Chapter ELASTICITY - Chang Jung Christian Universityweb.cjcu.edu.tw/~lcc/Courses/1_tb04.pdf ·...

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4 ELASTICITY

Price Elasticity of Demand Topic: The Price Elasticity of Demand Skill: Conceptual 1) The slope of a demand curve depends on

A) the units used to measure price and the units used to measure quantity.

B) the units used to measure price but not the units used to measure quantity.

C) the units used to measure quantity but not the units used to measure price.

D) neither the units used to measure price nor the units used to measure quantity.

Answer: A

Topic: The Price Elasticity of Demand Skill: Conceptual 2) The price elasticity of demand depends on

A) the units used to measure price and the units used to measure quantity.

B) the units used to measure price but not the units used to measure quantity.

C) the units used to measure quantity but not the units used to measure price.

D) neither the units used to measure price nor the units used to measure quantity.

Answer: D

Topic: The Price Elasticity of Demand Skill: Recognition 3) The price elasticity of demand measures

A) how often the price of a good changes. B) the slope of a budget curve. C) how sensitive the quantity demanded is to

changes in demand. D) the responsiveness of the quantity demanded to

changes in price. Answer: D

Topic: Calculating Elasticity Skill: Conceptual 4) When the quantity of coal is measured in kilo-

grams instead of pounds, the demand for coal be-comes

A) more elastic. B) less elastic. C) neither more nor less elastic. D) undefined.

Answer: C

Topic: Calculating Elasticity Skill: Recognition 5) The price elasticity of demand equals

A) the change in the price divided by the change in quantity demanded.

B) the change in the quantity demanded divided by the change in price.

C) the percentage change in the price divided by the percentage change in the quantity de-manded.

D) the percentage change in the quantity demanded divided by the percentage change in the price.

Answer: D

Topic: Calculating Elasticity Skill: Analytical 6) If a rightward shift of the supply curve leads to a 6

percent decrease in the price and a 5 percent in-crease in the quantity demanded, the price elastic-ity of demand is

A) 0.30. B) 0.60. C) 0.83. D) 1.20.

Answer: C

C h a p t e r

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Topic: Calculating Elasticity Skill: Analytical 7) A 10 percent increase in the quantity of spinach

demanded results from a 20 percent decline in its price. The price elasticity of demand for spinach is

A) 0.5. B) 2.0. C) 10.0. D) 20.0.

Answer: A

Topic: Calculating Elasticity Skill: Analytical 8) A 20 percent increase in the quantity of pizza

demanded results from a 10 percent decline in its price. The price elasticity of demand for pizza is

A) 0.5. B) 2.0. C) 10.0. D) 20.0.

Answer: B

Topic: Calculating Elasticity Skill: Analytical 9) Suppose a rise in the price of peaches from $5.50

to $6.50 per bushel decreases the quantity de-manded from 12,500 to 11,500 bushels. The price elasticity of demand is

A) 0.5. B) 1.0. C) 2.0. D) 1000.0.

Answer: A

Topic: Calculating Elasticity Skill: Analytical 10) A fall in the price of lemons from $10.50 to

$9.50 per bushel increases the quantity demanded from 19,200 to 20,800 bushels. The price elastic-ity of demand is

A) 0.80. B) 1.20. C) 1.25. D) 8.00.

Answer: A

Topic: Calculating Elasticity Skill: Analytical 11) A fall in the price of cabbage from $10.50 to

$9.50 per bushel increases the quantity demanded from 18,800 to 21,200 bushels. The price elastic-ity of demand is

A) 0.80. B) 1.20. C) 1.25. D) 8.00.

Answer: B

Topic: Calculating Elasticity Skill: Analytical 12) Suppose that the quantity of root beer demanded

declines from 103,000 gallons per week to 97,000 gallons per week as a consequence of a 10 percent increase in the price of root beer. The price elas-ticity of demand is

A) 0.60. B) 1.40. C) 1.66. D) 6.00.

Answer: A

Topic: Calculating Elasticity Skill: Analytical 13) The price elasticity of demand is 5.0 if a 10 per-

cent increase in the price results in a ____ de-crease in the quantity demanded.

A) 2 percent B) 5 percent C) 10 percent D) 50 percent

Answer: D

Topic: Calculating Elasticity Skill: Analytical 14) A shift of the supply curve of oil raises the price of

oil from $9.50 a barrel to $10.50 a barrel and re-duces the quantity demanded from 41 million to 39 million barrels a day. The price elasticity of demand for oil is

A) 2 million barrels a day per dollar. B) $1 per 2 million barrels a day. C) 0.5. D) 2.0.

Answer: C

E L A S T I C I T Y 1 3 7

Topic: Calculating Elasticity Skill: Analytical 15) Suppose the price elasticity of demand for oil is

0.1. In order to lower the price of oil by 20 per-cent, the quantity of oil supplied must be in-creased by

A) 200 percent. B) 20 percent. C) 2 percent. D) 0.2 percent.

Answer: C

Topic: Calculating Elasticity Skill: Analytical* 16) The price elasticity of demand for cigarettes is

0.4. If government wants to reduce smoking by 10 percent, by how much should it raise the price of cigarettes?

A) By 10 percent. B) By 20 percent. C) By 25 percent. D) By 50 percent.

Answer: C

Topic: Calculating Elasticity Skill: Analytical* 17) Teenagers have a higher price elasticity of demand

for cigarettes than do adults. Suppose the price elasticity of teenager’s demand for cigarettes is 0.8, the price elasticity of adult’s demand for ciga-rettes is 0.8. If the government imposes a tax on cigarettes that raises the price by 10 percent, by how much will it reduce teenage smoking?

A) By 5 percent B) By 10 percent C) By 15 percent D) By 20 percent Answer: D

Price (dollars per bushel)

Quantity demanded (bushels)

8 2,000 7 4,000 6 6,000 5 8,000 4 10,000 3 12,000

Topic: Calculating Elasticity Skill: Analytical 18) The table above gives the demand schedule for

snow peas. The price elasticity of demand be-tween $6.00 and $7.00 per bushel is

A) 1.0. B) 2.0. C) 2.6. D) 5.0.

Answer: C

Topic: Total Revenue and Elasticity Skill: Analytical 19) The table above gives the demand schedule for

snow peas. If the price of snow peas falls from $4.00 to $3.00 a bushel, total revenue will

A) increase because demand is elastic in this range. B) decrease because demand is elastic in this range. C) increase because demand is inelastic in this

range. D) decrease because demand is inelastic in this

range. Answer: D

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 20) The table above gives the demand schedule for

snow peas. The demand curve for snow peas is a straight line and so the elasticity of demand is

A) 1 at all prices. B) the same at all prices but not 1. C) higher at higher prices. D) lower at higher prices.

Answer: C

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Price (dollars per bushel)

Quantity demanded (bushels)

A 10 0 B 8 4 C 6 8 D 4 12 E 2 16


peas. As you move from point A to point B, the price elasticity of demand equals

A) 0.11. B) 0.50. C) 0.22. D) 9.09.

Answer: D


peas. As you move from point C to point D, the price elasticity of demand is

A) elastic. B) unit elastic. C) 0.75. D) 3.00.

Answer: B

Topic: Calculating Elasticity Skill: Conceptual 23) The table above gives the demand schedule for

peas. Which of the following statements correctly describes the price elasticity of demand?

A) The price elasticity of demand is larger at point A than at point B.

B) The price elasticity of demand is larger at point D than at point A.

C) The price elasticity of demand is constant be-cause the slope is constant.

D) The price elasticity of demand increases moving from point A to point B to point C to point D to point E.

Answer: A

Topic: Inelastic and Elastic Demand Skill: Recognition 24) If demand is price elastic,

A) a 1 percent decrease in the price leads to an in-crease in the quantity demanded that exceeds 1 percent.

