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曼昆《经济学原理》(微观)第五版测试题库 (05)

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Chapter 5

Elasticity and Its Application

TRUE/FALSE

1. Elasticity measures how responsive quantity is to changes in price.

ANS: T DIF: 1 REF: 5-0 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional

2. Measures of elasticity enhance our ability to study the magnitudes of changes.

ANS: T DIF: 1 REF: 5-0 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional

3. The demand for bread is likely to be more elastic than the demand for solid-gold bread plates.

ANS: F DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

4. In general, demand curves for necessities tend to be price elastic.

ANS: F DIF: 1 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

5. In general, demand curves for luxuries tend to be price elastic.

ANS: T DIF: 1 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

6. Necessities tend to have inelastic demands, whereas luxuries have elastic demands.

ANS: T DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

7. Goods with close substitutes tend to have more elastic demands than do goods without close substitutes. ANS: T DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

8. The demand for Rice Krispies is more elastic than the demand for cereal in general.

ANS: T DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

9. The demand for soap is more elastic than the demand for Dove soap.

ANS: F DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

10. The demand for gasoline will respond more to a change in price over a period of five weeks than over a period

of five years.

ANS: F DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

11. Even the demand for a necessity such as gasoline will respond to a change in price, especially over a longer

time horizon.

ANS: T DIF: 2 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive

12. The price elasticity of demand is defined as the percentage change in quantity demanded divided by the

percentage change in price.

ANS: T DIF: 1 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional

13. The price elasticity of demand is defined as the percentage change in price divided by the percentage change

in quantity demanded.

ANS: F DIF: 1 REF: 5-1 NAT: Analytic

LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional

288

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