Rodriguez, Mora; James, Jhon; Muro, Juan - Institut für Weltwirtschaft (IfW) - 2012
In the presence of selection bias, traditional estimators of pseudo panel data are inconsistent. In this paper, the … selection bias. Specifically, they propose a Wald test for the null hypothesis that there is no selection bias. Under rejection …-panel regressions to test for selection bias and estimate the returns to education in Colombia. The authors corroborate the existence of …