B) a 1 percent increase in the price leads to an in-crease in the quantity demanded that exceeds 1 percent.

C) a 1 percent decrease in the price leads to a de-crease in the quantity demanded that is less than 1 percent.

D) the price is very sensitive to any shift of the sup-ply curve.

Answer: A

Topic: Inelastic and Elastic Demand Skill: Conceptual 25) The price elasticity of demand can range between

A) zero and one. B) negative infinity and infinity. C) zero and infinity. D) negative one and one.

Answer: C

Topic: Inelastic and Elastic Demand Skill: Recognition 26) Demand is perfectly inelastic when

A) shifts in the supply curve results in no change in price.

B) the good in question has perfect substitutes. C) shifts of the supply curve results in no change in

quantity demanded. D) shifts of the supply curve results in no change in

the total revenue from sales. Answer: C

Topic: Inelastic and Elastic Demand Skill: Recognition 27) If the price elasticity is between 0 and 1, demand

is A) elastic. B) inelastic. C) unit elastic. D) perfectly elastic.

Answer: B


Topic: Inelastic and Elastic Demand Skill: Recognition 28) Demand is inelastic if

A) a large change in quantity demanded results in a small change in price.

B) the quantity demanded is very responsive to changes in price.

C) the price elasticity of demand is less than 1. D) the price elasticity of demand is greater than 1.

Answer: C

Topic: Inelastic and Elastic Demand Skill: Recognition 29) A good with a vertical demand curve has a de-

mand with A) unit elasticity. B) infinite elasticity. C) zero elasticity. D) varying elasticity.

Answer: C

Topic: Inelastic and Elastic Demand Skill: Conceptual 30) When the price elasticity of demand for a good

equals A) 0, the demand curve is vertical. B) 0, the demand curve is horizontal. C) 1, the demand curve is vertical. D) 1, the demand curve is horizontal.

Answer: A

Topic: Inelastic and Elastic Demand Skill: Analytical 31) A straight-line demand curve along which the

price elasticity of demand equals 0 is one that A) forms a 45 degree angle with the vertical axis. B) forms a 60 degree angle with the horizontal axis. C) is vertical. D) is horizontal.

Answer: C

Topic: Inelastic and Elastic Demand Skill: Analytical 32) The demand for movies is unit elastic if

A) a 5 percent decrease in the price leads to an infi-nite increase in the quantity demanded.

B) a 5 percent increase in the price leads to a 5 per-cent decrease in the quantity demanded.

C) any increase in the price leads to a 1 percent de-crease in the quantity demanded.

D) a 5 percent increase in the price leads to a 5 per-cent increase in total revenue.

Answer: B

Topic: Inelastic and Elastic Demand Skill: Analytical 33) Unit elastic demand

A) means that the ratio of a change in the quantity demanded to a change in the price equals 1.

B) means that the ratio of a percentage change in the quantity demanded to a percentage change in the price equals 1.

C) will be vertical. D) will be horizontal.

Answer: B

Topic: Inelastic and Elastic Demand Skill: Conceptual 34) A good with a horizontal demand curve has a

demand A) with an income elasticity of demand of 0. B) with a price elasticity of demand of 0. C) with a price elasticity of demand of infinity. D) for which there are no substitute.

Answer: C

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Topic: Inelastic and Elastic Demand Skill: Analytical 35) The demand curve in the figure above illustrates

the demand for a product with A) zero price elasticity of demand at all prices. B) infinite price elasticity of demand. C) unit price elasticity of demand at all prices. D) a price elasticity of demand that is different at all

prices. Answer: A

Topic: Inelastic and Elastic Demand Skill: Recognition 36) In the above figure, which demand curve illus-

trates perfectly elastic demand? A) G B) H C) I D) J

Answer: D


Topic: Inelastic and Elastic Demand Skill: Analytical 37) The demand curve in the figure above illustrates a

product whose demand has a price elasticity of demand equal to

A) zero at all prices. B) infinity. C) one at all prices. D) a different amount at different prices.

Answer: B

Topic: Inelastic and Elastic Demand Skill: Analytical 38) The demand curve in the figure above illustrates


prices. Answer: C

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 39) On a linear demand curve that intersects both

axes, A) the elasticity exceeds 1.00 at all prices. B) the elasticity is less than 1.00 at all prices. C) the elasticity equals 1.00 at all prices. D) the elasticity decreases as the price falls and

quantity increases. Answer: D

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 40) On a straight-line downward-sloping demand

curve, the maximum elasticity of demand occurs A) at its vertical intercept. B) at its midpoint. C) at its horizontal intercept. D) where it intersects the supply curve.

Answer: A

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Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 41) A straight-line demand curve with negative slope

intersects the horizontal axis at 100 tons per week. At the midpoint on the demand curve (corre-sponding to 50 tons per week) the price elasticity of demand is

A) 0. B) 0.5. C) 1.0. D) greater than 1.0.

Answer: C

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Recognition 42) Which of the following statements is FALSE?

A) A good with a vertical demand curve has a per-fectly inelastic demand.

B) A good with a straight line, downward sloping demand curve has a demand whose elasticity is constant.

C) A good with a horizontal demand curve has a perfectly elastic demand.

D) All of the above statements are false. Answer: B

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Conceptual* 43) Along a straight-line demand curve, as the price

falls the A) demand becomes more elastic. B) demand becomes less elastic. C) elasticity of demand is constant. D) demand is always unitary elastic.

Answer: B

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 44) The price elasticity of demand ____ in value

when moving downward along a ___ line demand curve.

A) falls; straight B) rises; curved C) falls, curved D) rises; straight

Answer: A

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Conceptual 45) The elasticity of demand along a straight line,

negatively sloped, demand curve is A) always equal to 1.0. B) infinite. C) changes continuously moving along the demand

curve. D) equal to 0.

Answer: C

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Conceptual 46) If the demand curve for a good is a downward

sloping straight line, the demand for the good will be more price elastic the higher is the

A) price of the good. B) price of substitutes. C) income of consumers. D) income elasticity of demand for that good.

Answer: A

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 47) If the demand curve for a good is a downward

sloping straight line, then at which of the follow-ing prices is demand most elastic?

A) $1/unit B) $2/unit C) $3/unit D) It is impossible to determine at which price the

demand will be most elastic without more in-formation.

Answer: C


Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 48) The figure above illustrates a linear demand curve.

By comparing the price elasticity in the $2 to $4 price range with the elasticity in the $8 to $10 range, you can conclude that the elasticity is

A) greater in the $8 to $10 range. B) greater in the $2 to $4 range. C) the same in both price ranges. D) greater in the $8 to $10 range when the price

rises but greater in the $2 to $4 range when the price falls.

Answer: A


If the price falls from $8 to $6, A) total revenue will increase. B) total revenue will decrease. C) total revenue will remain unchanged. D) the quantity demanded will increase by less than

20 percent. Answer: A


In the range from $8 to $6, A) the demand is price elastic. B) the demand is unit elastic. C) the demand is price inelastic. D) more information is needed to determine if the

demand is price elastic, unit elastic, or inelastic. Answer: A


If the price falls from $6 to $4, A) total revenue will increase. B) total revenue will decrease. C) total revenue will remain unchanged. D) quantity demanded will increase by more than

100 percent. Answer: C


In the price range from $8 to $6, demand is ____ and in the price range $4 to $2, demand is ____.

A) elastic; elastic B) elastic; inelastic C) inelastic; elastic D) inelastic; inelastic

Answer: B


If the price rises from $6 to $8 demand is ____ and if the price falls from $8 to $6 demand is ____.

