13].

    Despite

    the

    importance of

    these

    differences,

    the

    different

    modes

    of

    auditing are

    often

    implicit.

    Not

    many

    authors

    actively

    engage with

    the

    mode

    of

    auditing

    to

    which

    their

    analysis

    subjects

    subscribe,

    nor

    do

    they

    reflexively

    consider

    what

    modeof auditing they themselves use. As wewill argue inmore detail

    later,

    by

    scrutinizing

    auditing

    practices

    we

    may gain

    insight

    into

    where

    an

    audit

    falls

    between

    protest

    and professionalism,

    and

    thereby

    better

    understand

    which audit

    characteristics

    are

    considered

    important

    and why.

    Audit characteristics

    While

    the

    modes

    of

    auditing

    discussed

    in

    the

    previous

    section are largely unexplored, there is a body of literature

    that discusses

    the

    characteristics

    of

    audits.

    Out

    of

    this

    literature, three main themes arise: effectiveness, objec-

    tivity/neutrality,

    and

    transparency.

    As

    we

    will

    show

    in

    this

    section, these

    characteristics

    are

    often

    simply

    posited

    asdefining features

    of

    an

    audit,

    or

    used

    as

    criteria

    to

    evaluate

    the quality

    of

    an

    audit.

    Effectiveness

    We

    see

    a

    distinction

    between

    two

    types

    of

    effectiveness

    in the

    auditing

    literature.

    The

    first

    type

    focuses

    on

    how

    audits are

    performed.

    Studies

    relating

    to

    this

    internal

    effectiveness

    focus

    on

    questions

    such

    as

    Are

    audits

    being performed

    in

    an

    effective

    manner?

    This

    is

    an

    entirely self-contained or self-referential topic as it is onlyconcerned

    with

    the

    workings

    of

    an

    audit

    and

    how

    audits

    can

    be

    better

    performed,

    regardless

    of

    the

    outcome.

    Gray[7] provides

    an

    example

    of

    how

    the

    internal

    processes

    of

    audits are judged as effective or ineffective. The author

    examines the

    individual

    skills

    and

    backgrounds

    of

    the

    auditors. Based on their background skills, the author

    then makes

    a judgement

    as

    to

    who

    would

    perform

    thebetter audit.

    Herbohn

    [14]

    also

    devotes

    effort

    to

    describ-

    ing the

    points

    in

    the

    auditing

    process

    where

    the

    outcome

    of the

    audit

    would be

    improved

    if

    the

    inner

    working

    were

    streamlined

    or

    enhanced.

    Thus,

    this

    part

    of

    the

    literature

    is mainly

    concerned

    with

    best

    practices

    in

    auditing.

    The second

    type

    of

    effectiveness

    focuses

    on

    the

    effects

    of

    auditing

    on

    the

    world

    outside

    the

    auditing

    unit

    and

    addresses questions

    such

    as

    Are

    audits

    effecting

    the

    change their

    standards

    claim?

    This

    is

    linked

    with

    the,

    sometimes

    implicit,

    problem

    audits

    are

    meant

    to

    solve

    in

    a field

    of

    management.

    If

    organisations

    are

    able

    to

    show

    that they contribute to solving these problems through

    audits, the audit is in that sense effective.By having these

    audits, these organisations receive the seal of approval for

    following some

    form

    of

    best

    practice

    in

    achieving

    envi-ronmental

    goals,

    and

    they

    are

    therefore

    either

    allowed

    to

    enter

    a

    market,

    or

    are

    more

    likely

    to

    increase

    their

    market

    share [15,16]. This

    can

    be

    shown

    as

    a

    concern

    for

    specific

    outcomes, such as minimising environmental impacts of

    tourism

    [17],

    increasing

    stakeholder

    involvement

    in

    forest

    management [18],

    or

    more

    comprehensive

    improvements

    of overall

    performance

    [1921].

    Also

    authors

    that

    focus

    on

    the effectiveness

    of

    the

    larger

    certification

    system

    are,

    by

    extension, concerned

    with

    the

    effectiveness

    of

    audits

    [22].

