Senior Program Special & Deputy to Director, Division of Studies for Development, United Nations Educational, Scientific and Cultural Organization. Senior Economist, Department of Finance, Government of Canada, 1978. Special Advisor, Ministry of State for Urban Affairs, Canada, 1972-1977.
Professor of Economic, University of Ottawa, 1972-1977. Associate Proofessor of Economic, University of Sherbrooke, Canada, 1968-1972. Economic Consultant, Representative of Korea, 1968-1972.