This article analyzes the sources of bank efficiency in Colombia over the period 2000–2011. To perform this research, the authors propose a score of bank efficiency using the directional distance function, which was estimated using data envelopment analysis. Additionally, they use an ordered...

The authours use information gathered from 122 studies on the effects of high school diplomas on wages in different countries worldwide to carry out a meta-analysis that shows high school diplomas have a statistically significant effect on wages of nearly 8%. This effect varies whether the...

In the presence of selection bias, traditional estimators of pseudo panel data are inconsistent. In this paper, the authors derive the conditions under which consistence is achieved in pseudo-panel estimation and propose a simple test of selection bias. Specifically, they propose a Wald test for...

This paper analyzes over-education in Colombia, using the data of individuals and companies, compiled by the National Apprenticeship Service (SENA) in 2006. It finds that there is a 14% likelihood of being over-educated and that this depends on the mobility between different areas of...