    Moor,

    Cubbage,

    and Eicheldinger [23]

    provide a clear

    example

    of

    the

    uncritical

    focus on

    environmental

    ac-

    counting

    effectiveness. By performing an

    e-mail

    survey

    of forest managers, the

    authors

    quantify

    the changes

    in

    forest management

    practices,

    concluding that

    all

    [111]

    firms changed many

    practices

    in

    forest management,

    environmental protection, community relations, publicaffairs,

    economic,

    and

    environmental

    management sys-

    tems to receive [Forestry Stewardship Council or Sus-

    tainable

    Forestry Initiative]

    certification

    ([23],

    p. 86).

    Without engaging with the normative values, the ac-

    counting

    is

    assessed

    in

    terms

    of how it

    results in

    managerial

    changes, and

    therefore

    in

    environmentalchanges.

    Objectivity/neutrality

    The

    second

    thematic

    topic

    that emerges

    in

    the

    literature

    deals with

    the

    idea

    of

    objectivity

    or

    neutrality.

    While

    according

    to

    Power

    [9], it

    is

    well

    established

    that

    audit-

    ing is

    not

    neutralor

    objective,

    the

    majority of

    the

    literature

    is remarkably

    silent

    on

    this

    issue.

    Authors

    either

    do

    not

    engagewith

    the

    issue

    at

    all,

    or

    simply

    assert

    that

    audits

    are

    objective. Shapiro [24] noticed that auditors themselvesoften claim

    the

    position

    of

    impartial

    guardians,

    and

    this

    Inside

    environmental

    auditing Cook, van Bommel and Turnhout 35

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    was echoed

    in

    contemporary

    academic

    works

    such

    asTomlinson and

    Atkinson

    [2]. Other

    recent

    authors

    accept

    theidea ofneutrality as a defining feature of audits without

    meaningfully engaging

    with it

    [25,26,27].

    Rau and

    Moser

    [28] performed an experiment to test the effects of bias on

    auditors ability

    to

    perform

    their

    ongoing

    audit

    activities.We infer

    that

    the

    authors

    indicate

    that un-biased

    (objec-

    tive) auditor

    behaviour is

    the

    idealized

    behaviour. Auditors

    deviate

    from

    this

    ideal

    due

    to

    external

    influences.

    Thus,

    in

    most auditing

    studies,

    the

    idea

    of

    objectivity

    or

    neutrality

    has become

    a given;

    something

    that is

    propagated

    as

    a

    characteristic of

    auditing

    or

    as

    a norm

    for

    good

    audits.

    A relatively

    small

    part

    of

    the

    social

    science

    literature

    about auditing,

    or

    about other

    forms of

    bureaucratic

    knowledge production,

    is

    concerned

    with

    how

    objectivity

    and neutrality

    are

    mobilized

    during

    auditing

    processes.

    This literature

    documents

    the

    more

    complex

    relationship

    between the auditors and the knowledge that they pro-

    duce.Robertson [11] argues that the process of generating

    formal information for purposes of bureaucratic control (in

    his case

    wetland

    banking)

    involves

    various

    steps

    duringwhich the

    indeterminacy

    of

    the

    field

    is

    erased

    and

    codi-

    fied by

    means

    of

    principally

    unstable

    forms

    of

    knowledge,

    such as

    species

    identification.

    Similarly,

    ethnographic

    accounts of auditing show how auditors cannot remain

    removed

    from

    the

    situation

    in

    which

    they

    are

    placed,

    but

    at the

    same

    time

    must

    present

    their

    information

    as

    objective and

    neutral

    [10,29,30].

    Thus,

    while

    it

    is

    cru-

    cially important

    for

    auditing

    information

    to

    be

    seen

    as

    objective, these

    studies

    show

    that

    the

    production

    of

    objectivity is

    situated

    in

    the

    actual practices

    of

    auditing.

