Marginal Utility Function的意思|示意

In this function there is dependence and increasing marginal utility for both X and y.

在该函数中，X和Y的边际效用都是相互依赖的和递增的。

This function differs from the former in two senses: there is no longer diminishing marginal utility and there is dependence.

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。

The above utility function also has the property of diminishing marginal utility for each commodity.

上面的效用函数也有每种商品边际效用递减的性质。