Data

ETHNIC POWER RELATIONS

Access to State Power of Politically Relevant Ethnic Groups, 1946-2005

The Ethnic Power Relations (EPR) data set identifies all politically relevant ethnic groups and their access to state power in every country of the world from 1946 to 2005. It includes annual data on 733 groups and codes the degree to which their representatives hold executive-level state power — from total control of the government to overt political discrimination.

For most of these groups, geographic settlement areas have been identified in a geo-coded version of the dataset (GeoEPR). Both datasets were produced in collaboration with researchers from the ETH Zürich.

• Access data through the Ethnic Power Relations website
• Coding rules for the EPR dataset are available in this online appendix to Wimmer, Cederman, Min. Download
• Coding rules and a description of the GeoEPR dataset are available in Wucherpfennig, Weidmann, Girardin, Cederman, and Wimmer. “Politically relevant ethnic groups across space and time: Introducing the GeoEPR dataset ", in Conflict Management and Peace Science 10(10):1-15, 2011.  Download

ETHNIC ARMED CONFLICT  

Minor and Major Ethnic Armed Conflicts, 1946-2005

A recoding of the PRIO/Uppsala Armed Conflicts Data Set to identify ethnic and secessionist conflicts. The Ethnic Armed Conflict dataset is compatible with the EPR dataset. It was produced in collaboration with researchers from the ETH Zürich.

Access the EAC data through the Ethnic Power Relations website.

FROM EMPIRE TO NATION-STATE (REPLICATION DATA)  

Territorial Data, 1816-2001

Takes fixed geographical territories instead of countries as units of analysis, enabling the tracing of a territory’s political and economic development before and after independence from 1816 to 2001.

 Stata  |   Excel  |   Codebook  |  Variable list

This is the replication dataset for Wimmer and Min. “From empire to nation-state: Explaining war in the modern world, 1816-2001”, American Sociological Review 71(6):867-897, 2006. Download

WARS BY LOCATION AND PURPOSE  

1816-2001

Identifies the location and purpose of all 464 major wars since 1816, expanding substantially on previous efforts by including wars fought in all polities, including pre-independent kingdoms and empires. The data complements standard war datasets that characterize wars only by the state participants that fight them. Compatible with the From Empire to Nation-state dataset.

 Excel

The dataset and coding rules are described in Wimmer and Min. “The location and purpose of wars around the world, 1816-2001", in International Interactions 35(4):390-417, 2009.  Download

FACEBOOK NETWORKS
Tastes, Ties, and Time

Contains information on different types of social networks of a cohort of ca. 1600 students, their ethno-racial, regional and socio-economic background, cultural tastes, academic orientations and so forth. The Facebook Networks data set was produced in collaboration with researchers from Harvard University. The dataset is currently being modified to guarantee anonymity of students.

• Access data from Facebook Networks dataverse (available soon).
• The dataset and coding rules are described in Lewis, Kaufman, Gonzalez, Wimmer, and Christakis, “Tastes, ties, and time: a new social network dataset using Facebook.com”, in Social Networks 30(4):330-342, 2008.  Download
• The dataset is analyzed in Wimmer and Lewis. "Beyond and below race. ERG models of a friendship network documented on Facebook", in American Journal of Sociology 116(2)583-642, 2010. Download