    Transparency

    The

    final

    theme

    we

    wish

    to

    highlight

    in

    the

    literature

    on

    the topic

    of

    environmental

    auditing

    is

    the

    issue

    of

    trans-

    parency. This

    topic

    is

    evoked

    primarily

    in

    terms

    of

    how

    it

    relates fundamentally

    to

    processes

    of

    openness,

    truth-

    telling and

    accountability.

    This

    particular

    way

    of

    placing

    transparency in the system of auditing is discussed byLamberton

    [31].

    Figure

    2

    highlights

    that

    for

    Lamberton,

    transparency is seen as absolutely fundamental to the

    auditability

    of

    a system,

    in

    order

    for

    an

    audit

    to

    be

    effective, the system in which it resides, the certification

    standards

    and

    auditing

    procedures,

    must

    be

    transparent.

    This resonates

    well

    with

    the

    literature

    about

    information-al governance,

    which

    promotes

    transparency

    as

    something

    self-evident and

    benign

    [3,5].

    However, in

    contrast

    to

    what

    Figure

    2

    suggests,

    transpar-

    ency is

    not

    always

    the

    starting

    point

    of

    audits.

    A

    number

    of authors

    argue

    that

    complex

    systems

    are

    inherently

    opaque,

    in

    that

    their

    development

    is

    not

    observable

    by

    outside actors,

    and

    that

    in

    order

    for

    audits

    to

    be

    effective,

    theymake

    sense

    of

    this

    opacity.

    Pentland

    [30]

    presents

    an

    example of auditing without transparency where auditorsin show

    their

    work

    by

    constructing

    a

    set

    of

    terms

    as

    opaque as the management system they are auditing.Asdal [32]

    demonstrates

    how

    transparency

    can

    be

    seen

    as the

    result

    of

    the

    auditing

    rather

    than

    its

    starting

    point.

    Eden [10]

    echoes

    this

    using

    ethnographic

    methods

    to

    highlight

    how

    auditors

    work

    with

    auditees

    to

    make

    envi-

    ronmental

    standards

    fieldworthy,

    or actionable,

    in

    the

    field. In

    this

    work,

    auditees

    and

    auditors

    strive

    together

    and against each other to define key terms of the audit.One such

    example

    is

    the

    idea

    of

    what

    a

    clump

    of

    trees

    is. The author concludes that the auditors and auditees

    together

    define

    the

    meaning

    of

    the

    standards

    in

    a

    process

    that is impossible to observe outside the audit in action.

    This stands

    in

    opposition

    to

    the

    notion

    that

    audits

    are

    performed

    against

    pre-defined

    standards,

    which

    is

    a keyaspect of

    auditing.

    Finally

    there

    are

    authors

    that

    interrogate

    the

    very

    idea

    of

    transparency

    and

    suggest

    that

    it

    is

    something

    that

    is

    constructed

    rather

    than

    a pre-existent

    characteristic

    of

    a

    system(Strathern

    [33],

    as

    well

    as

    others

    [4,6,34,35]).

    This

    literature argues

    that

    while

    audits

    are

    effective

    only

    on

    transparent

    systems;

    it

    is

    the

    audits

    that

    make

    systems

    transparent.

    However,

    this

    transparency

    is

    never

    a ful-

    filled ideal

    but

    always

    partial

    and

    conditional.

    Neyland

    [36] offers

    a

    succinct

    analysis

    of

    how

    this

    works.

    He

    36 Sustainability governance and transformation

    Figure 2

    Transparency

    Inclusiveness

    Audit

    informationcharacteristics

    What

    information

    Quality of

    information

    How to report

    information

    Auditability

    Informs

    Current Opinion in Environmental Sustainability

    Example of conceptualisation of transparency as the base aspect of

    the auditability of a system.

    Adapted from Lamberton [31].

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    argued

    that

    auditing

    involved

    the

    mobilization

    of

    visi-bles in

    order

    to

    support

    the

    claim

    of

    transparency,

    even

    if

    it does not improve an organizations functioning. In this

    way, transparency

    is

    actually

    more

    about

    overlaying

    a

    veneer of transparency over a body of working that

    remains otherwise

    opaque.

