Jeff Hammer is the Charles and Marie Robertson Visiting Professor of Economic Development in the Woodrow Wilson School at Princeton University where he teaches economic development and the economics of health policy in poor countries. Prior to this, he worked for 25 years at the World Bank where he concentrated on various issues related to public economics, public expenditures and the social sectors, particularly health. His current research is on the quality of medical care in India, absenteeism of teachers and health workers, the determinants of health status and improving service delivery through better accountability mechanisms. His B.A. from Swarthmore College and Ph.D. from MIT are both in Economics.