Phase Diagram of Prisoner's Dilemma: Empirical Evidence from the Human Subjects Experiments

Posted: 31 May 2009 Last revised: 2 Jun 2009

See all articles by Bin Xu

Bin Xu

School of Economics, Zhejiang Gongshang University

Qiqi Cheng

Zhejiang University; Zhejiang University

Zhijian Wang

Zhejiang University - Experimental Social Science Laboratory

Date Written: May 30, 2009

Abstract

This paper presents the empirical phase diagram showing the cooperation phase, the mixed phase and the defection phase of prisoner’s dilemma experiment. The empirical data includes 21 experiments using a total of 350 human subjects. Experimental parameters are the possibility of continuation within [0, 1], the sizes of population within [12, 24], and a prisoner's dilemma payoff matrix (S, R, T, P) = (-2, 2, 4, 0). Twenty-one different combinations of these parameters were used in the experiments. The results provide the first empirical instance for Folk Theorem.

Keywords: phase diagram, repeated prisoner’s dilemma, fixed and random matching model, experimental economics

JEL Classification: C72, C73, C91, C92

Suggested Citation

Xu, Bin and Cheng, Qiqi and Cheng, Qiqi and Wang, Zhijian, Phase Diagram of Prisoner's Dilemma: Empirical Evidence from the Human Subjects Experiments (May 30, 2009). Available at SSRN: https://ssrn.com/abstract=1412086 or http://dx.doi.org/10.2139/ssrn.1412086

Bin Xu (Contact Author)

School of Economics, Zhejiang Gongshang University ( email )

18 Xuezheng Street, Hangzhou
Hangzhou, Zhejiang 310018
China
15888897050 (Phone)

Qiqi Cheng

Zhejiang University ( email )

38 Zheda Road
Hangzhou, Zhejiang 310027
China

Zhejiang University ( email )

38 Zheda Road
Hangzhou, Zhejiang 310027
China

Zhijian Wang

Zhejiang University - Experimental Social Science Laboratory ( email )

38 Zheda Road
312, Dongsan, Zijingang
Hangzhou 310027, Zhejiang 310058
China

HOME PAGE: http://socexp.zju.edu.cn

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