Best-Response dynamics in two-person random games with correlated payoffs

Fuente: arXiv
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Autori principali: Mimun, Hlafo Alfie, Quattropani, Matteo, Scarsini, Marco
Natura: Preprint
Pubblicazione: 2022
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author Mimun, Hlafo Alfie
Quattropani, Matteo
Scarsini, Marco
author_facet Mimun, Hlafo Alfie
Quattropani, Matteo
Scarsini, Marco
contents We consider finite two-player normal form games with random payoffs. Player A's payoffs are i.i.d. from a uniform distribution. Given p in [0, 1], for any action profile, player B's payoff coincides with player A's payoff with probability p and is i.i.d. from the same uniform distribution with probability 1-p. This model interpolates the model of i.i.d. random payoff used in most of the literature and the model of random potential games. First we study the number of pure Nash equilibria in the above class of games. Then we show that, for any positive p, asymptotically in the number of available actions, best response dynamics reaches a pure Nash equilibrium with high probability.
format Preprint
id arxiv_https___arxiv_org_abs_2209_12967
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Best-Response dynamics in two-person random games with correlated payoffs
Mimun, Hlafo Alfie
Quattropani, Matteo
Scarsini, Marco
Computer Science and Game Theory
Theoretical Economics
Probability
91A05, 91A26, 91A14, 60G40
We consider finite two-player normal form games with random payoffs. Player A's payoffs are i.i.d. from a uniform distribution. Given p in [0, 1], for any action profile, player B's payoff coincides with player A's payoff with probability p and is i.i.d. from the same uniform distribution with probability 1-p. This model interpolates the model of i.i.d. random payoff used in most of the literature and the model of random potential games. First we study the number of pure Nash equilibria in the above class of games. Then we show that, for any positive p, asymptotically in the number of available actions, best response dynamics reaches a pure Nash equilibrium with high probability.
title Best-Response dynamics in two-person random games with correlated payoffs
topic Computer Science and Game Theory
Theoretical Economics
Probability
91A05, 91A26, 91A14, 60G40
url https://arxiv.org/abs/2209.12967