1. Economic growth in a cross-section of Countries;Barro;Quarterly Journal of Economics, vol.106 (May),1991
2. International comparisons of educational attainment;Barro;Journal of Monetary Economics 32, no. 3 (December), p,1993
3. Determinants of the commodity structure of US trade;Baldwin;American Economic Review,1971
4. Human Capital Investment: The Returns from Education and Training to the Individual, the Firm and the Economy,;Bundell;Fiscal Studies,1999
5. 1994 ,The Role of human capital in economic development.;Benhabib;Evidence from aggregate cross-country time, Journal of Monetary Economics 34,1994