A commitment folk theorem
Real world players often increase their payoffs by voluntarily committing to play a fixed strategy, prior to the start of a strategic game. In fact, the players may further benefit from commitments that are conditional on the commitments of others. This paper proposes a model of conditional commitments that unifies earlier models while avoiding circularities that often arise in such models. A commitment folk theorem shows that the potential of voluntary conditional commitments is essentially unlimited. All feasible and individually rational payoffs of a two-person strategic game can be attained at the equilibria of one (universal) commitment game that uses simple commitment devices. The commitments are voluntary in the sense that each player maintains the option of playing the game without commitment, as originally defined.
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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Jackson, Matthew O., 1999.
"A Crash Course in Implementation Theory,"
1076, California Institute of Technology, Division of the Humanities and Social Sciences.
- Chaim Fershtman & Kenneth L Judd, 1984.
"Equilibrium Incentives in Oligopoly,"
642, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Aumann, Robert J., 1974.
"Subjectivity and correlation in randomized strategies,"
Journal of Mathematical Economics,
Elsevier, vol. 1(1), pages 67-96, March.
- AUMANN, Robert J., "undated". "Subjectivity and correlation in randomized strategies," CORE Discussion Papers RP 167, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- R. Aumann, 2010. "Subjectivity and Correlation in Randomized Strategies," Levine's Working Paper Archive 389, David K. Levine.
- Lehrer, Ehud, 1996. "Mediated Talk," International Journal of Game Theory, Springer;Game Theory Society, vol. 25(2), pages 177-88.
- Amparo Urbano & Jose E. Vila, 2002. "Computational Complexity and Communication: Coordination in Two-Player Games," Econometrica, Econometric Society, vol. 70(5), pages 1893-1927, September.
- Klemperer, Paul D & Meyer, Margaret A, 1989. "Supply Function Equilibria in Oligopoly under Uncertainty," Econometrica, Econometric Society, vol. 57(6), pages 1243-1277, November.
- Ehud Kalai & Mark A. Satterthwaite, 1986. "The Kinked Demand Curve," Discussion Papers 677, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Ehud Lehrer & Sylvain Sorin, 1994.
"One-Shot Public Mediated Talk,"
1108, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Fershtman, C. & Kalai, E., 1993.
10-93, Tel Aviv - the Sackler Institute of Economic Studies.
- Nash, John, 1953. "Two-Person Cooperative Games," Econometrica, Econometric Society, vol. 21(1), pages 128-140, April.
- Gossner, Olivier, 1998.
"Secure Protocols or How Communication Generates Correlation,"
Journal of Economic Theory,
Elsevier, vol. 83(1), pages 69-89, November.
- GOSSNER, Olivier, "undated". "Secure protocols or how communication generates correlation," CORE Discussion Papers RP 1361, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- GOSSNER, Olivier, 1997. "Secure protocols or how communication generates correlation," CORE Discussion Papers 1997092, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- repec:dau:papers:123456789/6244 is not listed on IDEAS
- Robert J. Aumann, 2010.
"Correlated Equilibrium as an expression of Bayesian Rationality,"
Levine's Working Paper Archive
661465000000000377, David K. Levine.
- Aumann, Robert J, 1987. "Correlated Equilibrium as an Expression of Bayesian Rationality," Econometrica, Econometric Society, vol. 55(1), pages 1-18, January.
- R. Aumann, 2010. "Correlated Equilibrium as an expression of Bayesian Rationality," Levine's Bibliography 513, UCLA Department of Economics.
- Fershtman, Chaim & Judd, Kenneth L & Kalai, Ehud, 1991.
"Observable Contracts: Strategic Delegation and Cooperation,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(3), pages 551-59, August.
- Chaim Fershtman & Kenneth L. Judd & Ehud Kalai, 1990. "Observable Contracts: Strategic Delegation and Cooperation," Discussion Papers 879, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Larry Epstein & Michael Peters, 1996.
"A Revelation Principle For Competing Mechanisms,"
peters-96-02, University of Toronto, Department of Economics.
- Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
- Kalai, Ehud, 1981. "Preplay negotiations and the prisoner's dilemma," Mathematical Social Sciences, Elsevier, vol. 1(4), pages 375-379, August.
- Tennenholtz, Moshe, 2004. "Program equilibrium," Games and Economic Behavior, Elsevier, vol. 49(2), pages 363-373, November.
- Robert J. Aumann, 1995. "Repeated Games with Incomplete Information," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262011476.
- Ben-Porath, Elchanan, 1998. "Correlation without Mediation: Expanding the Set of Equilibrium Outcomes by "Cheap" Pre-play Procedures," Journal of Economic Theory, Elsevier, vol. 80(1), pages 108-122, May.
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