1. Career Interruptions and Subsequent Earnings: A Reexamination Using Swedish Data
2. Asplund, Rita, y Pedro Telhado Pereira (1999). Returns to Human Capital in Europe. A Literature Review, [En línea] The Research Institute of the Finnish Economy, Helsinki, 368p. [Consultado el 2 de diciembre de 2013].
3. Brechas salariales: discriminación o diferencias de productividad.;Atucha,2003
4. Domestic Labour and Income Inequality
5. Human capital effort, and the sexual division of labour.;Becker,1985