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2017 | OriginalPaper | Chapter

The Asymptotic Value in Finite Stochastic Games

Author : Miquel Oliu-Barton

Published in: Extended Abstracts Summer 2015

Publisher: Springer International Publishing

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Abstract

In 1976, Bewley and Kohlberg proved that the discounted values v λ of finite zero-sum stochastic games have a limit, as λ tends to 0, using the Tarski–Seidenberg elimination theorem from real algebraic geometry. This was a fundamental step in the development of the theory of stochastic games. The current paper provides a new and direct proof for this result, relying on the explicit description of asymptotically optimal strategies. Both approaches can be used to obtain the existence of the uniform value using the construction from Mertens and Neyman (1981).

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Footnotes
1
Theorem 1 is stated in this form in [4].
 
2
\(\Phi \) is the Shapley operator, defined in (1).
 
Literature
1.
go back to reference T. Bewley and E. Kohlberg, “The asymptotic theory of stochastic games”, Mathematics of Operation Research 1 (1976), 197–208. T. Bewley and E. Kohlberg, “The asymptotic theory of stochastic games”, Mathematics of Operation Research 1 (1976), 197–208.
2.
go back to reference J. Bolte, S. Gaubert, and G. Vigeral, “Definable zero-sum stochastic games”, Math. Oper. Res. 40 (1) (2015), 171–191. J. Bolte, S. Gaubert, and G. Vigeral, “Definable zero-sum stochastic games”, Math. Oper. Res. 40 (1) (2015), 171–191.
3.
go back to reference J.F. Mertens and A. Neyman, “Stochastic games”, International Journal of Game Theory 10 (1981), 53–66. J.F. Mertens and A. Neyman, “Stochastic games”, International Journal of Game Theory 10 (1981), 53–66.
4.
go back to reference J.F. Mertens, A. Neyman, and D. Rosenberg, “Absorbing games with compact action spaces”, Mathematics of Operation Research 34 (2009), 257–262. J.F. Mertens, A. Neyman, and D. Rosenberg, “Absorbing games with compact action spaces”, Mathematics of Operation Research 34 (2009), 257–262.
5.
go back to reference L.S. Shapley, “Stochastic games”, Proc. Nat. Acad. Sci. 39 (1953), 1095–1100. L.S. Shapley, “Stochastic games”, Proc. Nat. Acad. Sci. 39 (1953), 1095–1100.
6.
go back to reference E. Solan and N. Vieille, “Computing uniformly optimal strategies in two-player stochastic games”, Econ. Theory 42 (2010), 237–253. E. Solan and N. Vieille, “Computing uniformly optimal strategies in two-player stochastic games”, Econ. Theory 42 (2010), 237–253.
7.
go back to reference G. Vigeral, “A zero-sum stochastic game with compact action sets and no asymptotic value”, Dynamic Games and Applications 3 (2) (2013), 172–186. G. Vigeral, “A zero-sum stochastic game with compact action sets and no asymptotic value”, Dynamic Games and Applications 3 (2) (2013), 172–186.
8.
go back to reference B. Ziliotto, “Zero-sum repeated games: counterexamples to the existence of the asymptotic value and the conjecture \(\mathop{\mathrm{maxmin}}\nolimits =\mathop{ \mathrm{lim}}\nolimits v_{n}\)”, Ann. Probab. 44 (2) (2016), 1107–1133. B. Ziliotto, “Zero-sum repeated games: counterexamples to the existence of the asymptotic value and the conjecture \(\mathop{\mathrm{maxmin}}\nolimits =\mathop{ \mathrm{lim}}\nolimits v_{n}\)”, Ann. Probab. 44 (2) (2016), 1107–1133.
Metadata
Title
The Asymptotic Value in Finite Stochastic Games
Author
Miquel Oliu-Barton
Copyright Year
2017
DOI
https://doi.org/10.1007/978-3-319-51753-7_14

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