Transcript Ch5
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Elasticities of
Demand and Supply
5
CLICKER QUESTIONS
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Checkpoint 5.1
Checkpoint 5.2
Checkpoint 5.3
Question 1
Question 4
Question 7
Question 2
Question 5
Question 8
Question 3
Question 6
Question 9
Question 10
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CHECKPOINT 5.1
Question 1
The demand for a good is elastic if
A. consumers respond strongly to changes in the price of
the good.
B. a large percentage change in price brings about a small
percentage change in quantity demanded.
C. a small percentage change in price brings about a small
percentage change in quantity demanded.
D. the quantity demanded is not responsive to price
changes.
E. a change in the quantity demanded brings a small
change in the price of the good.
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CHECKPOINT 5.1
Question 2
The price of a bag of pretzels rises from $2 to $3, and the
quantity demanded decreases from 100 bags to 60 bags.
The price elasticity of demand for pretzels is ________.
A. 1.0
B. 1.25
C. 40.0
D. 20.0
E. 0.80
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CHECKPOINT 5.1
Question 3
When a firm raises the price of its product, the firm’s total
revenue _________.
A.
B.
C.
D.
E.
decreases if demand for its product is unit elastic
increases if demand for its product is unit elastic
decreases if demand for its product is inelastic
increases if demand for its product is elastic
decreases if demand for its product is elastic
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CHECKPOINT 5.2
Question 4
If, when the price of a good rises by 10 percent, the quantity
supplied of the good increases by 5 percent, then the
elasticity of supply ________.
A.
B.
C.
D.
E.
exceeds 1, and the supply of the good is elastic
is negative, and the supply of the good is inelastic
is less than 1, and the supply of the good is elastic
is less than 1, and the supply of the good is inelastic
exceeds 1 and the supply of the good is inelastic
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CHECKPOINT 5.2
Question 5
The greater the amount of time that passes after the price of
a good changed, the ___________ of that good becomes.
A.
B.
C.
D.
E.
less elastic the supply
more elastic the supply
more negative the supply
steeper the supply curve
more inelastic the supply
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CHECKPOINT 5.2
Question 6
The supply of beachfront property on St. Simon’s Island is
________.
A.
B.
C.
D.
E.
elastic
unit elastic
negative
inelastic
perfectly elastic
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CHECKPOINT 5.3
Question 7
To determine whether two goods are complements or
substitutes, economists use the _______.
A.
B.
C.
D.
E.
price elasticity of supply
cross elasticity of demand
price elasticity of demand
income elasticity of demand
substitute elasticity of demand
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CHECKPOINT 5.3
Question 8
The income elasticity of demand for used cars is less than
zero. So, used cars are _____.
A.
B.
C.
D.
E.
a good with an inelastic demand
a normal good
an inferior good
a perfectly inelastic good
substitute goods
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CHECKPOINT 5.3
Question 9
When income increases by 6 percent, the demand for
potatoes decreases by 2 percent.
The income elasticity of demand for potatoes equals _____.
A. 2.00
B. 3.00
C. 3.00
D. 0.33
E. 0.33
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CHECKPOINT 5.3
Question 10
If two goods have a cross elasticity of demand of 2, then
when the price of one good increases, the demand for the
other good _________, and the two goods are ______.
A.
B.
C.
D.
E.
increases; complements
decreases; complements
remains unchanged; complements
might increase or decrease; substitutes
decreases; substitutes
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