    While many

    authors

    acknowledge

    how

    transparency

    is

    a

    construct of

    the

    auditing

    process,

    the

    presence

    of

    a

    recent,

    very clear,

    model

    with

    transparency

    as

    a

    starting

    point

    indicates there

    is

    still

    a notion

    that

    transparency

    is

    some-

    how external

    to

    the

    process,

    as

    a condition

    for

    auditing

    or

    as an

    objective

    that

    can

    be

    achieved.

    Moreover,

    a lack

    of

    examples examining

    transparency

    underlines

    a

    general

    trend in

    accepting

    it

    as

    a

    given

    part

    of

    the

    audit

    process

    [27].

    Scrutinizing the effects of auditingThe overall effect of the literature is a division between

    three general strands in the auditing literature. First,

    there is instrumental literature that tends to be descrip-

    tive in

    nature,

    and

    as

    such

    provides

    a

    tremendous

    amountof insights

    into

    how

    audits

    take

    place.

    However,

    it

    tends

    to avoid

    challenging

    the

    assumptions

    of

    more

    traditional

    views of

    auditing

    [3739]. It is often concerned with

    discussing whether audits are being performed effective-

    ly, whether

    an

    audit

    has

    effects

    on

    management

    practice,

    andwhether

    audits

    are

    neutral,

    objective

    and

    transparent.

    Instrumentalist

    auditing

    studies

    may

    critique

    auditing

    for

    not having

    achieved

    objectivity

    or

    transparency

    in

    audit-

    ing, but

    generally

    consider

    those

    characteristics

    as

    things

    that are

    assumed

    to

    simply

    exist

    and

    can

    be

    assessed

    in

    a

    straightforwardway.Thus, in this literature, the criteria ofobjectivity/neutrality

    and

    transparency

    go

    unchallenged,

    and in

    some

    cases,

    they

    act

    as

    the

    jumping-off

    point

    for

    the whole

    system.

    Second, there

    is

    critical

    literature,

    which

    asserts

    that

    auditing is

    not

    objective

    or

    neutral

    and

    that

    transparency

    is not conditional for audits to take place. This literatureexposes audits

    as

    something

    else

    opaque,

    subjec-

    tive than they portray themselves to be and argues

    that objectivity,

    neutrality

    and

    transparency

    are

    unattain-

    able. We also note that despite these profound criticisms,

    the first

    camp

    continues

    without

    taking

    notice

    of the

    critical

    literature

    and

    without

    engaging

    fundamentallywith the

    audit

    characteristics

    discussed

    in

    this

    paper.

    Indeed, it

    seems

    that

    the

    instrumentalist

    literature

    con-

    tinues to

    expand

    at

    a

    rate

    that

    outstrips

    the

    critical

    literature.

    While these

    two

    strands

    of

    literature

    differ

    in

    how

    they

    view a possible

    lack

    of

    objectivity

    and

    transparency

    as

    a problem

    to

    be

    solved

    in

    the

    instrumental

    camp

    or

    as

    an

    inevitability

    in

    the

    critical

    camp

    both

    are

    to

    some

    extent similar in their reification of objectivity and trans-parency. We

    suggest

    that

    by

    glazing

    over

    the

    question

    how

    auditors

    and

    auditees

    think,

    frame

    and

    enact

    auditsas objective/neutral

    or

    transparent,

    both

    camps

    in

    the

    literature tend to discount the agencies of the auditors

    and the

    auditees.

    This

    is

    taken

    up

    explicitly

    in

    the

    third

    strand of auditing literature [30,40,41]. These studies do

    not uncritically

    evoke

    objectivity,

    effectivity

    and

    trans-parency, nor

    do

    they

    dismiss

    them.

    Instead,

    they

    offer

    detailed analyses

    of

    how

    auditors

    and

    auditees

    go

    about

    constructing, negotiating,

    and

    reconstructing

    their

    repre-

    sentations of

    effectiveness,

    objectivity

    and

    transparency

    during an

    audit.

    Eden

    [10]

    once

    again

    provides

    an

    excel-

    lent example

    by

    carefully

    examining

    the

    utterances

    and

    actions during

    the

    audit

    process.

