题目内容

[判断]Monopolists can achieve any level of profit they desire because they have unlimited market power.

A. 对
B. 错

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[判断]The fundamental cause of monopolies is barriers to entry.

A. 对
B. 错

[判断]Copyrights and patents are examples of barriers to entry that give firms monopoly pricing powers.

A. 对
B. 错

[判断] Like competitive firms, monopolies choose to produce a quantity in which marginal revenue equals marginal cost.

A. 对
B. 错

[判断] At the profit-maximizing quantity of output for a monopolist, average revenue, marginal revenue, and price are all equal.

A. 对
B. 错

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