We study communication in a two-player coordination game with Pareto-ranked equilibria. Prior research demonstrates … that efficient coordination is difficult without communication but obtains regularly with (mandatory) costless pre …-play messages. In a laboratory experiment, we modify communication by making the sending of messages optional and costly. Even small …

We examine communication in a two-player coordination game with Pareto-ranked equilibria. Prior research demonstrates … that efficient coordination is difficult without communication but obtains regularly with (mandatory) costless pre …-play messages. In a laboratory experiment, we introduce two realistic features of communication by making the sending of messages …