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War and Relatedness

  • Enrico Spolaore
  • Romain Wacziarg

We develop a theory of interstate conflict in which the degree of genealogical relatedness between populations has a positive effect on their conflict propensities because more closely related populations, on average, tend to interact more and develop more disputes over sets of common issues. We examine the empirical relationship between the occurrence of interstate conflicts and the degree of relatedness between countries, showing that populations that are genetically closer are more prone to go to war with each other, even after controlling for a wide set of measures of geographic distance and other factors that affect conflict, including measures of trade and democracy.

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File URL: http://www.cesifo-group.de/portal/page/portal/DocBase_Content/WP/WP-CESifo_Working_Papers/wp-cesifo-2009/wp-cesifo-2009-06/cesifo1_wp2696.pdf
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Paper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 2696.

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Date of creation: 2009
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Handle: RePEc:ces:ceswps:_2696
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  35. Klaus Desmet & Michel Le Breton & Ignacio Ortuno-Ortin & Shlomo Weber, 2009. "The Stability and Breakup of Nations: A Quantitative Analysis," Vives discussion paper series 10, Katholieke Universiteit Leuven, Faculteit Economie en Bedrijfswetenschappen, Vives.
  36. Garfinkel, Michelle R. & Skaperdas, Stergios, 2007. "Economics of Conflict: An Overview," Handbook of Defense Economics, Elsevier.
  37. Enrico Spolaore, 2004. "Economic Integration, International Conflict and Political Unions," Rivista di Politica Economica, SIPI Spa, vol. 94(5), pages 3-50, September.
  38. Alesina, Alberto & Spolaore, Enrico, 1997. "On the Number and Size of Nations," The Quarterly Journal of Economics, MIT Press, vol. 112(4), pages 1027-56, November.
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