A) elastic; elastic B) elastic; inelastic C) inelastic; elastic D) inelastic; inelastic

Answer: A

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Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 54) The demand curve in the figure above illustrates


prices. Answer: D

Topic: Elasticity Along a Straight-Line Demand Curve Skill: Analytical 55) A straight-line demand curve with negative slope

intersects the horizontal axis at 200 tons per week. The point on the demand curve at which the price elasticity of demand is 1 corresponds to a quantity demanded

A) of 0 tons. B) of 100 tons. C) of 200 tons. D) that would be negative if a negative quantity

demanded were possible. Answer: B

Topic: Total Revenue and Elasticity Skill: Conceptual 56) Demand is inelastic if

A) large shifts of the supply curve lead to only small changes in price.

B) the good in question has close substitutes. C) a leftward shift of the supply curve raises the to-

tal revenue. D) the smaller angle between the vertical axis and

the demand curve is less than 45 degrees. Answer: C

Topic: Total Revenue and Elasticity Skill: Recognition 57) Demand is unit elastic when

A) the slope of the demand curve is –1. B) a shift of the supply curve leads to no change in

price. C) a shift of the supply curve leads to an equal shift

of the demand curve. D) a change in the price of the product leads to no

change in the total revenue. Answer: D

Topic: Total Revenue and Elasticity Skill: Analytical 58) Producers’ total revenue will decrease if

A) income increases and the good is a normal good. B) the price rises and demand is elastic. C) the price rises and demand is inelastic. D) income falls and the good is an inferior good.

Answer: B

Topic: Total Revenue and Elasticity Skill: Analytical 59) Producers’ total revenue will increase if

A) income increases and the good is an inferior good.

B) the price rises and demand is elastic. C) the price rises and demand is inelastic. D) income falls and the good is a normal good.

Answer: C


Topic: Total Revenue and Elasticity Skill: Analytical 60) If the demand for a good is unit elastic,

A) a 5 percent increase in price results in a 5 per-cent increase in total revenue.

B) a 5 percent increase in price results in a 5 per-cent decrease in total revenue.

C) a 5 percent increase in price does not change to-tal revenue.

D) the demand curve is a straight line with slope of –1.

Answer: C

Topic: Total Revenue and Elasticity Skill: Analytical* 61) If OPEC cuts oil production to increase the total

revenue, they know that the demand for oil in the global market is

A) perfectly elastic B) unit elastic C) elastic D) inelastic Answer: D

Topic: Total Revenue and Elasticity Skill: Analytical 62) A shift of the supply curve of oil raises the price

from $10 a barrel to $30 a barrel and reduces the quantity demanded from 40 million to 23 million barrels a day. You can conclude that the

A) demand for oil is elastic. B) demand for oil is inelastic. C) supply of oil is elastic. D) supply of oil is inelastic.

Answer: B

Topic: Total Revenue and Elasticity Skill: Analytical 63) A shift of the supply curve of oil raises the price

from $10 a barrel to $15 a barrel and reduces the quantity demanded from 40 million to 15 million barrels a day. You can conclude that the

A) demand for oil is elastic. B) demand for oil is inelastic. C) supply of oil is elastic. D) supply of oil is inelastic.

Answer: A

Topic: Total Revenue and Elasticity Skill: Analytical 64) A leftward shift of the supply curve of cookies

raises the price of a cookie from 10 cents to 20 cents and decreases the quantity demanded from 700,000 to 500,000. You can conclude that

A) the demand for cookies is elastic. B) the demand for cookies is inelastic. C) the supply of cookies is elastic. D) the supply of cookies is inelastic.

Answer: B

Topic: Total Revenue and Elasticity Skill: Analytical 65) The demand for a good is elastic if

A) an increase in its price results in an increase in total revenue.

B) a decrease in its price results in a decrease in to-tal revenue.

C) an increase in its price results in a decrease in to-tal revenue.

D) the good is a necessity. Answer: C

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Topic: Total Revenue and Elasticity Skill: Analytical 66) The figure above represents the behavior of total

revenue as price falls along a straight-line demand curve. What is the price elasticity of demand if to-tal revenue is given by point f?

A) Demand is inelastic. B) Demand is unit elastic. C) Demand is elastic. D) It is impossible to determine.

Answer: C

Topic: Total Revenue and Elasticity Skill: Analytical 67) The figure above represents the behavior of total

revenue as price falls along a straight-line demand curve. Unit elasticity of demand occurs at

A) point g. B) point h. C) point i. D) point j.

Answer: B

Topic: Your Expenditure and Elasticity Skill: Analytical 68) As the price of camcorders fell during the 1990s,

the amount of money spent on this good in-creased, that is, consumers’ total expenditures on camcorders increased. This fact suggests that the demand for camcorders

A) must have shifted leftward. B) must be upward sloping. C) is elastic. D) is inelastic.

Answer: C

Topic: Your Expenditure and Elasticity Skill: Analytical 69) Assuming that your demand for gasoline is inelas-

tic, when the price of gasoline falls, which of the following is most likely to occur?

A) Your demand curve for gasoline will shift left-ward.

B) Your demand curve for gasoline will shift right-ward.

C) Your total expenditure on gasoline will increase. D) Your total expenditure on gasoline will decrease.

Answer: D

Topic: Your Expenditure and Elasticity Skill: Analytical 70) Starting at the top of a straight-line downward

sloping demand curve, as the price rises, total ex-penditures will

A) initially increase and then decrease. B) initially decrease and then increase. C) increase along the entire demand curve. D) decrease along the entire demand curve.

Answer: A

Topic: Your Expenditure and Elasticity Skill: Analytical 71) If a price decrease results in your expenditure on a

good decreasing, your demand must be A) inelastic. B) elastic. C) unit. D) linear.

Answer: A


Topic: Your Expenditure and Elasticity Skill: Conceptual 72) An increase in subway fares in New York City will

boost your expenditures on subway rides if A) the supply of subway rides is elastic. B) the supply of subway rides is inelastic. C) your demand for subway rides is elastic. D) your demand for subway rides is inelastic.

Answer: D

Topic: Factors That Influence the Price Elasticity of Demand Skill: Analytical 73) The more substitutes available for a good or ser-

vice, A) the larger is its price elasticity of demand. B) the smaller is its income elasticity of demand. C) the smaller is its price elasticity of demand. D) the larger is its income elasticity of demand.

Answer: A

Topic: Factors That Influence the Price Elasticity of Demand Skill: Analytical 74) Of the following, demand is likely to be the least

elastic for A) Ford automobiles. B) Toyota automobiles. C) compact disc players. D) toothpicks.

Answer: D

Topic: Factors That Influence the Price Elasticity of Demand Skill: Analytical 75) Of the following, demand is likely to be the least

elastic for A) diamonds. B) insulin for diabetics. C) iceberg lettuce. D) pink grapefruit.

Answer: B

Topic: Factors That Influence the Price Elasticity of Demand Skill: Analytical 76) The demand for food is most elastic in countries

A) with low income levels. B) with intermediate income levels. C) with high income levels. D) that are highly urbanized.

Answer: A

Topic: Factors That Influence the Price Elasticity of Demand Skill: Conceptual 77) The demand for Honda Accords is

A) probably inelastic but more elastic than the de-mand for automobiles.

B) probably elastic and more elastic than the de-mand for automobiles.

C) probably inelastic and less elastic than the de-mand for automobiles.

D) probably elastic but less elastic than the demand for automobiles.

Answer: B

Topic: Factors That Influence the Price Elasticity of Demand Skill: Conceptual 78) The route from Dallas to Mexico City is served by

more than one airline. The demand for tickets from American Airlines for that route is probably

A) inelastic but more elastic than the demand for all tickets for that route.

B) elastic and more elastic than the demand for all tickets for that route.

C) inelastic and less elastic than the demand for all tickets for that route.

D) elastic but less elastic than the demand for all tickets for that route.

