We extract estimation results on the Mincer earnings function from four earlier studies and add new results from a recent dataset. We analyse differences related to differences in earnings concepts, in sampling frame and differences among studies that cannot be explained. Jointly, the studies...

This paper re-examines the wage returns to the 1972 Raising of the School Leaving Age (RoSLA) in England and Wales using a high-quality administrative panel dataset covering the relevant cohorts for almost 40 years of their labour market careers. With best practice regression discontinuity...

In many applications of the differences-in-differences (DID) method, the treatment increases more in the treatment group, but some units are also treated in the control group. In such fuzzy designs, a popular estimator of treatment effects is the DID of the outcome divided by the DID of the...

This paper examines the evolution of the returns to education in Portugal over the 1980s andearly 1990s. The main findings indicate that the returns to education have increased,particularly after joining the European Union in 1986. Since this occurred along with anincrease in the level of...

Contrary to employees, there is no clear evidence that entrepreneurs' education positively effects income. In this study we propose that entrepreneurs can benefit from their education as a signal during the recruitment process of employees. This process is then assumed to follow a matching of...