1.6 Business internal: Activity 01 - IB ECONOMICS€¦ · 12. Complete the following table by...

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IB Economics – Competitive Markets: Demand and Supply

2.1: Demand

IB Economics: IBeconomics.com

2.1 DEMAND: STUDENT LEARNING ACTIVITY

Answer the questions that follow.

1. DEFINITIONS

Define the following terms:

▪ Goods

▪ Services

▪ Consumer

▪ Supplier

▪ Factors of production

▪ Quantity demanded

▪ Demand

▪ Market

▪ Competitive markets

▪ Competition

▪ Law of demand

▪ Effective demand

▪ Income effect of a change of price

▪ Substitution effect of a change of price

▪ Income

▪ Demand schedule

▪ Market demand

▪ Determinants of demand

▪ Demand curve

▪ Normal goods

▪ Inferior goods

▪ Related goods

▪ Compliments

▪ Substitutes

▪ Variable

▪ Inverse relationship

▪ Ceteris paribus

▪ "Bang for the buck"

▪ Marginal

▪ Marginal analysis

▪ Marginal utility

▪ Marginal utility per dollar

▪ Opportunity cost

▪ The law of diminishing marginal utility

▪ Total utility

▪ Utility

▪ Utils

[10 marks]

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2.1: Demand

2. SHORT-ANSWER QUESTIONS

1. Use examples to distinguish between a market and a competitive market. [4 marks]

2. Use examples to distinguish between product and resource markets. [4 marks]

3. Use examples to explain the relationship between price and quantity demanded. [4 marks]

_________________________________________________________________________________________________________________

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2.1: Demand

4. Explain the role of the substitution effect and the income effect of a change in price in explaining

the law of demand. [6 marks]

5. Use examples to distinguish between a change in demand and a change in quantity demanded.

[4 marks]

_________________________________________________________________________________________________________________

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2.1: Demand

6. Use diagrams to contrast a movement along a demand curve and a shift of the demand curve.

[6 marks]

_________________________________________________________________________________________________________________

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2.1: Demand

7. Describe the relationship between an individual’s consumer demand and the market demand.

[4 marks]

8. Use diagrams to contrast an increase in demand and an increase in quantity demanded.

[6 marks]

_________________________________________________________________________________________________________________

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2.1: Demand

9. Use examples to explain how the following factors may change the demand for a good or a

service: [10 marks]

i. Changes in income (for normal and inferior goods)

_________________________________________________________________________________________________________________

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2.1: Demand

ii. Changes in preferences

iii. Demographic changes (decreased number of consumers)

_________________________________________________________

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2.1: Demand

iv. Prices of related goods (for complements and substitutes)

_________________________________________________________________________________________________________________

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2.1: Demand

v. Expectations of future price changes (increasing prices and decreasing prices)

_________________________________________________________________________________________________________________

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2.1: Demand

10. Use a diagram to explain the relationship between units of consumption and total and marginal

consumption. [4 marks]

11. As additional units of a good are consumed, marginal utility decreases yet total utility increases.

Explain this apparent contradiction. [4 marks]

_________________________________________________________

_________________________________________________________________________________________________________________

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2.1: Demand

12. Complete the following table by calculating the marginal utility values. [4 marks]

Table 1: Total utility and marginal utility of consumption

Quantity consumed Total utility (TU) Marginal utility (MU)

13. Explain the law of diminishing marginal utility. [2 marks]

_________________________________________________________________________________________________________________

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2.1: Demand

Figure 1: Total and marginal utility of consumption

14. Plot the TU and MU data in Table 1 (Question 3). [4 marks]

Units consumed

Utility

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2.1: Demand

1 100 100

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2.1: Demand

17. Explain why utils, as a measure of consumer benefit, are an entirely subjective in consumer choice.

[4 marks]

18. Complete the following:

A decrease in the amount of a good purchased would ________________ total utility, and marginal

utility will _________________. As more of a product is purchased, the marginal utility _______________.

_________________________________________________________________________________________________________________

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2.1: Demand

3. DEMAND SCHEDULES AND DEMAND CURVES

1. Sketch a demand curve from the following information: [2 marks]

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2.1: Demand

2. Using information in Table 1 above, construct a new demand schedule showing the effect of a 20

percent increase in demand for chocolate bars at each price. [2 marks]

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2.1: Demand

3. Use the following information in table 2 to sketch the market demand for the following good.

[4 marks]

Table 2: Individual consumer demand for good A.

Price Consumer

‘A’

Consumer

‘B’

Consumer

‘C’

Consumer

‘D’

Consumer

‘E’

Consumer

‘F’

Consumer

‘G’

$0.50 90 100 70 200 90 50 140

$1.00 70 90 60 180 80 40 100

$1.50 50 80 50 160 70 30 80

$2.00 30 70 40 140 60 20 60

$2.50 10 60 30 120 50 10 50

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2.1: Demand

4. Construct a demand schedule using the information in the demand curve below. [4 marks]

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2.1: Demand

5. Using diagrams, show the impact of the following on the demand curve for good A: [12 marks]

i. Consumer incomes increase and good A is an inferior good

ii. The number of consumers in the market for good A decreases

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2.1: Demand

iii. Consumer incomes increase and good A is a normal good

iv. The price of substitute good B decreases

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2.1: Demand

v. The price of complement good C increases

vi. Better product marketing means good A is becoming more preferred.

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2.1: Demand

6. Illustrate the change indicated by the title of each graph; label the changes fully. [12 marks]

A decrease in price

An increase in demand

A price increase

A decrease in demand

A decrease in quantity demanded

An increase in quantity demanded

1.6 Business internal: Activity 01 - IB ECONOMICS€¦ · 12. Complete the following table by...

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