Coordination Failure in Repeated Games with Almost-Public Monitoring, Second Version

Author(s):  
George J. Mailath ◽  
Stephen Edward Morris
Author(s):  
George J. Mailath ◽  
Steven A. Matthews ◽  
Tadashi Sekiguchi

We present three examples of finitely repeated games with public monitoring that have sequential equilibria in private strategies, i.e., strategies that depend on own past actions as well as public signals. Such private sequential equilibria can have features quite unlike those of the more familiar perfect public equilibria: (i) making a public signal less informative can create Pareto superior equilibrium outcomes; (ii) the equilibrium final-period action profile need not be a stage game equilibrium; and (iii) even if the stage game has a unique correlated (and hence Nash) equilibrium, the first-period action profile need not be a stage game equilibrium.


Author(s):  
Daehyun Kim ◽  
Xiaoxi Li

This paper defines a general framework to study infinitely repeated games with time-dependent discounting in which we distinguish and discuss both time-consistent and -inconsistent preferences. To study the long-term properties of repeated games, we introduce an asymptotic condition to characterize the fact that players become more and more patient; that is, the discount factors at all stages uniformly converge to one. Two types of folk theorems are proven without the public randomization assumption: the asymptotic one, that is, the equilibrium payoff set converges to the feasible and individual rational set as players become patient, and the uniform one, that is, any payoff in the feasible and individual rational set is sustained by a single strategy profile that is an approximate subgame perfect Nash equilibrium in all games with sufficiently patient discount factors. We use two methods for the study of asymptotic folk theorem: the self-generating approach and the constructive proof. We present the constructive proof in the perfect-monitoring case and show that it can be extended to time-inconsistent preferences. The self-generating approach applies to the public-monitoring case but may not extend to time-inconsistent preferences because of a nonmonotonicity result.


2002 ◽  
Vol 102 (1) ◽  
pp. 189-228 ◽  
Author(s):  
George J. Mailath ◽  
Stephen Morris

2013 ◽  
Vol 148 (5) ◽  
pp. 1891-1928 ◽  
Author(s):  
Takuo Sugaya ◽  
Satoru Takahashi

Sign in / Sign up

Export Citation Format

Share Document