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Learning with minimal information in continuous games

Abstract : While payoff-based learning models are almost exclusively devised for finite action games, where players can test every action, it is harder to design such learning processes for continuous games. We construct a stochastic learning rule, designed for games with continuous action sets, which requires no sophistication from the players and is simple to implement: players update their actions according to variations in own payoff between current and previous action. We then analyze its behavior in several classes of continuous games and show that convergence to a stable Nash equilibrium is guaranteed in all games with strategic complements as well as in concave games, while convergence to Nash occurs in all locally ordinal potential games as soon as Nash equilibria are isolated.
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https://hal-amu.archives-ouvertes.fr/hal-02534257
Contributor : Elisabeth Lhuillier <>
Submitted on : Monday, April 6, 2020 - 8:29:00 PM
Last modification on : Friday, July 17, 2020 - 9:15:46 AM

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  • HAL Id : hal-02534257, version 1

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Sebastian Bervoets, Mario Bravo, Mathieu Faure. Learning with minimal information in continuous games. Theoretical Economics, Econometric Society, In press. ⟨hal-02534257⟩

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