On Nash Equilibria in Play-Once and Terminal Deterministic Graphical Games

Fuente: arXiv
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Main Authors: Boros, Endre, Gurvich, Vladimir, Makino, Kazuhisa
Format: Preprint
Published: 2025
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author Boros, Endre
Gurvich, Vladimir
Makino, Kazuhisa
author_facet Boros, Endre
Gurvich, Vladimir
Makino, Kazuhisa
contents We consider finite $n$-person deterministic graphical games and study the existence of pure stationary Nash-equilibrium in such games. We assume that all infinite plays are equivalent and form a unique outcome, while each terminal position is a separate outcome. It is known that for $n=2$ such a game always has a Nash equilibrium, while that may not be true for $n > 2$. A game is called {\em play-once} if each player controls a unique position and {\em terminal} if any terminal outcome is better than the infinite one for each player. We prove in this paper that play-once games have Nash equilibria. We also show that terminal games have Nash equilibria if they have at most three terminals.
format Preprint
id arxiv_https___arxiv_org_abs_2503_17387
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On Nash Equilibria in Play-Once and Terminal Deterministic Graphical Games
Boros, Endre
Gurvich, Vladimir
Makino, Kazuhisa
Theoretical Economics
Computer Science and Game Theory
We consider finite $n$-person deterministic graphical games and study the existence of pure stationary Nash-equilibrium in such games. We assume that all infinite plays are equivalent and form a unique outcome, while each terminal position is a separate outcome. It is known that for $n=2$ such a game always has a Nash equilibrium, while that may not be true for $n > 2$. A game is called {\em play-once} if each player controls a unique position and {\em terminal} if any terminal outcome is better than the infinite one for each player. We prove in this paper that play-once games have Nash equilibria. We also show that terminal games have Nash equilibria if they have at most three terminals.
title On Nash Equilibria in Play-Once and Terminal Deterministic Graphical Games
topic Theoretical Economics
Computer Science and Game Theory
url https://arxiv.org/abs/2503.17387