First, they are specific to the case of constant elasticity.

首先，他是限定了弹性的某种特殊情况。

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2 (Exercise) For the case of constant elasticity of demand, what is marginal revenue?

在需求弹性不变的情况下，边际收益是多少？

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In fact, the elasticity may be not a constant, but change.

在实际中，要素弹性系数往往是动态变化的。

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In fact, the elasticity may be not a constant, but change.

在实际中，要素弹性系数往往是动态变化的。

youdao