 He worked as a consultant to the International Labour Organization, United Nations Conference on Trade and Development, United Nations Industrial Development Organization, the Indian Planning Commission, the World Bank, the Organisation for Economic Co-operation and Development, and the Planning Ministries of Sri Lanka and South Korea.He served as Economic Advisor to the World Bank from 1983 to 1984, and as Research Administrator from 1984 to 1987.From 1994 to 1997, he was co-director of the Trade Policy Unit at the Center for Policy Studies.