Progress in educational development in the world since 1900 has been slow and uneven between countries. Providing basic education for all children in developing countries has been and remains an unmet challenge of governments and international organizations alike. This is in sharp contrast to...

This paper summarizes the socioeconomic conditions of children around the world. It explores solutions to the main problems, along with a summary of the costs and benefits of some of the solutions. Emphasis is on the results from rigorous studies, impact evaluations, and randomized experiments....

Little is known about which of the skills that make up workers' human capital contribute to higher earnings. Past empirical evidence suggest that most of the return to schooling is generated by effects or correlates unrelated to the skills measured by the available tests. This paper uses the...

Rates of return to investments in schooling have been estimated since the late 1950s. In the 60-plus year history of such estimates, there have been several attempts to synthesize the empirical results to ascertain patterns. This paper presents comparable estimates, as well as a database, that...