人是理性的吗?经济学家一般回答说,是。所以翻开任何一本经济学著作,无论是暗示还是明示,他都预先假定人一定是理性的。例如在买衣服的时候,谁都会对一件衣服值多少钱有个合理的评估;在开始做任何事情之前,总会有一个预先的计划;对于多人参与的同一件事情,别人是怎么考虑的一定有 Are people rational? Economists generally reply, yes. So to turn any economic book open, whether implied or explicit, he presupposes that man must be rational. For example, when buying clothes, who will have a reasonable valuation of how much a dress worth; before starting anything, there will always be a pre-plan; for the same thing involving many people, how others consider There must be