题目内容

When some resources used in production are only available in limited quantities, it is likely that the long-run supply curve in a competitive market is

A. downward sloping.
B. upward sloping.
C. horizontal.
D. vertical.

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For a firm operating in a perfectly competitive industry, total revenue, marginal revenue, and average revenue are all equal.

A. 对
B. 错

When an individual firm in a competitive market increases its production, it is likely that the market price will fall.

A. 对
B. 错

Firms in a competitive market are said to be price takers because there are many sellers in the market, and the goods offered by the firms are very similar if not identical.

A. 对
B. 错

A firm operating in a competitive market will stay in business in the short run so long as the market price exceeds the firm’s average total cost; otherwise, the firm will shut down.

A. 对
B. 错

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