1. A social welfare view of the measurement of income inequality;Aigner;Review of Income and Wealth,1967
2. On the determinants of income inequality;Aigner;American Economic Review,1967
3. State differentials in income concentration;Al-Samarrie;American Economic Review,1967
4. Human capital;Becker,1964
5. Human capital and the personal distribution of income: An analytical approach;Becker,1966