1. Human capital: a theoretical and empirical analysis with special reference to education;Becker,1964
2. Acemoglu D, Autor D. The basic theory of human capital. In: Lectures in labor economics. 2011. p. 1-34. Available at: https://economics.mit.edu/files/4689
3. Human capital measurement in OECD countries and its relation to GDP growth and innovation;Giménez;Rev Econ Mund.,2015
4. Santín D, Balart P, Cabrales A, et al. Reflexiones sobre el sistema educativo español. Madrid: Centro de Estudios Ramón Areces; 2015. Available at: http://www.sociedadyeducacion.org/site/wp-content/uploads/Reflexiones-sobre-elsistema-%0Deducativo-espanol.pdf
5. Overeducation and instructional quality: a theoretical model and some facts;Ordine;J Hum Cap.,2009