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| Tetsuo Yamamori and Satoru Takahashi |
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| ''The pure Nash equilibrium property and the quasi-acyclic condition'' |
| ( 2002, Vol. 3 No.22 ) |
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| This paper presents a sufficient condition for the quasi-acyclic condition. A game is quasi-acyclic if from any strategy profile, there exists a finite sequence of strict best replies that ends in a pure strategy Nash equilibrium. The best-reply dynamics must converge to a pure strategy Nash equilibrium in any quasi-acyclic game. A game has the pure Nash equilibrium property (PNEP) if there is a pure strategy Nash equilibrium in any game constructed by restricting the set of strategies to a subset of the set of strategies in the original game. Any finite, ordinal potential game and any finite, supermodular game have the PNEP. We show that any finite, two-player game with the PNEP is quasi-acyclic. |
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| Keywords: best-reply dynamics |
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| Manuscript Received : Sep 16 2002 | | Manuscript Accepted : Oct 01 2002 |
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