On Nash Equilibria for Stochastic Games and Determining the Optimal Strategies of the Players

Authors

  • Dmitrii Lozovanu Academy of Sciences of Moldova
  • Stefan Pickl Universitat der Bundeswehr

Abstract

We consider n -person stochastic games in the sense of Shapley. The main results of the paper
are related to the existence of Nash equilibria and determining the optimal stationary strategies
of the players in the considered games.
We show that a Nash equilibrium for the stochastic game with average payoff functions of the players exists if an arbitrary situation induces an ergodic Markov chain. For the stochastic game with discounted payoff functions we show that a Nash equilibrium always exists. Some approaches for determining Nash equilibria in the considered games are proposed.

Keywords:

Markov decision processes, stochastic games, Nash equilibria, optimal stationary strategies

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References

Dasgupta, P, Maskin, E. (1986). The existence of Equilibrium in Discontinuous Economic Games. Review of Economic Studies, 53, 1–26.

Debreu, G. (1952). A Social Equilibrium Existence Theorem, Proceedings of the National Academy of Aciences, 386–393.

Filar, J. A., Vrieze, K. (1997). Competitive Markov Decision Processes. Springer, 1997.

Gillette, D. (1957). Stochastic games with zero stop probabilities. Contribution to the Theory of Games, vol. III, Princeton, 179–187.

Lal, A. K., Sinha S. (1992). Zero-sum two person semi-Markov games, J. Appl. Prob., 29, 56–72.

Lozovanu, D. (2011). The game-theoretical approach to Markov decision problems and determining Nash equilibria for stochastic positional games. Int. J. Mathematical Modelling and Numerical Optimization, 2(2), 162–164.

Lozovanu, D., Pickl, S. (2014). Nash equilibria conditions for stochastic positional games. Contribution to Game Theory and Management, VII, Saint. Petersburg State University, 10, 201–213.

Lozovanu, D., Pickl, S. (2015). Optimization of Stochastic Discrete Systems and Control on Complex Networks. Springer.

Mertens, J. F., Neyman, A. (1981) Stochastic games. International Journal of Game Theory, 10, 53–66.

Neyman, A., Sorin, S. (2003). Stochastic games and applications. NATO ASI series, Kluver Academic press.

Owen, G. (1982). Game Theory, 2nd edition, Academic Press, New York.

Puterman, M. (2005). Markov Decision Processes:Stochastic Dynamic Programming. John Wiley, New Jersey.

Reny, F. (1999). On the existence of Pure and Mixed Strategy Nash Equilibria In Discontinuous Games. Economertrica, 67, 1029–1056.

Shapley, L. (1953). Stochastic games. Proc. Natl. Acad. Sci. U.S.A., 39, 1095–1100.

Simon, L. (1987). Games with Discontinuous Payoffs. Review of Economic Studies, 54, 569–597.

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Published

2022-05-24

How to Cite

Lozovanu, D., & Pickl, . S. (2022). On Nash Equilibria for Stochastic Games and Determining the Optimal Strategies of the Players. Contributions to Game Theory and Management, 8. Retrieved from https://gametheory.spbu.ru/article/view/13458

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