War and Relatedness

48 Pages Posted: 20 Jun 2009 Last revised: 14 Jul 2009

See all articles by Enrico Spolaore

Enrico Spolaore

Tufts University - Department of Economics

Romain T. Wacziarg

UCLA Anderson School of Management; National Bureau of Economic Research (NBER)

Multiple version iconThere are 3 versions of this paper

Date Written: June 2009

Abstract

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.

Suggested Citation

Spolaore, Enrico and Wacziarg, Romain T., War and Relatedness (June 2009). NBER Working Paper No. w15095. Available at SSRN: https://ssrn.com/abstract=1422973

Enrico Spolaore

Tufts University - Department of Economics ( email )

Medford, MA 02155
United States

Romain T. Wacziarg (Contact Author)

UCLA Anderson School of Management ( email )

110 Westwood Plaza
Los Angeles, CA 90095-1481
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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