'An important new book explaining how states bargain to change institutions by using exit. With comprehensive analysis and fascinating cases, the authors explore every aspect of the complex negotiations, offering a model of rigorous social science research. This insightful study on exit strategies provides a valuable new perspective on theories of international cooperation.' Christina L. Davis, Edwin O. Reischauer Professor of Japanese Politics, Harvard University 'Exit from International Organizations valuably shows that dissatisfaction with institutional performance is often associated with state withdrawal; that fewer than 10% of threats to withdraw are carried out; that there is no long-term trend in withdrawal incidence; and that withdrawal has greater effects on reputations than on material consequences. Students of international organizations can learn a lot from this careful study.' Robert O. Keohane, Professor of International Affairs, Princeton University 'Despite widespread interest in international organizations, very little systematic research has been conducted on why states sometimes exit such organizations and the consequences of withdrawal. This impressive study sheds new light on these important issues.' Edward D. Mansfield, Hum Rosen Professor of Political Science, University of Pennsylvania 'If the reasons a country joins an International Organizations might be intuitively clear, explaining why it might leave, be expelled or sanctioned is not and has remained so because such steps are complex and relatively rare. Patterns and insights emerge, however, when the entire universe of IO exit cases, transpiring over more than a century across 534 international organizations, are painstakingly assembled. von Borzyskowski and Vabulas have curated, analyzed, and interpreted this important dataset for the rest of us, in the process breaking new ground in IO theory and practice while creating a public good that will be used and updated for years to come.' Michael Woolcock, Lead Social Scientist, Development Research Group, World Bank and Adjunct Lecturer of Public Policy, Harvard University