Why do international organizations (IOs) look so different, yet so similar? The possibilities
are diverse. Some international organizations have just a few member states, while others …

This article summarizes the Correlates of War Intergovernmental Organizations (IGO)
Version 3.0 datasets. The new datasets include information about the population of IGOs in …

Under what conditions do states withdraw from intergovernmental organizations (IGOs)?
Recent events such as Brexit, the US withdrawal from UNESCO, and US threats to withdraw …

Rising powers often seek to reshape the world order, triggering confrontations with those
who seek to defend the status quo. In recent years, as international institutions have grown …

The goal of the Center is to demonstrate the power of private institutions, both for-profit and
non-profit, to create a good society and to foster the understanding that free choice of a fully …

International relations research has regarded networks as a particular mode of organization,
distinguished from markets or state hierarchies. In contrast, network analysis permits the …

It is widely accepted that democracies are less conflict prone, if only with other democracies.
Debate persists, however, about the causes underlying liberal peace. This article offers a …

The renaissance in the theoretical analysis of intergovernmental organizations (IGOs) has
focused on formal IGOs (FIGOs), but many IGOs are subject to no formal treaty and/or have …

Under what conditions do international governmental organizations (IGOs) cease to exist?
Surprisingly, leading theories of international organization rarely address this question …

Previous studies provide strong evidence for the Kantian theory of peace, but a satisfactory
evaluation requires establishing the causal influence of the variables. Here we focus on the …