    In

    order

    to

    determine

    the

    naturalness

    of

    older

    forests,

    auditors

    and

    auditees

    engaged

    in

    considerable

    amounts

    of

    to

    ensure

    that

    dead-

    wood measurements

    (as

    an

    example)

    are

    presented

    as

    factually

    representative

    of

    naturalness

    in

    the

    audit

    report. Thus,

    the

    integrity

    of

    the

    audit

    is

    produced

    not

    necessarily through accurate reporting, but rather through

    practical negotiation and construction. In order to have a

    more grounded appreciation of what auditing does and

    how it

    produces

    its

    effects

    (which

    is

    not

    the

    same

    asasking

    about

    its

    effectiveness)

    more

    such

    studies

    of

    auditing

    practices

    in

    the

    environmental

    domain

    are

    nec-

    essary.

    Thesestudies

    wouldbenefit

    from

    including

    what

    we

    have

    termed modes

    of

    auditing.

    We

    assert

    that

    considering

    the mode

    of

    auditing

    provides

    valuable

    contextual

    infor-

    mation. It

    reveals

    how

    the

    way

    in

    which

    an

    audit

    is

    conceptualized

    by

    both

    the

    auditor

    and

    the

    auditee,

    alters

    the expectations

    of

    how

    an

    audit

    is

    performed

    and

    how

    its

    outcome is received. Examining the working definition ofwhat an

    audit

    is

    provides

    insight

    into

    where

    along

    the

    spectrum

    an

    audit

    might

    fall.

    This

    means

    considering

    the

    spectrum

    of

    modes

    would be

    useful

    in

    fieldwork

    when

    considering auditor

    and

    auditee

    behaviour.

    The

    mode

    of

    auditing

    therefore

    interacts

    with

    the

    characteristics

    of

    the

    audit in

    largely

    unexplored

    ways,

    leaving

    a

    considerable

    blind spot in how we understand audits. Unfortunately,there

    seems

    to

    be

    a disconnect

    between

    those

    studies

    that

    wish to consider the definition of auditing and those

    studies that

    are

    concerned

    with

    actually

    performing

    an

    audit. Power [1] argues that focus should be on the effects

    of auditing

    rather

    than

    the

    intentions

    behind

    it.

    While

    we

    agree with

    this

    point

    to

    a

    degree,

    the

    lack

    of

    criticalconcern for

    the

    assumed

    principles

    and

    definitions

    behind

    each audit

    leads

    analyses

    missing

    data

    that

    can

    calibrate

    the entire

    discussion.

    Specifically,

    we

    argue

    that

    bypass-

    ing discussions

    regarding

    more

    basic

    assumptions

    such

    as

    what does

    it

    mean

    to

    be

    effective,

    or

    how

    effectiveness

    is performed,

    limits

    exploration

    of

    the

    wherefores

    behind

    audit (in)effectiveness.

    Figure 3

    demonstrates

    how

    these

    ideas

    can

    be

    linked.

    First, we can see how the two ends of the modes ofauditing

    spectrum

    can

    be

    linked

    to

    concrete

    definitions

    of

    Inside

    environmental

    auditing Cook, van Bommel and Turnhout 37

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    auditing,

    and

    how

    different

    modes

    are

    more

    closely

    related to

    different

    audit

    characteristics.

    We

    wouldexpect

    to see

    correlation

    in

    investigations

    into

    auditing

    between

    the mode

    and

    the

    focus

    of

    how

    an

    audit

    is

    performed.

    Audits and

    auditors

    that

    are

    more

    concerned

    with

    profes-

    sionalism, we would expect focus more on issues of

    objectivity/neutrality. McDermotts study [11] shows

    how Forest Stewardship Council (FSC) ISO-ized

    (i.e. professionalized)

    their

    processes

    in

    order

    to

    signalimpartiality.

    The

    author

    goes

    on

    to

    describe

    how

    forestry

    industry

    representatives

    were

    against

    highly

    procedural,

    prescriptive

    audit

    processes.

