James Traub is a contributing writer for The New York Times Magazine, where he has worked since 1998. From 1994 to 1997, he was a staff writer for The New Yorker. He has also written for The New York Review of Books, Foreign Affairs, The Atlantic Monthly, The New Republic and elsewhere. His articles have been widely reprinted and anthologized. He has written extensively about international affairs and especially the United Nations. In recent years, he has reported from Iran, Iraq, Sierra Leone, East Timor, Vietnam, India, Kosovo and Haiti. He has also written often about national politics and urban affairs, including education, immigration, race, poverty and crime.

Most recently, Traub authored the critically acclaimed book, The Best Intentions: Kofi Annan and the UN in the Era of American World Power. His previous books include, The Devil's Playground: A Century of Pleasure and Profit in Times Square, which was published in 2004, and City On A Hill, a book on open admissions at City College that was published in 1994 and won the Sidney Hillman Award for nonfiction. He is a member of the Council on Foreign Relations.

Edward Miguel received his PhD at Harvard in 2000, the same year he joined UC Berkeley as an assistant professor. He was promoted to associate professor in 2005. He recently received the Kenneth J. Arrow Award for Best Paper in Health Economics for "Worms: Identifying Impacts on Education and Health in the Presence of Treatment Externalities" (with Michael Kremer), which appeared in Econometrica. He also was the recipient of the 2005 Sloan Fellowship. At Berkeley he has received the Best Graduate Adviser Award and the Distinguished Teaching Award.

Professor Miguel is co-editor of the Journal of Human Resources, associate editor of the Journal of Development Economics and Review of Economics and Statistics, director of the U.C. Berkeley Scientific Evaluation for Global Action program, co-organizer for Working Group in African Political Economy, associate director at CIDER, an NBER faculty research associate, a CEPR research fellow, a senior fellow at the Bureau for Research and Economic Analysis of Development, and a research affiliate at the MIT Poverty Action Lab. He also has worked as a consultant for non-governmental organizations on projects in Delhi, Kenya, Tanzania, and Sierra Leone.

Edward Miguel received his PhD at Harvard in 2000, the same year he joined UC Berkeley as an assistant professor. He was promoted to associate professor in 2005. He recently received the Kenneth J. Arrow Award for Best Paper in Health Economics for "Worms: Identifying Impacts on Education and Health in the Presence of Treatment Externalities" (with Michael Kremer), which appeared in Econometrica. He also was the recipient of the 2005 Sloan Fellowship. At Berkeley he has received the Best Graduate Adviser Award and the Distinguished Teaching Award.

Professor Miguel is co-editor of the Journal of Human Resources, associate editor of the Journal of Development Economics and Review of Economics and Statistics, director of the U.C. Berkeley Scientific Evaluation for Global Action program, co-organizer for Working Group in African Political Economy, associate director at CIDER, an NBER faculty research associate, a CEPR research fellow, a senior fellow at the Bureau for Research and Economic Analysis of Development, and a research affiliate at the MIT Poverty Action Lab. He also has worked as a consultant for non-governmental organizations on projects in Delhi, Kenya, Tanzania, and Sierra Leone.

The speaker, Macartan Humphreys, is an assistant professor of political science at Columbia University and a visiting professor at CISAC. He is a research scholar at the Center for Globalization and Sustainable Development at the Earth Institute at Columbia and a member of the Millennium Development goals project poverty task force, where he works on conflict and development issues. Overall his research is on African political economy and formal political theory. His dissertation on the politics of factions developed game theoretic models of conflict and cooperation between internally divided groups. More recent research focuses on rebellions in West Africa, where he has undertaken field research in the Casamance, Mali, and Sierra Leone. Ongoing research now includes experimental work on ethnic politics, econometric work on natural resource conflicts, game theoretic work on ethnic politics and large N survey work of ex-combatants in Sierra Leone. Humphreys' work is motivated by concerns over the linkages between politics, conflict and human development. He received his PhD in government from Harvard in 2003 and his MPhil in economics from Oxford in 2000.

The respondent, David Patel, is a 2006-2007 predoctoral fellow at CDDRL (fall quarter) and CISAC (winter and spring quarters). He is completing a dissertation looking at questions of religious organization and collective action in the Middle East, with a theoretical focus on the relationship of organization and information in particular. Empirically, his study looks at Islamic institutions and their role in political action in a wide range of settings including 7th century garrison cities of the early Islamic empire, through the U.S.-led occupation of Iraq. Patel has spent a great deal of time in the Middle East over the last several years, including extended visits to Yemen, Morocco, Jordan, and Iraq, where he spent seven months in Basra conducting research beginning in the fall of 2003. He works with David Laitin, Jim Fearon, and Avner Greif at Stanford. In fall 2007 he will join the faculty at Cornell University as an assistant professor of political science.

Philip Roessler (speaker) is a postdoctoral fellow at CISAC and in 2007 will be the Andrew Mellon Postdoctoral Fellow in comparative government at the University of Oxford. His PhD dissertation examines the effects of political authority on conflict initiation and escalation in Africa, with a focus on Sudan, where he conducted field research between March 2005 and April 2006. His article, "Donor-Induced Democratization and Privatization of State-Violence in Kenya and Rwanda," was published in Comparative Politics in January 2005 and his article (co-authored with Marc Morjé Howard), "Liberalizing Electoral Outcomes in Competitive Authoritarian Regimes," appeared in the American Journal of Political Science in April 2006. Roessler is a PhD candidate in the department of government and politics at the University of Maryland and he received his BA in political science from Indiana University.

