Mutual choice of partner and communication in a repeated prisoner's dilemma
Peer reviewed, Journal article
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- Department of Economics 
Original versionJournal of Behavioral and Experimental Economics. 2018, 75, 12-23 https://doi.org/10.1016/j.socec.2018.05.002
Many markets resemble repeated prisoner's dilemma situations with the possibilities for mutual partner choice. In this paper, we show experimentally that partner choice by mutual consent has a strong positive effect on cooperation. Mutual partner choice makes it possible to form long-lasting reciprocal partnerships. To understand partnership formation we also add a treatment where the participants could communicate with each other in a common chat room. Chat transcript reveals that promises are important in forming and sustaining a partnership.