Answer: B

Topic: Factors That Influence the Price Elasticity of Demand Skill: Conceptual 79) The elasticity of demand for Gateway computers

is probably A) inelastic and smaller than the elasticity of de-

mand for computers overall. B) elastic and smaller than the elasticity of demand

for computers overall. C) inelastic but larger than the elasticity of demand

for computers overall. D) elastic and larger than the elasticity of demand

for computers overall. Answer: D

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Topic: Factors That Influence the Price Elasticity of Demand Skill: Conceptual 80) Aglets are the metal or plastic tips on shoelaces

that make it easier to lace your shoes. The de-mand for aglets is probably

A) inelastic. B) unit elastic. C) elastic but not perfectly elastic. D) perfectly elastic.

Answer: A

More Elasticities of Demand Topic: Cross Elasticity of Demand Skill: Recognition 81) The cross elasticity of demand measures the re-

sponsiveness of the quantity demanded of a par-ticular good to changes in the prices of

A) its substitutes and its complements. B) its substitutes but not its complements. C) its complements but not its substitutes. D) neither its substitutes nor its complements.

Answer: A

Topic: Cross Elasticity of Demand Skill: Recognition 82) If goods are complements, definitely their

A) cross elasticities are positive. B) income elasticities are positive. C) income elasticities are negative. D) cross elasticities are negative.

Answer: D

Topic: Cross Elasticity of Demand Skill: Analytical 83) If a rise in the price of good 1 decreases the quan-

tity of good 2 demanded, A) the cross elasticity of demand is negative. B) the cross elasticity of demand is positive. C) good 1 is an inferior good. D) good 2 is an inferior good.

Answer: A

Topic: Cross Elasticity of Demand Skill: Recognition 84) The cross elasticity of demand between apples and

oranges is defined as A) the percentage change in the quantity of apples

demanded divided by the percentage change in the price of oranges.

B) the price elasticity of demand for apples divided by the price elasticity of demand for oranges.

C) the percentage change in the quantity of apples demanded divided by the percentage change in the quantity of oranges demanded.

D) the change in the quantity of apples demanded divided by the change in the quantity of oranges demanded.

Answer: A

Topic: Cross Elasticity of Demand Skill: Conceptual 85) If the cross elasticity of demand between goods A

and B is positive, A) the demands for A and B are both price elastic. B) the demands for A and B are both price inelas-

tic. C) A and B are complements. D) A and B are substitutes.

Answer: D

Topic: Cross Elasticity of Demand Skill: Conceptual 86) If the cross elasticity of demand between goods A

and B is negative, A) the demands for A and B are both price elastic. B) the demands for A and B are both price inelas-

tic. C) A and B are complements. D) A and B are substitutes.

Answer: C

Topic: Cross Elasticity of Demand Skill: Conceptual 87) The greater the substitutability between North-

west timber and Southeast timber, the ____ is the cross elasticity of demand between timber from the two regions and the ____ is the elasticity of demand for Northwest timber.

A) smaller; smaller B) smaller; larger C) larger; smaller D) larger; larger

Answer: D


Topic: Cross Elasticity of Demand Skill: Conceptual 88) If goods A and B are complements,

A) the cross elasticity of demand between A and B is negative.

B) the cross elasticity of demand between A and B is positive.

C) their income elasticities of demand are both greater than 1.

D) their income elasticities of demand are both less than 1.

Answer: A

Topic: Cross Elasticity of Demand Skill: Analytical 89) If a rise in the price of good B increases the quan-

tity demanded of good A, A) A and B are substitutes. B) A and B are complements. C) A is a substitute for B, but B is a complement to

A. D) B is a substitute for A, but A is a complement to

B. Answer: A

Topic: Cross Elasticity of Demand Skill: Analytical 90) If a fall in the price of good A increases the quan-

tity demanded of good B, A) A and B are substitutes. B) A and B are complements. C) A is a substitute for B, but B is a complement to

A. D) B is a substitute for A, but A is a complement to

B. Answer: B

Topic: Cross Elasticity of Demand Skill: Analytical 91) The cross elasticity of demand between Coca-

Cola and Pepsi-Cola is A) positive, that is, Coke and Pepsi are comple-

ments. B) positive, that is, Coke and Pepsi are substitutes. C) negative, that is, Coke and Pepsi are comple-

ments. D) negative, that is, Coke and Pepsi are substitutes.

Answer: B

Topic: Cross Elasticity of Demand Skill: Analytical 92) A rise in the price of good A will shift the

A) demand curve for good B rightward if the cross elasticity of demand between A and B is nega-tive.

B) demand curve for good B rightward if the cross elasticity of demand between A and B is posi-tive.

C) supply curve of good B rightward if the cross elasticity of demand between A and B is nega-tive.

D) supply curve of good B rightward if the cross elasticity of demand between A and B is posi-tive.

Answer: B

Topic: Income Elasticity of Demand Skill: Recognition 93) The income elasticity of demand is the percentage

change in A) the price divided by the percentage change in

income. B) the quantity demanded divided by the percent-

age change in income. C) income divided by the percentage change in

quantity demanded. D) income divided by the percentage change in

price. Answer: B

Topic: Income Elasticity of Demand Skill: Recognition 94) Demand is income elastic if

A) a large percentage increase in income will result in a small percentage increase in quantity de-manded.

B) a small percentage increase in income will result in a large percentage increase in quantity de-manded.

C) an increase in income will not affect the quan-tity demanded.

D) the good in question has close substitutes. Answer: B

1 5 0 C H A P T E R 4

Topic: Income Elasticity of Demand Skill: Recognition 95) The income elasticity of demand is largest for

A) food. B) clothing. C) shelter. D) luxuries.

Answer: D

Topic: Income Elasticity of Demand Skill: Recognition 96) To say that turnips are inferior goods means that

the income elasticity A) is definitely greater than 1. B) is definitely between 0 and 1. C) is positive but could be greater than or less then

(or equal to) 1. D) is negative.

Answer: D

Topic: Income Elasticity of Demand Skill: Conceptual 97) An increase in Abigail’s income decreases her de-

mand for cassette tapes. For her, cassette tapes are A) a normal good. B) an inferior good. C) a complement to any good. D) a substitute good.

Answer: B

Topic: Income Elasticity of Demand Skill: Recognition 98) Goods whose income elasticities are negative are

called A) normal goods. B) superior goods. C) inferior goods. D) complements.

Answer: C

Topic: Income Elasticity of Demand Skill: Analytical 99) A 10 percent increase in income has caused a 5

percent decrease in the quantity demanded. The income elasticity is

A) 0.5. B) –0.5. C) 2.0. D) –2.0.

Answer: B

Topic: Income Elasticity of Demand Skill: Analytical 100) Deb’s income has just risen from $950 per week

to $1,050 per week. As a result, she decides to in-crease the number of movies she attends each month by 5 percent. Her demand for movies is

A) represented by a vertical line. B) represented by a horizontal line. C) income elastic. D) income inelastic.

Answer: D

Topic: Income Elasticity of Demand Skill: Analytical 101) Fred’s income has just risen from $940 per week

to $1,060 per week. As a result, he decides to pur-chase 9 percent more steak per week. The income elasticity of Fred’s demand for steak is

A) 0.75. B) 0.90. C) 1.00. D) 1.33.

Answer: A

Topic: Income Elasticity of Demand Skill: Analytical 102) Joan’s income has just risen from $940 per week

to $1,060 per week. As a result, she decides to purchase 12 percent more lettuce per week. The income elasticity of Joan’s demand for lettuce is

A) 0.75. B) 0.90. C) 1.00. D) 1.33.

Answer: C

Topic: Income Elasticity of Demand Skill: Analytical 103) A 10 percent increase in income causes the quan-

tity of orange juice demanded to increase from 19,200 to 20,800 gallons. The income elasticity of demand for orange juice is

A) 0.5. B) 0.8. C) 1.0. D) 1.2.

