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 is an element of [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.

Mimun, H.A., Quattropani, M., Scarsini, M. (2024). Best-response dynamics in two-person random games with correlated payoffs. GAMES AND ECONOMIC BEHAVIOR, 145, 239-262 [10.1016/j.geb.2024.03.011].

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

Quattropani, Matteo;
2024-01-01

Abstract

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 is an element of [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.
2024
Mimun, H.A., Quattropani, M., Scarsini, M. (2024). Best-response dynamics in two-person random games with correlated payoffs. GAMES AND ECONOMIC BEHAVIOR, 145, 239-262 [10.1016/j.geb.2024.03.011].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/491307
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact