Aaditya Mattoo is Lead Economist in the Development Research Group of the World Bank. Prior to joining the Bank in 1999, Mr. Mattoo was Economic Counsellor at the Trade in Services Division, World Trade Organization (WTO), Geneva. He also served as Economic Affairs Officer in the Economic Research and Analysis and Trade Policy Review Divisions of the WTO. Mr. Mattoo has lectured in economics at the University of Sussex and was lector at Churchill College, Cambridge University. Robert M. Stern is Professor of Economics and Public Policy (Emeritus) in the Department of Economics and Geral...