题目
题目

AP Economics-Hillebrand AP Microeconomics Sem 1 Exam 2025 - Requires Respondus LockDown Browser

单项选择题

Assume that, for a perfectly competitive firm, marginal cost equals average variable cost at $10, marginal cost equals average total cost at $15, and marginal revenue equals marginal cost at $12. On the basis of this information, the firm should

选项
A.operate in the short run, even though it will sustain a loss
B.operate in the long run, because it will make an economic profit of $3 per unit
C.operate in the short run, because it will make an economic profit of $3 per unit
D.operate in the short run, but decrease output to decrease its cost
E.close down in the short run
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标准答案
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思路分析
We start by restating the given information and what it implies for output decision in perfect competition. - The firm is operating where MR = MC, since MR equals MC at 12, the profit-maximizing (or loss-minimizing) output occurs where MR = MC. - It is also given that MC = AVC at $10 and MC = ATC at $15. This means: at the output where MC = 12, the corresponding AVC must be below 12 (since MC > AVC to the right of the MC = AVC intersection), and the corre......Login to view full explanation

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