TY - RPRT AU - Gächter, Simon AU - Starmer, Chris AU - Tufano, Fabio TI - Revealing the Economic Consequences of Group Cohesion PY - 2017/Jun/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 10824 UR - https://www.iza.org/publications/dp10824 AB - We introduce the concept of "group cohesion" to capture the economic consequences of ubiquitous social relationships in group production. We measure group cohesion, adapting the "oneness scale" from psychology. A comprehensive program of new experiments reveals the considerable economic impact of cohesion: higher cohesion groups are significantly more likely to achieve Pareto-superior outcomes in classic weak-link coordination games. We show that effects of cohesion are economically large, robust, and portable. We identify social preferences as a primary mechanism explaining the effects of cohesion. Our results provide proof of concept for group cohesion as a productive new tool of economic research. KW - weak-link game KW - coordination KW - oneness KW - group cohesion KW - social relationships KW - experiments KW - real groups ER -