Answer: B


Topic: Income Elasticity of Demand Skill: Analytical 104) A 10 percent increase in income causes the quan-

tity of apple juice demanded to increase from 18,800 to 21,200 gallons. The income elasticity of demand for apple juice is

A) 0.5. B) 0.8. C) 1.0. D) 1.2.

Answer: D

Topic: Cross Elasticity of Demand Skill: Analytical 105) The increase in the demand for widgets, shown in

the figure above, is caused by an increase in the price of McBoover devices. Therefore,

A) widgets and McBoover devices are substitutes. B) widgets and McBoover devices are comple-

ments. C) widgets are a normal good. D) McBoover devices are a normal good.

Answer: A


the figure above, is caused by a decrease in the price of McBoover devices. Therefore,

A) widgets and McBoover devices are substitutes. B) widgets and McBoover devices are comple-

ments. C) widgets are a normal good. D) McBoover devices are a normal good.

Answer: B


the figure above, is caused by an increase in the price of McBoover devices from $9 to $11. Therefore, the cross-price elasticity for these two products is

A) –2.0. B) –0.5. C) 0.5. D) 2.0.

Answer: D


the figure above, is caused by a decrease in the price of McBoover devices from $11 to $9. Therefore, the cross-price elasticity for these two products is

A) –2.0. B) –0.5. C) 0.5. D) 2.0.

Answer: A

Topic: Income Elasticity of Demand Skill: Analytical 109) The increase in the demand for widgets, shown in

the figure above, is caused by an increase in aver-age incomes. Therefore, widgets

A) are a normal good. B) are an inferior good. C) are elastically demanded. D) are inelastically demanded.

Answer: A

1 5 2 C H A P T E R 4

Topic: Income Elasticity of Demand Skill: Analytical 110) The increase in the demand for widgets, shown in

the figure above, is caused by an increase in aver-age incomes from $28,500 per year to $31,500 per year. Therefore, the income elasticity of de-mand for widgets is

A) 1/4. B) 3/4. C) 4/3. D) 4.

Answer: D

Topic: Real-World Income Elasticity of Demand Skill: Conceptual 111) As income rises, the share of income spent on

food in the United States A) falls. B) remains constant at 15 percent. C) remains constant at 33 percent. D) rises.

Answer: A

Elasticity of Supply Topic: Elasticity of Supply Skill: Recognition 112) The elasticity of supply measures the responsive-

ness of A) quantity demanded to changes in supply. B) quantity supplied to changes in demand. C) quantity supplied to changes in price. D) quantity supplied to changes in income.

Answer: C

Topic: Elasticity of Supply Skill: Recognition 113) The elasticity of supply measures the sensitivity of

A) supply to changes in costs. B) quantity supplied to quantity demanded. C) quantity supplied to a change in price. D) price to changes in supply.

Answer: C

Topic: Calculating the Elasticity of Supply Skill: Conceptual 114) On most days the price of a rose is $1 and 80

roses are purchased. On Valentine’s Day the de-mand increases so that the price of a rose rises to $2 and 320 roses are purchased. Therefore, the price elasticity of

A) demand for roses is about 1.8. B) demand for roses is about 0.55. C) supply of roses is about 1.8. D) supply of roses is about 0.55.

Answer: C

Topic: Calculating the Elasticity of Supply Skill: Recognition 115) Supply is elastic if

A) a 1 percent change in price causes a larger per-centage change in quantity supplied.

B) a 1 percent change in price causes a smaller per-centage change in quantity supplied.

C) the slope of the supply curve is positive. D) the good in question is a normal good.

Answer: A

Topic: Calculating the Elasticity of Supply Skill: Recognition 116) If a 1 percent decrease in the price of a pound of

oranges results in a smaller percentage decrease in the quantity supplied,

A) demand is elastic. B) demand is inelastic. C) supply is elastic. D) supply is inelastic.

Answer: D

Topic: Calculating the Elasticity of Supply Skill: Recognition 117) If a 1 percent decrease in the price of a pound of

squash results in a larger percentage decrease in the quantity supplied,

A) demand is elastic. B) demand is inelastic. C) supply is elastic. D) supply is inelastic.

Answer: C


Topic: Calculating the Elasticity of Supply Skill: Analytical 118) If at a given moment, no matter what the price,

producers cannot change the quantity supplied, the momentary supply

A) has zero elasticity. B) has unit elasticity. C) has infinite elasticity. D) does not exist.

Answer: A

Topic: Calculating the Elasticity of Supply Skill: Analytical 119) If a rise in the price of oranges from $7 to $9 a

bushel, caused by a shift of the demand curve, in-creases the quantity of bushels supplied from 4,500 to 5,500 bushels, the

A) supply of oranges is elastic. B) supply of oranges is inelastic. C) demand for oranges is elastic. D) demand for oranges is inelastic.

Answer: B

Topic: Calculating the Elasticity of Supply Skill: Analytical 120) If a shift in the demand curve that raises the price

of oranges from $7 to $9 a bushel increases the quantity of oranges supplied from 4,000 bushels to 6,000 bushels, the

A) supply of oranges is elastic. B) supply of oranges is inelastic. C) demand for oranges is elastic. D) demand for oranges is inelastic.

Answer: A

Topic: Calculating the Elasticity of Supply Skill: Analytical 121) A rise in the price of cabbage from $14 to $18 per

bushel, caused by a shift of the demand curve, in-creases the quantity supplied from 4,000 to 6,000 bushels. The elasticity of supply is

A) 0.6. B) 0.8. C) 1.0. D) 1.6.

Answer: D

Topic: Calculating the Elasticity of Supply Skill: Analytical 122) If a 5 percent increase in the price results in a 9

percent increase in quantity supplied, the elastic-ity of supply is

A) 0.30. B) 0.55. C) 1.20. D) 1.80.

Answer: D

Topic: Calculating the Elasticity of Supply Skill: Analytical 123) If a 5 percent increase in price results in a 3 per-

cent increase in the quantity supplied, the elastic-ity of supply is

A) 0.30. B) 0.60. C) 1.20. D) 1.66.

Answer: B

Topic: Inelastic and Elastic Supply Skill: Conceptual 124) A vertical supply curve indicates an elasticity of

supply that equals A) 0. B) 1. C) infinity. D) –1.

Answer: A

Topic: Inelastic and Elastic Supply Skill: Recognition 125) A horizontal supply curve indicates an elasticity of

supply that equals A) 0. B) 1. C) infinity. D) –1.

Answer: C

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Topic: Elasticity of Supply Skill: Recognition 126) In the above figure, the price elasticity of supply

at any given quantity is A) highest along S1, next highest along S2, and

lowest along S3.

B) highest along S3, next highest along S2, and

lowest along S1.

C) equal to zero on each of the three supply curves. D) equal to one on each of the three supply curves.

Answer: D

Topic: Elasticity of Supply Skill: Conceptual 127) The elasticity of supply for paintings by Monet is

A) perfectly elastic. B) perfectly inelastic. C) unit elastic. D) inelastic.

Answer: B

Topic: Elasticity of Supply Skill: Recognition 128) If the elasticity of supply of a good is zero, then its

A) supply curve is vertical. B) supply curve is horizontal. C) demand curve must be vertical. D) supply curve is positively sloped.

Answer: A

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 129) Which of the following leads a good to have a

high elasticity of supply? I. The good that must be produced using unique

resources. II. The good that is produced using commonly

available resources. A) I only B) II only C) I and II D) Neither I nor II.

Answer: B

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 130) The elasticity of supply is

A) positive and more elastic in the long run. B) positive and more elastic in the short run. C) negative and more elastic in the long run. D) negative and more elastic in the short run.

Answer: A

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 131) If a good is produced using inputs for which there

are no substitutes, the good’s A) elasticity of supply is likely to be small. B) elasticity of supply is likely to be large. C) elasticity of demand will be small. D) elasticity of demand will be large.

