Covenants before the swords: The limits of efficient cooperation in heterogenous groups

Christian Koch (), Nikos Nikiforakis () and Charles Noussair

No 20200048, Working Papers from New York University Abu Dhabi, Department of Social Science

Abstract: When agents derive heterogeneous benefits from cooperation, a tension often arises between efficiency and equality that can impede their ability to cooperate efficiently. We design a lab experiment, in which we investigate the efficacy of communication and punishment, separately and jointly, to promote cooperation in such an environment. Our results reveal that communication allows most groups to establish covenants, i.e., agreements about the profile of individual contributions, while the threat of punishment (the ‘sword’) discourages deviations from the covenants. Most covenants, however, reflect a concern for equality. As a result, cooperation levels and earnings fall substantially below the maximum possible. The timing of communication is also critical: covenants reduce the use of sanctions dramatically when communication precedes punishment opportunities but when punishment precedes communication opportunities, a history of sanctioning emerges which reduces the probability that groups establish covenants subsequently. Our findings illustrate not only the benefits of early communication, but also some limits to self-governance in heterogeneous groups. JEL Codes: C92, H41, D74

Pages: 112 pages
Date: 2020-06, Revised 2020-06
New Economics Papers: this item is included in nep-cdm and nep-exp
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