American Political Science Association
European Political Science Association
Eurasian Peace Science Network
International Political Science Association
International Studies Association
Network for European Peace Scientists
Peace Science Society (International)
Society for Political Methodology
These data sets either employ Correlates of War country codes, derive from, or build upon, core COW datasets (e.g. alliance, militarized dispute, war, state membership data) and are largely compatible with COW coding rules and other COW data sets.
The Alliance Treaty Obligation and Provisions (ATOP) Project
CShapes: (historical maps of state/capital boundaries)
International Crisis Behavior (ICB) Data Archive
The Issue Correlates of War (ICOW)
The Computational Event Data System (follow-on to the KEDS System)
Tatu Vanhanen’s Polyarchy Data Archive
Peace Data (update of Goertz, Diehl, and Balas’ Peace and Rivalry data)
Other Major Data Projects
These represent a selection of the major resources and data sets frequently used by scholars in quantitative international relations. These links represent not simply replication data sets, but time-series-cross-sectional datasets on core variables.
Uppsala Conflict Data Program, UCDP Program overview,
Stockholm International Peace Research (SIPRI) databases
Organization of Economic Cooperation and Development (OECD) data
United Nations Statistics Division
International Monetary Fund (IMF) data
Kristian Skrede Gleditsch and Michael Ward’s Interstate System data
Kristian Skrede Gleditsch’s Expanded Trade data
Kristian Skrede Gleditsch’s Minimum Distance data
Kristian Skrede Gleditsch’s Expanded War data
The Logic of Political Survival data source
Correlates of War Book Series from CQ Press
This book series is a result of a collaboration between the COW Project and CQ Press.
International Military Alliances: 1648-2008. (2008). Douglas M. Gibler.
Resort to War: 1816-2007. (2010). Meredith Reid Sarkees and Frank Whelon Wayman.
Handbook of International Rivalries. (2011). William R. Thompson and David Dreyer.
A Guide to Intra-state Wars: An Examination of Civil, Regional, and Intercommunal Wars, 1816-2014. (2016). Jeffrey S. Dixon and Meredith Reid Sarkees.
These documents contain particularly helpful discussions or information about data sets in international relations.