Which of the following statements best summarizes the law of diminishing marginal returns?
A) In the short run, as more labor is hired, output diminishes.
B) In the short run, as more labor is hired, output increases at a diminishing rate.
C) In the short run, the amount of labor a firm will hire diminishes as output increases.
D) As more labor is hired, the length of time that defines the short run diminishes.
B
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Which of the following statements is not correct?
A. A price ceiling set at $9 would result in a surplus. B.A price floor set at $14 would be binding, but a price floor set at $8 would not be binding. C.A price ceiling set at $8 would be binding, but a price ceiling set at $12 would not be binding. D. A price floor set at $11 would result in a surplus.
The key disadvantage of the kinked-demand model is that it:
A) explains why firms may collude, but it does not explain how they interact. B) does not explain why prices may be rigid in an oligopoly. C) requires the assumptions of perfect competition. D) only holds under price leadership.