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传统的经济理论只是在假定完全信息的条件下研究经济问题,这显然是对现实的一种高度简化。20世纪60年代以来,人们开始研究不完全信息条件下的经济行为。不对称信息理论是信息经济学的核心,指在日常经济活动中,由于某些参与人拥有另一些参与人未拥有的信息,由此造成的不对称信息情况下产生的交易关系和契约安排的经济理论。当信息不完全或者说不对等时,一方占有信息
Traditional economic theory only studies economic problems under the assumption of complete information, which is obviously a highly simplified reality. Since the 1960s, people began to study the economic behavior under the condition of incomplete information. Asymmetric information theory is the core of information economics, refers to the daily economic activities, as some participants have other participants do not have the information, the resulting asymmetric information arising from the transaction relationship and contractual arrangements Economic theory. When information is incomplete or unequal, one occupies the information