Much of his research has focused on development in Latin America and democratic transition. He is currently working with the Social Science Research Council and has taught courses on Political Analysis, Comparative Politics, and Labor in the Global Economy. Ph.D. University of Chicago, 1990. His research focuses on conservation and development in Mexico. Currently works at the Princeton Environmental Institute.
Fields of research are contract theory and development economics.
Main interest is the structure and performance of institutions. Teaches courses on economics of the environment and on sustainable development. 1999-2000 will be his fourth year at Columbia. Ph.D. Columbia University. Special research interests are Poverty, Development Economics, Government Ethics, and Governance.