Social Structure and Conflict
Kinship and Conflict: Evidence from Segmentary Lineage Societies in Sub-Saharan Africa Jacob Moscona*† M.I.T. Nathan Nunn*‡ Harvard University, NBER and BREAD James A. Robinson*§ University of Chicago, NBER, and BREAD 31 July 2019 Abstract: We test the long-standing hypothesis that ethnic groups that are organized around ‘segmentary lineages’ are more prone to conflict. Ethnographic accounts suggest that in segmentary lineage societies, which are characterized by strong allegiances to distant rel- atives, individuals are obligated to come to the aid of fellow lineage members when they become involved in conflicts. As a consequence, small disagreements often escalate to larger-scale conflicts involving many individuals. We test for this link between segmentary lineage and conflict across 145 African ethnic groups in sub-Saharan Africa. Using a number of estimation strategies, including an RD design at ethnic boundaries, we find that segmentary lineage societies experi- ence more conflicts and particularly ones that are retaliatory, long in duration, and large in scale. Key words: Conflict, Civil Conflict, Social Structure, Segmentary Lineage, Kinship jel classification: D74,O55,Z1. *For helpful feedback and comments, the authors thank Jean Ensminger, James Fenske, Francisco Gallego, Joseph Henrich, Saumitra Jha, Sara Lowes, Beatriz Magaloni, Stelios Michalopoulos, Jake Shapiro, Dean Yang, Pierre Louis- Vezina, Scott Walker, and Max Winkler, as well as seminar participants at U.C. Berkeley, University of British Columbia, University of Connecticut, Brown, Chicago Harris, University of Minnesota, M.I.T, U.C. Irvine, Princeton, Simon Fraser, Stanford, and various conferences. We thank Mohammad Ahmad, Aditi Chitkara, Ariel Gomez, Sherif Mabrouk, Matthew Summers, Adam Xu, and Juan Camilo Yamin for excellent research assistance.
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