D4 Published development or research report or study

Subgame Perfect Equilibria in Continuous-Time Repeated Games




AuthorsMitri Kitti

PublisherAboa Centre for Economics

Publishing placeTurku

Publication year2018

Series titleAboa Centre for Economics, Discussion paper

Number in series120

ISSN1796-3133

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/37429441


Abstract

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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