边际效用递减是用的基数效用吗？

wxm1101 发表于 2009-2-15 22:59
为了避免混淆，先写下正确的观点，后面再进行解释。１、现代微观经济学公认，应当使用序数效用，而不是基数 ...

说的很对，像鲍莫尔的教科书经济学原理与政策，在使用边际效用递减推倒需求曲线的时候，在脚注里强调基数和序数的区分：Note to Instructors: You will recognize that, although not using the terms, we are distinguishing here betweenneoclassical cardinal utility and ordinal utility. Moreover, throughout the book, marginal utility in money terms (ormoney marginal utility) is used as a synonym for the marginal rate of substitution between money and the commodity.

还是需要量化一些更好