The paper presents a version of the EMAIL Game, originally proposed by Rubinstein (AER,1989), in which efficient coordination is shown to obtain even when the relevant coordination game is not mutual knowledge. In the model investigated a mediator is introduced in such a way that the two...

In the Email Game (Rubinstein, AER 89) noisy information channels may prevent efficient coordination, even when the game is almost common knowledge. In the paper we show that this is the case whenever message failure probabilities are not sufficiently different. Quite intuitively, the extent of...