Affiliation: | 1. Poverty and Equity Global Practice, The World Bank Group, 1850 I St NW, Room 6-254, Washington, DC 20006, United States;2. Research Department, Inter-American Development Bank, 1300 New York Avenue, NW, Washington, DC 20577, United States;1. Department of Economics, Amherst College, 306B Converse Hall, Amherst, MA 01002, USAn;2. School of Economics, Georgia Institute of Technology, Atlanta, GA 30332-0615, USA |