Arthur A. Stein is Distinguished Professor of Political Science at UCLA. He has an A.B. from Cornell University and a Ph.D. from Yale University. He has written widely on international economic and strategic affairs and is the author of The Nation at War and Why Nations Cooperate, co-editor of The Domestic Bases of Grand Strategy and of No More States?: Globalization, National Self-Determination, and Terrorism, and of a special issue of Ethnic and Racial Studies on Affect, Interest, and Political Entrepreneurs in Ethnic and Religious Conflicts, and author and co-author of almost four dozen articles and book chapters. He has served on the Policy Planning Staff of the US Department of State and consulted for US defense and intelligence agencies. He has also been a Guest Scholar at the Brookings Institution, a Senior Fellow of the University of California's Institute on Global Conflict and Cooperation (IGCC), and an International Affairs Fellow of the Council on Foreign Relations. He was a co-editor of the American Political Science Review, is currently on the editorial board of Global Summitry and has served on the editorial boards of the American Journal of Political Science, International Interactions, and International Organization. He has worked extensively on the strategic bases of international cooperation and conflict, on the construction of international regimes and institutions, and on the relationship between domestic and international politics.