Answer: A

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 132) A determinant of the price elasticity of supply is

A) the extent to which consumers like the quality of the good.

B) the extent to which the demand for the good is relatively elastic.

C) the extent to which the good has many con-sumer substitutes.

D) the extent to which production of the good uses commonly available resources.

Answer: D


Topic: Factors That Influence the Elasticity of Supply Skill: Conceptual 133) A given change in demand will yield a larger

change in the quantity supplied A) the more elastic is supply. B) the longer the time frame under consideration. C) the more plentiful are the resources necessary to

produce the good of interest. D) All of the above answers are correct.

Answer: D

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 134) The elasticity of the momentary supply curve for

any good A) is necessarily equal to zero. B) is necessarily equal to one. C) is necessarily equal to positive infinity. D) None of the above answers is correct.

Answer: D

Topic: Factors That Influence the Elasticity of Supply Skill: Recognition 135) The momentary supply curve is ____ than the

____ supply curve. A) less elastic; long-run B) flatter; short-run C) more elastic; long-run D) None of the above answers is correct.

Answer: A

Study Guide Questions Topic: Study Guide Question, Calculating Elasticity Skill: Analytical 136) Suppose a 10 percent increase in the price of text-

books decreases the quantity demanded by 20 percent. The elasticity of demand for textbooks is

A) 0.2. B) 2.0. C) 5.0. D) 10.0.

Answer: B

Topic: Study Guide Question, Calculating Elasticity Skill: Analytical 137) The quantity of new cars increases by 10 percent.

If the price elasticity of demand for new cars is 1.25, the price of new cars will fall by

A) 2.5 percent. B) 8 percent. C) 10 percent. D) 12.5 percent.

Answer: B

Topic: Study Guide Question, Inelastic and Elastic Demand Skill: Conceptual* 138) Along a perfectly vertical demand curve, the price

elasticity of demand A) equals 0. B) is greater than 0 but less than 1.0. C) equals 1.0. D) is negative.

Answer: A

Topic: Study Guide Question, Inelastic and Elastic Demand Skill: Conceptual* 139) Perfectly elastic demand is represented by a de-

mand curve that A) is vertical. B) is horizontal. C) has a 45° slope. D) is a rectangular hyperbola.

Answer: B

Topic: Study Guide Question, Total Revenue and Elasticity Skill: Analytical 140) If the price elasticity of demand for a product

equals 1, as its price rises the A) quantity demanded increases. B) total revenue increases. C) quantity demanded does not change. D) total revenue does not change.

Answer: D

1 5 6 C H A P T E R 4

Topic: Study Guide Question, Factors That Influence the Elasticity of Demand Skill: Recognition 141) A product is likely to have a price elasticity of

demand that exceeds 1 when A) its price falls. B) the percentage of income spent on it decreases. C) it is a necessity. D) it has close substitutes.

Answer: D

Topic: Study Guide Question, Factors That Influence the Elasticity of Demand Skill: Recognition* 142) The demand for a good is more price inelastic if

A) its price is higher. B) the percentage of income spent on it is larger. C) it is a luxury good. D) it has no close substitutes.

Answer: D

Topic: Study Guide Question, Factors That Influence the Elasticity of Demand Skill: Recognition 143) Which of the following is likely to have the small-

est price elasticity of demand? A) An automobile B) A new automobile C) A new Ford automobile D) A new Ford Mustang

Answer: A

Topic: Study Guide Question, Elastic Demand Skill: Conceptual* 144) Business people often speak about price elasticity

without actually using the term. Which statement describes a good with an elastic demand?

A) “A price cut won’t help me. It won’t increase my sales, and I’ll just get less money for each unit.”

B) “I don’t think a price cut will help my bottom line any. Sure, I’ll sell a bit more, but I’ll more than lose because the price will be lower.”

C) “My customers are real shoppers. After I cut my prices just a few cents below those my competi-tors charge, customers have been flocking to my store and sales are booming.”

D) “The economic expansion has done wonders for my sales. With more people back at work, my sales are taking off!”

Answer: C

Topic: Study Guide Question, Elasticity Along a Straight-Line Demand Curve Skill: Conceptual 145) Moving up (to the left) along a linear demand

curve, the price elasticity of demand A) decreases. B) does not change. C) increases. D) at first increases and then decreases.

Answer: C

Topic: Study Guide Question, Total Revenue and Elasticity Skill: Conceptual* 146) If the price elasticity of demand equals 1.0, then

as the price falls the A) quantity demanded decreases. B) total revenue falls. C) quantity demanded does not change. D) total revenue does not change.

Answer: D

Topic: Study Guide Question, Total Revenue and Elasticity Skill: Conceptual 147) A rise in the price of a product lowers the total

revenue from the product if the A) income elasticity of demand exceeds 1. B) good is an inferior product. C) demand for the product is inelastic. D) demand for the product is elastic.

Answer: D

Topic: Study Guide Question, Total Revenue and Elasticity Skill: Conceptual* 148) By reviewing its sales records, IBM economists

discover that when it lowers the price of its per-sonal computers, the total revenue IBM obtains from the sale of its personal computers rises. Hence

A) supply of IBM personal computers is elastic. B) demand for IBM personal computers is elastic. C) supply of IBM personal computers is inelastic. D) demand for IBM personal computers is inelastic.

Answer: B


Topic: Study Guide Question, Total Revenue and Elasticity Skill: Analytical 149) If a 4 percent rise in the price of peanut butter

lowers the total revenue received by the producers of peanut butter by 4 percent, the demand for peanut butter

A) is elastic. B) is inelastic. C) is unit elastic. D) has an elasticity of 2.0.

Answer: A

Topic: Study Guide Question, Total Revenue and Elasticity Skill: Analytical* 150) When the price of a hot dog rises 10 percent,

your expenditure on hot dogs increases. Hence, it is certain that

A) hot dogs are a normal good for you. B) hot dogs are an inferior good for you. C) your demand for hot dogs is elastic. D) your demand for hot dogs is inelastic.

Answer: D

Topic: Study Guide Question, Cross Elasticity of Demand Skill: Conceptual* 151) For which of the following pairs of goods is the

cross elasticity of demand positive? A) Tennis balls and tennis rackets B) Videotapes and laundry detergent C) Airline trips and textbooks D) Beef and chicken

Answer: D

Topic: Study Guide Question, Cross Elasticity of Demand Skill: Analytical 152) A 10 percent decrease in the price of a Pepsi de-

creases the demand for a Coca-Cola by 50 per-cent. The cross elasticity of demand between a Pepsi and Coca-Cola is

A) 50. B) 10. C) 5. D) 0.20.

Answer: C

Topic: Study Guide Question, Cross Elasticity of Demand Skill: Analytical 153) A fall in the price of X from $12 to $8 causes an

increase in the quantity of Y demanded from 900 to 1,100 units. What is the cross elasticity of de-mand between X and Y?

A) 0.5. B) –0.5. C) 2. D) –2.

Answer: B

Topic: Study Guide Question, Income Elasticity of Demand Skill: Analytical 154) A 10 percent decrease in income decreases the

quantity demanded of compact discs by 3 per-cent. The income elasticity of demand for com-pact discs is

A) –0.3. B) 0.3. C) 3.3. D) 10.0.

Answer: B

Topic: Study Guide Question, Income Elasticity of Demand Skill: Conceptual* 155) All normal goods have

A) income elasticities of demand greater than 1.0. B) price elasticities of demand greater than 1.0. C) negative price elasticities of demand. D) positive income elasticities of demand.

Answer: D

Topic: Study Guide Question, Elasticity of Supply Skill: Analytical* 156) Suppose that the price elasticity of supply for oil

is 0.1. Then, if the price of oil rises by 20 percent, the quantity of oil supplied will increase

A) by 200 percent. B) by 20 percent. C) by 2 percent. D) by 0.2 percent.

