D4 Published development or research report or study
Subgame Perfect Equilibria in Continuous-Time Repeated Games
Authors: Mitri Kitti
Publisher: Aboa Centre for Economics
Publishing place: Turku
Publication year: 2018
Series title: Aboa Centre for Economics, Discussion paper
Number in series: 120
ISSN: 1796-3133
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/37429441
This paper considers subgame perfect equilibria of continuous-time repeated games with perfect monitoring when immediate reactions to deviations are allowed. The set of subgame perfect equilibrium payoffs is shown to be a fixed-point of a set-valued operator introduced in the paper. For a large class of discrete time games the closure of this set corresponds to the limit payoffs of when the discount factors converge to one. It is shown that in the continuous-time setup pure strategies are sufficient for obtaining all equilibrium payoffs supported by the players' minimax values. Moreover, the equilibrium payoff set is convex and satisfies monotone comparative statics when the ratios of players' discount rates increase.
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