Subgame Perfection in Positive Recursive Games with Perfect Information
Mathematics of Operations Research
Perfect-Information Games with Lower-Semicontinuous Payoffs
Mathematics of Operations Research
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We introduce a new approach to studying subgame-perfect equilibrium payoffs in stochastic games: the differential equations approach. We apply our approach to quitting games with perfect information. Those are sequential games in which at every stage one ofn players is chosen; each player is chosen with probability 1/ n. The chosen playeri decides whether to quit, in which case the game terminates and the terminal payoff is some vectora i?Rn , or whether to continue, in which case the game continues to the next stage. If no player ever quits, the payoff is some vectora* ?Rn . We define a certain differential inclusion, prove that it has at least one solution, and prove that every vector on a solution of this differential inclusion is a subgame-perfect equilibrium payoff.