Access to State Power of Politically Relevant Ethnic Groups, 1946-2010


Version 3.0 of the Ethnic Power Relations dataset (EPR3) identifies all politically relevant ethnic groups and their access to state power in every country of the world from 1946 to 2010. It includes annual data for 157 counries and 758 groups and codes the degree to which their representatives held executive-level state power—from total control of the government to overt political discrimination. Version 3 also includes a new coding of type of ethnic marker distinguishing group members (religion, language, race, etc.).


Version 1.0 was produced by researchers at the ETH Zürich and UCLA (click here for EPR 1). Version 3 extends to 2010 and improved the previous coding of much of Latin America, Central Asia, Eastern Europe, and many other countries. It was produced by a team of researchers at UCLA.


This site provides access to the EPR 3 dataset in both country-year and group-country-year format. You can also access information on coding rules and download some of the first research articles that drew upon EPR.


The EPR dataset is linked to the Ethnic Armed Conflict dataset that can also be downloaded here. It is based on the armed conflict dataset established by Uppsala/PRIO and additionally codes whether conflicts were ethnic and/or secessionist.


The EPR 3 dataset is also available in a fully geo-coded version (GeoEPR 3).


Please cite the following article when making reference to EPR: Andreas Wimmer, Lars-Erik Cederman and Brian Min. "Ethnic politics and armed conflict. A configurational analysis of a new global dataset", in American Sociological Review 74(2):316-337, 2009. To cite the ethnic marker coding (available in the Excel file), please refer to Wimmer, Andreas. 2015. "Race-centrism. A critique and a research agenda", in Ethnic and Racial Studies 38, in print.


Version note: 3.0 was last updated on Dec 31, 2014.