需求的收益弹性(income elasticity of dand) 垄断的没成心义损掉 ( deadweight loss of monopoly ) 中心品(intermediate good) ..
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在需求弹性不变的情况下，边际收益是多少？
2 (Exercise) For the case of constant elasticity of demand, what is marginal revenue?
研究结果表明，为了实现既定的需求价格弹性或边际收益，对应的需求函数有无穷多个。
The results show that there are infinite demand functions which can realize given demand price elasticity and given marginal return.
举例分析了需求弹性变动对产品销售量的影响，得出了价格变动如何影响销售收益的结论。
It gives examples to analyze the change of demand elasticity has an influence over the sales volume of products and reaches a conclusion that how the price fluctuation influences the benefit sales.
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