Economic sanctions, increasingly used as instruments of foreign policy in recent decades, have been the focus of numerous academic studies. Recent theoretical advances in our understanding of sanctions cannot be tested adequately with existing data. This article presents a newly developed...

This study develops a game theoretic model to explain why the U.S. continues to supply military aid to ght transnational terrorist groups, given its poor empirical record. The model demonstrates that since U.S. military aid is contingent on ghting terrorists, and U.S. aid is likely to cease once...