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。
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].
我要去买一个，因为我的边际价值超过了市场价格。
I'm going to buy one, because my marginal value exceeds the market price.
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)。
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.
在信息是不完全的市场中，价格不可能等于边际成本。
In markets with imperfect information, price cannot equal marginal cost.
如果没有充分理由认为市场价格偏离了社会边际成本，市场价格就是很好的尺度。
Market prices serve well if there is no strong reason to believe they depart from social marginal costs.
不存在外部市场时，以中间产品的边际成本为转移价格优于协议价和标准成本价。
If there are not external markets, taking the marginal cost of intermediate products as the transfer price is better than the bargain price or standard cost.
现在我要买第二个，因为我的边际价值仍然超过市场价格。
Now I'm going to buy a second one, because my marginal value still exceeds the market price...
不存在外部市场时，以中间产品的边际成本为转移价格优于协议价和标准成本价。
If there are not external markets, taking the marginal cost of intermediate products as the transfer price is better t...
无功功率实时电价具有丰富的系统边际成本信息，是计算电力市场下的无功功率价格的一种较好的方法。
The spot price of the reactive power contains rich information about the marginal operational cost of the power system. It's a good measure for computing the reactive power price on power market.
根据电力零售市场的特点，基于负荷价格响应的定义以及边际成本定价理论，推导出了考虑负荷价格响应的有功实时电价的表达式。
Based on the concept of load-price elasticity, the principle of marginal cost pricing, and conditions of the deregulated retail electricity market, the model of spot pricing was deduced.
系统边际电价作为电力市场最终的交易价格，对电力交易有着重要的影响。
System marginal price SMP determines the final electrical price and greatly influences the electricity trade.
系统边际电价作为电力市场最终的交易价格，对电力交易有着重要的影响。
System marginal price SMP determines the final electrical price and greatly influences the electricity trade.
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