CFA level 1 真题 1998 经济学 (不懂为什么) decrease, increase, revenue, whether, 经济学

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 43. If a profit-maximizing firm finds that its marginal revenue exceeds its marginal cost, the firm
should:
A. increase output no matter whether the firm is a price taker or a price searcher.
B. decrease output no matter whether the firm is a price taker or a price searcher.
C. increase output if the firm is a price taker but not necessarily if the firm is a price
searcher.
D. increase output if the firm is a price searcher but not necessarily if the firm is a price
taker.