The Nash-Threats Folk Theorem with Communication and Approximate Common Knowledge in Two Player Games
We show that the use of communications to coordinate equilibria generates a Nash-threats folk theorem in two-player games with “almost public†information. The results generalize to the <i>n</i>-person case. However, the two-person case is more difficult because it is not possible to sustain equilibria by comparing the reports of different players, and using these “third parties†to effectively enforce contracts.