Yakov Babichenko

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Completely uncoupled dynamic is a repited play of a game, when in every given time the action of every player depends only on his own payo¤s in the past. In this paper we try to formulate the minimal set of necessary conditions that guarantee a convergence to a Nash equilibrium in completely uncoupled model. The main results are: 1. The convergence to a(More)
We study lower bounds on the query complexity of determining correlated equilibrium. In particular, we consider a query model in which an <i>n</i>-player game is specified via a black box that returns players' utilities at pure action profiles. In this model, we establish that in order to compute a correlated equilibrium, any <i>deterministic</i> algorithm(More)
We study the problemof reaching a pureNash equilibrium inmulti-person games that are repeatedly played, under the assumption of uncoupledness: EVERY player knows only his own payoff function. We consider strategies that can be implemented by finite-state automata, and characterize the minimal number of states needed in order to guarantee that a pure Nash(More)