Coordination, Communication, and Common Knowledge: A Retrospective on the Electronic-mail Game
回顾共同知识在协调问题中的作用，以电子邮件博弈为例，论证相关见解有助于解释不确定性下人们如何协调以及沟通在协调行为中的角色。
Common knowledge plays an important role in coordination problems and coordination problems are central to many areas of economic policy. In this paper, I review some common-knowledge puzzles culminating in the electronic-mail game. These puzzles may seem distant from practical concerns. However, I then argue why insights derived from this literature are useful in interpreting empirical evidence of how people coordinate under uncertainty and in understanding the role of communication in coordinating behaviour.