1. Human capital and the personal distribution of income;Becker,1967
2. Human capital;Becker,1975
3. A treatise on the family;Becker,1981
4. Sibling deviation estimates, measurement error and biases in the returns to schooling;Behrman,1984
5. Schooling and other human capital investments: Can the effects be identified?;Behrman;Economics and Education Review,1987