要看他喝什么酒啦 他喜欢喝白酒 你给他和啤酒 那就.......

醉汉不符合理性人的假定条件

32# 砍柴剑客
理性人的定义是有限资源得到最大效用，醉汉在喝醉之前是理性还是不理性。再说，即使喝醉以后判断其是否理性也不容易。

17# yuanjackson

我和你是一个意思，喝酒的效用和喝醉的效用不是同一个概念，放在一起有张冠李戴之嫌。我后来只是重述下楼主的观点，以使之更能被理解和讨论。

A：边际效用递减啊！
B：所以越喝越想喝！

推荐微观经济学！

微观经济学是在一系列的假定条件下得到的理论框架
本文来自: 人大经济论坛 详细出处参考：http://www.pinggu.org/bbs/viewth ... &from^^uid=272437

博大精深，博大精深，太博大精深了！它教人“吃饭吃一半，撒尿不撒完”，但他们自己从不这样做！只希望别人都做“范先生”。哈哈哈哈。。。。。。。。

边际效用递减在某种情况下可以理解为边际效用最终会递减的

也说diminishing marginal utility:
Utility is the importance that we attach to things. We make choices on the basis of this importance. Indeed, in economic terms, "utility," "importance," and "value" are synonyms. We choose what is more important to us and give up what is less important. Utility is subjective.
Carl Menger (1840–1921) is the father of this subjective theory of value. He states, "value is therefore nothing inherent in goods, no property of them, but merely the importance that we first attribute to the satisfaction of our needs, that is, to our lives and well-being."
There is no economist — except those who adhere to the failed labor theory of value — who denies this proposition. However, it seems there are many who, along the way, have forgotten what Menger meant by "diminishing marginal utility."
The  postulates of the subjective theory of value: (1) utility is always marginal, and (2) something has utility only if it satisfies a human end.
The law of diminishing marginal utility simply states that every additional unit of a homogeneous good or service is worth less than the previous unit. This law follows directly from the fact that we attach different value to different things, the fact that we choose more valuable things over less valuable things, and the fact that we exist in time. The first unit of a homogeneous good or service is the most valuable because we use it for the satisfaction of the most important end.
The second unit goes for satisfaction of the second most important end. Thus, the second unit is less valuable than the first unit. The third unit is less valuable than the second for the same reason, and so forth.
The law of diminishing marginal utility is "more than merely empirically demonstrable: it is irrefutably true."

都醉了还觉得舒服那是因为他神志不清了吧

抛物线！！！

先把定义理解清楚再问

是有假设条件的啊

边际效用递减规律是在一定范围才能成立的 换句话说不是所有的地方都适用的

也会递减，身体越来越差了

楼上正确！