单选题 A monopolist will expand production until MR=MC and charge a price determined by the:
  • A. demand curve.
  • B. marginal cost curve.
  • C. average total cost curve.
【正确答案】 A
【答案解析】[解析] 如图所示，垄断厂商在根据MR=MC的利润最大化条件确定产量Q0后，其向消费者收取的价格取决于需求曲线d，即Q0所对应的P0。
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