Answer: C

1 5 8 C H A P T E R 4

Topic: Study Guide Question, Elasticity of Supply Skill: Analytical* 157) When the price of a CD is $13 per CD,

39,000,000 CDs per year are supplied. When the price is $15 per CD, 41,000,000 CDs per year are supplied. What is the elasticity of supply for CDs?

A) 2.86 B) 0.35 C) 0.14 D) 0.05

Answer: B

Topic: Study Guide Question, Elasticity of Supply Skill: Conceptual* 158) If the long-run supply of rice is perfectly elastic,

then A) as people’s incomes rise, the quantity of rice

supplied decreases. B) as the price of corn falls, the quantity of rice de-

manded decreases. C) in the long run, a large rise in the price of rice

causes no change in the quantity of rice sup-plied.

D) in the long run, an increase in the demand for rice leaves the price of rice unchanged.

Answer: D

Topic: Study Guide Question, Elasticity of Supply Skill: Conceptual* 159) The elasticity of supply does NOT depend on

A) resource substitution possibilities. B) the fraction of income spent on the product. C) the time elapsed since the price change. D) None of the above because all of the factors

listed affect the elasticity of supply. Answer: B

MyEconLab Questions

Topic: Parallel MyEconLab Questions Skill: Analytical 160) In the figure above, when the price of a disk is $B,

total revenue is shown in the graph by area A) BCF0. B) AGF0. C) FCDE. D) ADE0.

Answer: A


Topic: Parallel MyEconLab Questions, Elastic and Inelastic Demand Skill: Analytical 161) The above figure illustrates the demand curve for

a good. The good has A) no substitutes. B) only one substitute. C) only a few substitutes. D) many substitutes.

Answer: A

Topic: Parallel MyEconLab Questions, Elastic and Inelastic Demand Skill: Analytical 162) The elasticity of demand along the demand curve

shown in the above figure is constant and equal to 1. Thus,

A) area 0BCF equals area 0AGF. B) area 0BCF equals area FGDE. C) area 0BCF equals area 0ADE. D) area ABCG equals area 0AGF.

Answer: C

1 6 0 C H A P T E R 4

Topic: Parallel MyEconLab Questions, Elasticity On Straight-Line Demand Curve Skill: Analytical 163) The above figure shows a linear (straight-line)

demand curve. Start at point A and then moving to point B and then point C, the price elasticity of demand

A) increases. B) decreases. C) increases and then decreases. D) decreases and then increases.

Answer: B

MyEconLab Questions Topic: The Price Elasticity of Demand Level 1: Definitions and Concepts 164) The price elasticity of demand is equal to the

____ in the ____ divided by the ____ in the ____.

A) percentage change; price; percentage change; quantity demanded

B) change; price; change; quantity demanded C) percentage change; quantity demanded; per-

centage change; price D) change; quantity demanded; change; price

Answer: C

Topic: Inelastic and Elastic Demand Level 1: Definitions and Concepts 165) When the percentage change in quantity de-

manded is less than the percentage change in price, the demand for the good is ____.

A) inelastic B) unit elastic C) perfectly inelastic D) elastic

Answer: A

Topic: Inelastic and Elastic Demand Level 1: Definitions and Concepts 166) When the demand for a good is perfectly elastic,

____. A) total revenue is as large as possible B) the demand curve for the good is vertical C) the price elasticity of demand is infinite D) the price elasticity of demand is zero

Answer: C

Topic: Inelastic and Elastic Demand Level 1: Definitions and Concepts 167) If the demand for a good is elastic, the price elas-

ticity of demand is ____. A) greater than 1 B) equal to 1 C) between 0 and 1 D) less than zero

Answer: A

Topic: Inelastic and Elastic Demand Level 1: Definitions and Concepts 168) If the demand for a good is perfectly elastic, the

price elasticity of demand is ____ and the de-mand curve is ____.

A) infinite; vertical B) zero; vertical C) zero; horizontal D) infinite; horizontal

Answer: D


Topic: Elasticity Along a Straight-Line Demand Curve Level 1: Definitions and Concepts 169) The demand for bus rides is a downward-sloping

straight line demand curve. The price elasticity of demand for bus rides ____.

A) increases as the price of a bus ride falls B) decreases as the price of a bus ride falls C) is the same no matter what the price of a bus

ride D) decreases as the price of a bus ride rises

Answer: B

Topic: Total Revenue and Elasticity Level 1: Definitions and Concepts 170) When the supply of a good increases, the price of

the good ____ and total revenue from the sale of the good ____.

A) falls; can either increase or decrease B) falls; always increases C) falls; always decreases D) rises; can either increase or decrease

Answer: A

Topic: Total Revenue and Elasticity Level 1: Definitions and Concepts 171) When the demand for a good is inelastic and its

price increases, the total revenue from the sale of the good will ____.

A) increase B) decrease initially and then increase C) decrease D) not change

Answer: A

Topic: Cross Elasticity of Demand Level 1: Definitions and Concepts 172) Toothpaste and toothbrushes are complements, so

the ____ elasticity of demand is ____. A) cross; positive B) income; negative C) cross; negative D) income; positive

Answer: C

Topic: Income Elasticity of Demand Level 1: Definitions and Concepts 173) Bus rides and canned soup are inferior goods, so

the ____ elasticity of demand is ____. A) cross; positive B) income; positive C) income; negative D) cross; negative

Answer: C

Topic: Total Revenue and Elasticity Level 2: Using Definitions and Concepts 174) The price of a bus ride decreases, and the total

revenue of the bus company decreases. The de-mand for bus rides is ____.

A) perfectly elastic B) inelastic C) unit elastic D) elastic but not necessarily perfectly elastic

Answer: B

Topic: Inelastic and Elastic Demand Level 2: Using Definitions and Concepts 175) Marvin loves chocolate truffles. As the price of a

chocolate truffle increases from $1 to $2 to $3, Marvin continues to buy a dozen chocolate truf-fles every week. Marvin’s demand for chocolate truffles is ____.

A) elastic B) unit elastic C) illustrated by a horizontal demand curve D) perfectly inelastic

Answer: D

Topic: Calculating Elasticity Level 2: Using Definitions and Concepts 176) Dan sells newspapers. Dan says that a 4 percent

increase in the price of a newspaper will decrease the quantity of newspapers demanded by 8 per-cent. According to Dan, the demand for newspa-pers is ____.

A) inelastic B) unit elastic C) perfectly elastic D) elastic

Answer: D

1 6 2 C H A P T E R 4

Topic: Total Revenue and Elasticity Level 2: Using Definitions and Concepts 177) When demand is ____, a decrease in price ____

total revenue. A) elastic; decreases B) inelastic; decreases C) unit elastic; increases D) elastic; does not change

Answer: B

Topic: Factors That Influence the Price Elasticity of Demand Level 2: Using Definitions and Concepts 178) Webster Dictionaries and Oxford Dictionaries are

almost perfect substitutes. The price elasticity of demand for Webster Dictionaries ____.

A) is 1 B) depends on the complements for dictionaries C) is almost infinity D) is almost zero

Answer: C

Topic: Cross Elasticity of Demand Level 2: Using Definitions and Concepts 179) Blue pens and black pens are close substitutes.

The cross elasticity of demand for black pens with respect to the price of blue pens is ____.

A) positive B) negative C) equal to 1 D) zero

Answer: A

Topic: Cross Elasticity of Demand Level 2: Using Definitions and Concepts 180) If the cross elasticity of demand between goods X

and Y is positive and between goods X and Z is negative, then X and Y are ____ and X and Z are ____.

A) price inelastic; complements B) complements; substitutes C) substitutes; complements D) price inelastic; income elastic

Answer: C

Topic: Income Elasticity of Demand Level 2: Using Definitions and Concepts 181) Of the following goods, the North American de-

mand for ____ has the largest income elasticity of demand.

