However, there are many firms that have market power or monopoly power, which means that they can increase their price above marginal cost and sustain sales for a long period of time. [1].
但同时许多企业具有一定的市场势力或者说是垄断势力，这意味着他们能够长期将价格定在边际成本之上。
Thus, a monopoly chooses a quantity qm where marginal revenue equals marginal cost, and charges the maximum price p(qm) the market will bear at that quantity.
这样，垄断者将选择生产当边际收益与边际成本相同时的产量qm。 然后向市场收取那个产量下市场能够承受的最大价格p(qm)。
Perfect Competition and Monopoly emphasize the roles of average cost and marginal cost curves.
完善竞争和垄断，强调角色的均匀本钱和边沿本钱曲线。
In this case, the enterprises 'pricing is between the marginal cost pricing and the monopoly pricing.
这时，企业的定价介于垄断定价与边际成本定价之间。
Describe the two problems that arise when regulators tell a natural monopoly that it must set a price equal to marginal cost.
当管制者告诉自然垄断者其价格必须等于边际成本时，会有哪两个问题？
Describe the two problems that arise when regulators tell a natural monopoly that it must set a price equal to marginal cost.
当管制者告诉自然垄断者其价格必须等于边际成本时，会有哪两个问题？
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