1. Tata Centre for Development, University of Chicago, Chicago, IL
2. Center for Disease Dynamics, Economics, and Policy, Washington, DC
3. Departments of Economics, Sociology, and Population Studies Center, University of Pennsylvania, Philadelphia, PA
4. Departments of Sociology, and Population Studies Center, University of Pennsylvania, Philadelphia, PA
5. Departments of Population Studies Center, University of Pennsylvania, Philadelphia, PA
6. London School of Hygiene and Tropical Medicine, London, United Kingdom
7. Center for Disease Dynamics, Economics, and Policy, New Delhi, India
8. Princeton Environmental Institute, Princeton University, Princeton, NJ