A) compact cars B) newspapers C) Mediterranean cruises D) rice

Answer: C

Topic: Income Elasticity of Demand Level 2: Using Definitions and Concepts 182) As Mary’s income increases by 20 percent, her

demand for tickets to National Hockey League games increases by 10 percent. Mary’s demand for tickets is income ____; for Mary, hockey tickets are ____ good.

A) elastic; a normal B) inelastic; a normal C) elastic; an inferior D) inelastic; an inferior

Answer: B

Topic: Inelastic and Elastic Supply Level 2: Using Definitions and Concepts 183) The supply of lettuce in the short run will be

____ than the supply in the long run and ____ than the supply today.

A) more elastic; less elastic B) more elastic; more elastic C) less elastic; more elastic D) less elastic; less elastic

Answer: C


Topic: Calculating Elasticity Level 3: Calculations and Predictions 184) The figure shows the demand curve for popsicles.

The price elasticity of demand when the price of a popsicle increases from $0.30 to $0.50 is ____.

A) 0 B) 1 C) 1/2 D) 2

Answer: B

Topic: Elasticity Along a Straight-Line Demand Curve Level 3: Calculations and Predictions 185) The figure illustrates Anne’s demand for books.

At ____ a book, Anne's demand for books is ine-lastic.

A) all prices between $15 and $30 B) all prices between $10 and $15 C) all prices between $10 and $20 D) all prices below $30

Answer: B

Topic: Factors That Influence the Price Elasticity of Demand Level 3: Calculations and Predictions 186) Pizza Hut pizza has more close substitutes than

does food. The price elasticity of demand for Pizza Hut pizza is ____ the price elasticity of de-mand for food.

A) not comparable to B) greater than C) less than D) the same as

Answer: B

1 6 4 C H A P T E R 4

Topic: Total Revenue and Elasticity Level 3: Calculations and Predictions 187) The figure illustrates the demand for eggs. At

what price will egg sellers maximize their total revenue?

A) above $0.75 a dozen B) $0.75 a dozen C) less than $0.75 a dozen D) $1.50 a dozen

Answer: B

Topic: Calculating Elasticity Level 3: Calculations and Predictions 188) The price elasticity of demand for videos is 2. If

the price of a video increased by 2 percent, the quantity demanded will ____.

A) decrease by 2 percent B) not change C) decrease by 4 percent D) decrease by 1 percent

Answer: C

Topic: Total Revenue and Elasticity Level 3: Calculations and Predictions 189) Sara’s Strawberry Market maximizes its total reve-

nue by selling strawberries for $1.25 a basket. At a price of $1.25, you predict that ____

A) the demand for strawberries is inelastic B) Sara’s sells most of the strawberries that she

grows C) the demand for strawberries is elastic D) the demand for strawberries is unit elastic

Answer: D

Topic: Cross Elasticity of Demand Level 3: Calculations and Predictions 190) Donuts and coffee are complements. When the

price of a donut increases, the demand for coffee ____ and the cross elasticity of demand for coffee with respect to the price of a donut is ____.

A) decreases; negative B) increases; negative C) increases; positive D) decreases; positive

Answer: A

Topic: Income Elasticity of Demand Level 3: Calculations and Predictions 191) If when income increases by 2 percent and the

price does not change, the quantity of airplane travel demanded increases by 6 percent, then the income elasticity of demand of airplane travel is ____.

A) 0.33 B) 0 C) negative D) 3.00

Answer: D


Topic: Income Elasticity of Demand Level 3: Calculations and Predictions 192) The figure shows the relationship between

Moira’s income and the quantity of macaroni that she demands. When income is less than $350 per month, macaroni ____.

A) is an inferior good B) is a normal good C) has many substitutes D) has negative income elasticity

Answer: B

Price (dollars per dozen)

Quantity supplied(dozens per day)

30 8 50 12

Topic: Calculating the Elasticity of Supply Level 3: Calculations and Predictions 193) The table gives some data on the supply of roses

in a small town. When the price rises from $15 a dozen to $25 a dozen, the elasticity of supply is ____.

A) 1.25 B) 5.00 C) 0.20 D) 0.80

Answer: D

Topic: Calculating Elasticity Level 4: Advanced Calculations and Predictions 194) The figure illustrates the demand for hamburgers.

When the price is $1.00 a hamburger, the elastic-ity of demand is ____ and a 1 percent increase in the price will ____ the quantity of hamburgers demanded by ____ percent.

A) 1.00; decrease; 0.40 B) 0.40; decrease; 0.40 C) 2.50; increase; 2.50 D) 5.00; decrease; 5.00

Answer: B

Topic: Calculating Elasticity Level 4: Advanced Calculations and Predictions 195) A decrease in the supply of sugar increases the

price of sugar from $1.00 a packet to $1.25 a packet. The quantity decreases from 100 packets a day to 80 packets a day. The price elasticity of demand of sugar is ____.

A) 0.75 B) 0.5 C) 1.0 D) 1.25

Answer: C

1 6 6 C H A P T E R 4

Topic: Factors That Influence the Price Elasticity of Demand Level 4: Advanced Calculations and Predictions 196) Suppose that taxation accountants increase the

price for their service by 20 percent. The short-run demand for their service is less elastic than the long-run demand because in the long run con-sumers will ____.

A) spend less on this service B) experience an increase in income C) try to avoid paying their income tax D) find other ways to calculate the income tax they

must pay Answer: D

Topic: Total Revenue and Elasticity Level 4: Advanced Calculations and Predictions 197) The figure illustrates the demand for magazines.

Newsagents will maximize their total revenue when they ____.

A) sell 375 magazines a day B) sell as many magazines as they can C) charge $2.50 a magazine D) sell 750 magazines a day

Answer: A

Topic: Total Revenue and Elasticity Level 4: Advanced Calculations and Predictions 198) When the price of a Caesar salad is $5.00, the

demand for Caesar salads is elastic, and when the price is $4.00, the demand is inelastic. If Mike’s Roadside Restaurant cuts the price from $5.00 to $4.00, its total revenue from Caesar salads ____.

A) will increase B) will decrease C) will remain the same D) might increase, decrease, or remain the same

Answer: D

Topic: Total Revenue and Elasticity Level 4: Advanced Calculations and Predictions 199) The figure illustrates the demand for peanuts. If

the price falls from $12 to $9 a bag, total revenue will ____, but if the price rises from $3 to $6 a bag, total revenue will ____.

A) increase; decrease B) increase; increase C) decrease; increase D) decrease; decrease

Answer: B


Topic: Cross Elasticity of Demand Level 4: Advanced Calculations and Predictions 200) If tea and coffee are substitutes, the cross elasticity

of coffee with respect to the price of tea will be ____ and an increase in the price of tea will ____ the demand for coffee.

A) positive; increase B) negative; decrease C) negative; increase D) positive; decrease

Answer: A

Topic: Cross Elasticity of Demand Level 4: Advanced Calculations and Predictions 201) If a 5 percent increase in the price of good A leads

to a 4 percent decrease in the demand for good B, then ____.

A) the goods are substitutes B) only one good is a normal good C) the goods are complements D) both goods are normal goods

Answer: C

Topic: Income Elasticity of Demand Level 4: Advanced Calculations and Predictions 202) The income elasticity of demand of vacations is 5.

If incomes increase by 3 percent next year, the quantity of vacations demanded at today's price will increase by ____ percent.

A) 3 B) 5/3 C) 15 D) 5

Answer: C

Topic: Calculating the Elasticity of Supply Level 4: Advanced Calculations and Predictions 203) If a 5 percent change in the price of a good leads

to a 10 percent change in the quantity supplied, then the supply of the good is ____ and the elas-ticity of supply is ____.

A) inelastic; 0.5 B) inelastic; 2.0 C) elastic; 0.5 D) elastic; 2.0

Answer: D

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