在现实的经济环境中,对于个别行为者而言,他所掌握的与某一交易行为和交易结果有关的信息都可分为两个部分:一部分是所有行为者或当事人双方都了解的信息,我们称之为公共信息;另一部分则是只有某个行为者自己知道,其它行为者或对方当事人所不了解的信息,我们称之为私人信息。例 In a real economic environment, for individual actors, the information he has about a transaction and the outcome of a transaction can be divided into two parts: one is information that is understood by all actors or both parties, and we Called the public information; the other part is only one actor knows, other actors or other parties do not understand the information, we call it private information. example