    This

    implies

    that

    those

    entitiesmore concernedwith professionalism desire audi-

    tors to

    have

    more

    freedom

    to

    make

    perform

    audit

    pro-

    cedures without

    having

    to

    show

    every

    step

    they

    take.

    Environmentalists,

    on

    the

    other

    hand,

    lobbied

    for

    certi-

    fier proof

    ([29],

    p.

    8)

    standards.

    In

    this

    view,

    transpar-

    ency is

    inextricably

    linked

    with

    the

    notion

    of

    protest.

    Elad

    [13]

    also

    links

    protest

    and

    transparency

    particularly.

    In

    this example unscrupulous forest managers strive toactively use

    corporate

    social

    disclosures

    to

    defend

    their

    companys

    enlightened

    self-interests,

    or

    to

    deflect

    unde-

    sirable stakeholder

    demands

    ([13],

    p.

    649)

    by

    not

    thor-

    oughly explaining

    key

    audit

    terms.

    We

    therefore

    see

    objectivity/neutrality

    linked

    to

    professionalism

    and

    trans-

    parency linked

    to

    protest.

    Effectiveness

    is

    the

    thread

    that

    runs through all modes of auditing literature. Regardlessof the

    normative

    value

    placed

    on

    the

    auditing

    process,

    there is always concern for either the external or internal

    effectiveness,

    as

    was

    evident

    in

    the

    literature

    discussed.

    We acknowledge,

    of

    course,

    that

    this

    model

    only

    deals

    with the

    extremes,

    and

    in

    reality,

    audits

    processes

    fallsomewhere in

    between

    the

    two

    poles,

    but

    being

    the

    subject

    to

    which

    the

    concepts

    are

    applied,

    they

    do

    not

    appear

    on

    the

    diagram

    itself.

    Therefore,

    to

    make

    this

    conceptualmodel

    actionable,

    more

    empirical

    work

    would

    be necessary

    to

    qualify

    what

    exactly

    exists

    along

    the

    spectrum. As

    we

    have

    conceived

    it,

    the

    model

    can

    serve

    future research

    by

    offering

    multiple

    entry

    points

    to

    ana-

    lysing the

    audit

    processes.

    Regardless

    of

    whether

    the

    research

    starts

    exploring

    the

    normative

    values

    of

    audits

    or the mechanical concerns, links can be made to theother audit

    elements.

    Having

    grounded,

    contextualised

    data

    is

    necessary

    for

    these

    ideas

    to

    serve

    as

    a

    useful

    conceptual framework

    for

    future

    studies

    about

    auditing

    practices

    that

    take

    seriously

    both

    the

    definitions

    of

    audit-

    ing at

    work,

    the

    practices

    of

    auditing,

    and

    the

    relation-

    ships between.

    Following Li [42] we assert that definitions of auditing

    and auditing practices are both equally real and both

    merit critical attention. Such a practice-based approach

    to the

    analysis

    of

    auditing

    [43]

    along

    the

    lines

    set

    out

    inthe third

    strand

    of

    literature

    discussed

    in

    this

    article

    takes

    seriously

    the

    simultaneous

    negotiation

    of

    the

    definition

    and characteristics

    of

    auditing,

    the

    social

    context

    in

    which

    auditing takes place, and the phenomenon (the environ-

    mental, management

    activities)

    that

    is

    being

    audited.

    Contrary to

    what

    the

    majority

    of

    the

    auditing

    literature

    contends, the

    meaning

    and

    importance

    of

    effectiveness,

    objectivity and

    transparency

    are

    not

    well

    established.

    Rather, these

    characteristics

    are

    supremely

    mutable,

    and as

    a

    matter

    of

    course

    must

    be

    made

    actionable.

    Insight into how this is done and how it relates todefinitions,

    characteristics

    and

    modes

    of

    auditing

    is

    what

    is needed

    to

    get

    inside environmental

    auditing.

    AcknowledgementsThe writing and publication of this article have been supported by theWageningen University strategic IP/OP research theme InformationalGovernance.

