A vertical demand curve has
A) infinite elasticity.
B) positive elasticity.
C) zero elasticity.
D) negative elasticity.
Answer: C
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Define an efficient market
What will be an ideal response?
Refer to Figure 4-10. Suppose that instead of a price ceiling, the government imposed a price floor of R1. What is the area representing consumer surplus after the imposition of the price floor?
A) A + B + D B) B + C + D + E C) A D) C + E
The use of data in economic models is important because
A) the model's predictive value rests on supportive evidence from real-world data. B) the models are always complex in nature. C) models must analyze every possible angle of the problem. D) social problems analyzed by economists require long streams of data.
The market for a perfectly competitive industry clears at a price of $3, and the minimum average cost for all firms is $2.50 . In the long run, we would expect an increase in
a. each firm's output. b. the number of firms. c. each firm's profit. d. each firm's average cost.