Able but Unwilling to Enforce: Cooperative Dilemmas in Group Lending
Nicholas Sabin and Felix Reed-Tsochas, "Able but Unwilling to Enforce: Cooperative Dilemmas in Group Lending," American Journal of Sociology 125, no. 6 (May 2020): 1602-1667.
88 Pages Posted: 20 Apr 2020 Last revised: 18 Jun 2020
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Able but Unwilling to Enforce: Cooperative Dilemmas in Group Lending
Able but Unwilling to Enforce: Cooperative Dilemmas in Group Lending
Date Written: February 27, 2020
Abstract
It is known that greater social cohesion increases a group’s ability to enforce cooperation. Despite this, defectors often go unpunished and groups with social structures that are a priori favorable often fail. A critical distinction is required between the structural effect on ability versus willingness to punish. We develop a theoretical framework in which variation in a group’s social structure generates a tension between ability and willingness to enforce cooperation. Structures that promote ability to punish also often reduce interest in carrying out sanctions, thus changing collective outcomes. Our empirical analysis involves a well-defined cooperative dilemma: group lending in Sierra Leone. We complement statistical modelling, based on a dataset containing 5,487 group repayments, with ethnographic analysis. We find: (1) Structural cohesion only increases economic cooperation between borrowers to a point, beyond which unwillingness outweighs increased ability to punish, reducing group repayments. (2) Groups with disconnected subgroups perform worse on average. Although borrowers are more willing to punish defectors in the out-subgroup, they are unable to do so effectively.
Keywords: Cooperation, enforcement, punishment, social sanctions, social embeddedness, social networks
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