    References and recommended readingPapers of particular interest, published within the period of review,have been highlighted as:

    of special interest of outstanding interest

    1. Power M: The Audit Society: Rituals of Verification. New York:Oxford University Press; 1997.

    2. Tomlinson P, Atkinson S: Environmental Audits: ProposedTerminology. Environ Monit Assess 1987, 8:187-198.

    3. Mol A:Environmental Reformin the InformationAge: TheContoursof Informational Governance.

    Cambridge: Cambridge UniversityPress; 2008.

    4. Gupta A: Transparency under scrutiny: information disclosurein global environmental governance. Global Environ Pol2008,8:1-7.

    5. Gupta A, Mason M:A transparency turn in global

    environmentalgovernance. In Transparency

    inGlobalEnvironmentalGovernance.Edited by Gupta A, Mason M. The MIT Press; 2014:3-38.

    38 Sustainability governance and transformation

    Figure 3

    Transparency Effectiveness Objectivity/Neutrality

    ProfessionalismProtest

    Definition 2Definition 1

    Current Opinion in Environmental Sustainability

    Linking modes of auditing with audit characteristics.

    Current Opinion in Environmental Sustainability2016, 18:3339 www.sciencedirect.com

    http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0240http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0235http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0230http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0225http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220http://refhub.elsevier.com/S1877-3435(15)00080-9/sbref0220
  • 7/23/2019 Efektivitas, objektivitas dan transparansi audit.pdf

    7/7

    6.

    Turnhout E, Neves K, Lijster E: Measurementality inbiodiversity governance: Knowledge, transparency, and theIntergovernmental Science-Policy Platform on Biodiversityand Ecosystem Services (IPBES). Environ Plan A 2014,46:581-597.

    The authors offer a critical analysis of how business ideals related totransparency, effectiveness and efficiency influence environmentalknowledge making and policy practices.

    7. Gray R: Current developments and trends in social andenvironmental auditing, reporting and attestation: a reviewand comment.

    Int J Audit2000, 4:247-268.

    8. Power M: Auditing and environmental expertise: betweenprotest and professionalisation.

    Account Audit Account J1991,4:30-41.

    9. Power M: Auditing and the production of legitimacy. AccountOrgan Soc 2003, 28:379-394.

    10. Eden S: Being fieldworthy: environmental knowledgepractices and the space of the field in forest certification.Environ Plan D: Soc Space 2008, 26:1018-1035.

    11. RobertsonMM: The nature that capital cansee: science, state,and market in the commodification of ecosystem services.Environ Plan D: Soc Space 2006, 24:367-387.

    12. Domingues P, Sampaio P, Arezes P: Beyond audit definition:

    a framework proposal for integratedmanagement systems. InProceedings of the 2011 Industrial Engineering ResearchConference. 2011.

    13. Elad C: Auditing and Governance of the Forestry Industry:Between Protest and Professionalism.

    Crit Perspect Account2001, 12:647-671.

    14. Herbohn K: A full cost environmental accounting experiment.Account Organ Soc 2005, 30:519-536.

    15. YakhouM, Dorweiler V:Environmental accounting: an essentialcomponent of business strategy. Bus Strategy Environ 2004,13:65-77.

    16. Fischer C, Aguilar F, Jawahar P, Sedjo R: Forest Certification:Toward Common Standards? Washington, DC:Resources for theFuture; 2005.

    17. Diamantis D: The importance of environmental auditing and

    environmental indicators in islands.

    Eco-Manage Audit1999,6:18-25.

    18. Nitkin D, Brooks L: Sustainability auditing and reporting: theCanadian Experience.

    J Bus Ethics 1998, 17:1499-1507.

    19. MarkopoulosM: TheImpacts ofCertificationon CommunityForestEnterprises: A Case Study of the Lomero

    Community ForestManagement Project, Bolivia.

    London: Department forInternational Development; 1998.

    20. Ebeling J, YasueM: The effectiveness of market-basedconservation in the tropics: Forest certification in Ecuadorand Bolivia.

    J Environ Manage 2008:1-9.

