Psacharopoulos, George; Ng, Ying Chu - Economics Research, World Bank Group - 1992
education, and to assess how these differentials changed in the 1980s. Introducing the cost of education allows them to estimate … private and social rates of return on investments on education across several dimensions: by gender, by level of education, by …, the earnings premium received by graduates of higher education decreased in the 1980s. Investment in primary education …