Macartan Humphreys (respondent) is an assistant professor of political science at Columbia University and a visiting professor at CISAC. He is a research scholar at the Center for Globalization and Sustainable Development at the Earth Institute at Columbia and a member of the Millennium Development goals project poverty task force, where he works on conflict and development issues. Overall his research is on African political economy and formal political theory. His dissertation on the politics of factions developed game theoretic models of conflict and cooperation between internally divided groups. More recent research focuses on rebellions in West Africa, where he has undertaken field research in the Casamance, Mali, and Sierra Leone. Ongoing research now includes experimental work on ethnic politics, econometric work on natural resource conflicts, game theoretic work on ethnic politics and large N survey work of ex-combatants in Sierra Leone. Humphreys' work is motivated by concerns over the linkages between politics, conflict and human development. He received his PhD in government from Harvard in 2003 and his MPhil in economics from Oxford in 2000.

Dara Kay Cohen is a PhD candidate in political science at Stanford University and was a fellow and research assistant at CISAC in 2004-2005 and 2005-2006. Her research at CISAC involved studying the politics of national security; she examined the creation of the Department of Homeland Security, how security issues have affected congressional elections and co-wrote a paper with Jacob N. Shapiro on the failure of the homeland security alert system. Her current dissertation research focuses on the use of sexual violence during civil wars, and she spend last summer in Sierra Leone conducting initial field work. She previously worked at the Department of Justice as a paralegal in the Outstanding Scholars Program in the Counterterrorism Section and at the u.S. Embassy in London on terrorist financing issues. She received her a.B. in political science and philosophy with honors from Brown University in 2001.

Mariano-Florentino Cuéllar, with a PhD in political science from Stanford as well as a law degree from Yale, focuses his scholarship on how organizations cope with the legal responsibility for managing complex criminal justice, regulatory, and international security problems. He has published the leading academic paper on the operation of federal money laundering laws, and one of the most exhaustive empirical case studies of public participation in regulatory rulemaking proceedings. Recent projects address the role of criminal enforcement in managing transnational threats, the physical safety of refugee communities in the developing world, legislative and budgetary dynamics affecting the federal Department of Homeland Security, and the impact of bureaucratic structure on how institutions implement legal mandates. Professor Cuéllar is an affiliated faculty member at the Stanford Center for International Security and Cooperation, and a member of the Executive committee for the Stanford International Initiative. Before joining the Stanford Law School faculty in 2001, he served as senior advisor to the u.S. Treasury Department's Undersecretary for Enforcement and clerked for Chief Judge Mary M. Schroeder of the U.S. Court of Appeals for the Ninth Circuit.

Bary R. Weingast is a senior fellow at the Hoover Institution as well as the Ward C. Krebs Family Professor in the Department of Political Science at Stanford University; he served as chair of that department from 1996 to 2001. He is also a professor of economics, by courtesy, at the university. He was a fellow at the Center for Advanced Study in the Behavioral Sciences from 1993 to 1994. Weingast is an expert in political economy and public policy, the political foundation of markets and economic reform, U.S. politics, and regulation. His current research focuses on the political determinants of public policymaking and the political foundations of markets and democracy. Weingast is a fellow of the American Academy of Arts and Sciences. He is the 2006 recipient of the William H. Riker Prize in Political Science. He received the Heinz Eulau Award for Best paper from the American Political Science Review in 1987. With Charles Stewart, he received the Award for Best Paper n Political History b the American Political Science Association in 1994 and again in 1998. He is also the recipient, along with Kenneth Schultz, of the Franklin L. Burdette Award for Best paper Presented at the 1994 Political Science Association Meeting.

Paul Stockton is a senior research scholar at CISAC. He was formerly the associate provost at the Naval Postgraduate School in Monterey, California, and was the former director of its Center for Homeland Defense and Security. His teaching and research focus son how U.S. security institutions respond to changes in the threat (including the rise of terrorism), and the interaction of Congress and the Executive branch in restructuring national security budgets, policies and institutional arrangement.s Stockton joined the faculty of the Naval Postgraduate School in August 1990. From 1995 until 2000, he served as director of NPS's Center for Civil-Military Relations. From 2000-2001, he founded and served as the acting dean of NPS's School of International Graduate Studies. He was appointed associate provost in 2001.

Professor Andrew Mack is the Director of the Human Security Centre at the Liu Institute for Global Issues, University of British Columbia. Prior to establishing the Human Security Centre, he was a Visiting Professor at the Program on Humanitarian Policy at Harvard University (2001) and spent two and a half years as the Director of Strategic Planning in the Executive Office of Secretary-General Kofi Annan at the United Nations (1998-2001).

Professor Mack has held the Chair in International Relations at the Institute of Advanced Study at the Australian National University (1991-1998), was the Director of the ANU's Peace Research Centre (1985-91) and was the ANU's Senior Research Fellow in the Strategic and Defence Studies Centre (1984-85).

He has held research and teaching positions at Flinders University (Adelaide, Australia) the London School of Economics, the Copenhagen Peace Research Institute, the Richardson Institute for Peace and Conflict Research, University of California at Berkeley, Irvine and San Diego, the University of Hawaii, Fudan University in Shanghai and the International University of Japan.

His pre-academic career included six years in the Royal Air Force (engineer and pilot); two and a half years in Antarctica as meteorologist and Deputy Base Commander; a year as a diamond prospector in Sierra Leone and two years with the BBC's World Service producing the current affairs program "The World Today".