Reciprocity with Uncertainty About Others

时间:2021-09-10浏览:10设置


ShanghaiTech SEM Working Paper No. 2021-009


 Jin-yeong Sohn

IAER, Dongbei University of Finance and Economics

Wenhao Wu

ShanghaiTech University


We introduce the uncertainty of psychological motivation into a reciprocity model and explore its implications on behavior. We extend the Sequential Reciprocity Equilibrium in extensive-form games (Dufwenberg and Kirchsteiger, 2004) to a broader class of incomplete information games. We use this general framework to study many well-known games. We investigate how uncertainty changes the equilibrium predictions of the standard reciprocity model and compare two setups in which the psychological motivations are known and unknown among the players, respectively. We find that, in the prisoners' dilemma, players are more likely to cooperate with each other when they have information about the reciprocal motivations of their opponents, given that the benefits of defection are modest.


Date Written: Septmeber, 2021

Available at SSRN: https://ssrn.com/abstract=3926177

Download this paper: 【No. 2021-009】Reciprocity with Uncertainty About Others.pdf














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