1. The structure of protection in developing countries;Balassa,1971
2. Human capital and the personal distribution of income;Becker,1967
3. The production of human capital and the life cycle of earnings;Ben Porath;Journal of Political Economy,1967
4. Welfare-theoretical analysis of the brain drain;Bhagwati;Journal of Development Economics,1975
5. An analysis of transformations;Box;Journal of the Royal Statistical Society,1964