Evolution of preferences in one-shot prisoner’s dilemma
- 한국계량경제학회
- JOURNAL OF ECONOMIC THEORY AND ECONOMETRICS
- Vol.18 No.4
-
2007.121 - 29 (29 pages)
- 12
Can cooperation evolve in one-shot prisoner’s dilemma? Utilizing an indirect evolutionary framework that separates objective payoffs and utilities, I show that preferences that are consistent with conditional cooperation in one-shot prisoner’s dilemma can evolve along with strictly self-interested preferences. The ability to detect others’ preference types is critical for the evolution of reciprocal preferences. In the evolutionary equilibria, both the strictly self-interested preferences and reciprocal preferences coexist and both cooperation and defection are observed. These results complement the folk theorem and the standard evolutionary models by providing an alternative evolutionary logic of cooperation.
Abstract
1. Introduction
2. What if the prisoner’s dilemma is not indefinitely repeated?
3. Egoists, reciprocators, and altruists
4. The evolutionary setting
5. Stage game equilibria of one-shot, sequential prisoner’s dilemma games and payoffs to different preference types
6. Evolution of preferences under complete and incomplete information
7. Stability of population with heterogeneous preferences
8. Discussion
Appendix
Acknowledgments
References
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