    21. Ling T: Performance Audit: Contributing to accountability indemocratic government. Prague: European Evaluation Society;2010.

    22. Tikina A, Innes J:A framework for assessing the effectivenessof forest certification.

    Can J For Res 2008, 38:1357-1365.

    23. Moore SE, Cubbage F, Eicheldinger C: Impacts of ForestStewardship Council (FSC) and Sustainable Forest Initiative(SFI) Forest Certification in North America.

    J For2012,110:79-88.

    24. Shapiro S: The social control of impersonal trust.

    Am J Sociol1987, 93:623-658.

    25.

    Rametsteiner E, Simula M: Forest certification an instrumenttopromotesustainable forestmanagement? J EnvironManage2003, 67:87-98.

    26.

    Sugiura K, Yoshioka T, Inoue K: Effects of acquiring FSC forestmanagement certification for Japanese enterprises usingSmartwood Audits. J For Res 2012, 23:165-172.

    The authors provide a clear account of the effects of FSC certification,

    with some focus placed on how forest managers perceive the role andpurpose of certification auditing.

    27. Ungureanu M: Role of environmental audit in the modernenterprise. Ann Econ Sci Ser2012, XVII:88-95.

    28. Rau S, Moser D: Does performing other audit tasks affectgoing-concern judgments? Account Rev1999, 74:493-508.

    29.

    McDermott C: Trust, legitimacy and power in forestcertification: a case study of the FSC in British Columbia.Geoforum 2012, 43:634-644.

    Focusing on the construction of legitmacy discourse around FSC certi-fication auditing,the authorexamineshow trustanddistrustaremanagedor not managed.

    30. Pentland B: Getting comfortable with the numbers: auditingand themicro-production of macro-order.

    Account Organ Soc1993, 18:605-620.

    31. Lamberton G: Sustainability Accounting a brief history and

    conceptual framework. Account Forum 2005, 29:7-26.

    32. Asdal K: Enacting things through numbers: taking nature intoaccount/ing. Geoforum 2008, 39:123-132.

    33. Strathern M: The tyranny of transparency. Br Educ Res J2000,26:309-321.

    34. Fox J: The uncertain relationship between transparency andaccountability. Dev Pract2007, 17:663-671.

    35. Etzioni A: Is transparency the best disinfectant? J Pol Philos2010, 18:389-404.

    36. Neyland D: Acheiving transparency: the visible, invisible anddivisible in academic accountability networks.

    Organization2007, 14:499-516.

    37. Hansen E, Fletcher R, Cashore B, McDermott C: ForestCertification in North America.

    Oregon State University ExtensionService; 2006.

    38. Klooster D: Institutional choice, community, and struggle:a case study of forest co-management in Mexico.World Dev2000, 28:1-20.

    39. Nsekyiere E, Simula M: Comparative study on the auditingsystems of sustainable forest management.

    Int Trop TimberOrgan 2000.

    40.

    Gupta A, Vijge M, Turnhout E, Pistorius T:Making REDD+Transparent. In Transparency in Global EnvironmentalGovernance. Edited by Gupta A, Mason M. MIT Press; 2014:181-201.

    The authors use the example of REDD+ to discuss the various intendedandunintended effects ofmonitoring, reportingandverificationschemes.

    41. MaletzO, TysiachnioukM: The effectof expertise on the qualityof forest standards implementation: the case of FSC forestcertification in Russia. For Policy Econ 2009, 11:422-428.

    42. Li T: TheWill to Improve: Governmentality, Development, and thePractice of Politics.

    Durham: Duke University Press; 2007.

    43.

    Arts B, Behagel J, Turnhout E, Koning D: A practice basedapproach to forest governance. For Policy Econ 2014, 49:4-11.

    Theauthorsprovide thecontoursof a practice basedperspective to serveas an alternative to normative and instrumental theories of environmentalgovernance.

    Inside

    environmental

    auditing Cook, van Bommel and Turnhout 39

    www.sciencedirect.com Current Opinion in Environmental Sustainability2016, 18:3339

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