This paper analyses the relationship between educational attainment and the impact of professional training labour income and total output. It shows that there is theoretical support for the hypothesis that when there is an increase in the educational attainment of the beneficiaries of the...

This paper emphasizes that although technical progress is crucial for economic growth, its promotion may lead to income concentration in hands of the richest. As it demands public effort to reach its optimal level, because of the existence of several market restraints on the production of new...