Macartan Humphreys (Ph.D., Harvard, 2003) works on the political economy of development and formal political theory. Ongoing research focuses on civil wars, post-conflict development, ethnic politics, natural resource management, political authority and leadership, and democratic development with a current focus on the use of field experiments to study democratic decision-making in post-conflict and developing areas. He has conducted field research in Chad, Ghana, Haiti, Indonesia, Liberia, Mali, Sao Tome and Principe, Sierra Leone, Senegal, Uganda, and elsewhere. Recent work has appeared in the American Political Science Review, World Politics, the Economic Journal, and elsewhere. He has authored or coauthored books on ethnic politics, natural resource management, and game theory and politics. A former Trudeau fellow and scholar of the Harvard Academy, he is a Professor of Political since at Columbia University and served as Executive Director of the Evidence in Governance and Politics research network (EGAP) from 2012 to 2105.