上面的效用函数也有每种商品边际效用递减的性质。
The above utility function also has the property of diminishing marginal utility for each commodity.
但某种意义上,边际效用和边际效用递减概念的胜利走得太远了。
However, the triumph of marginal and diminishing marginal utility has, in a sense, been carried too far.
该函数在两方面与前面的函数不同:不再是边际效用递减,边际效用是相互依赖的。
This function differs from the former in two senses: there is no longer diminishing marginal utility and there is dependence.
The exact shape of the curve is subject to discussion, but the point of diminishing marginal utility is that, as you get more and more money, the increment in utility for each extra dollar diminishes.
这条曲线的确切形状还有待讨论,但是边际效用递减规律的重点在于,你得到的钱越多,每额外的一美元的增长效用会相对减小
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