Little is known about the payoffs to apprenticeship training in the German speaking countries for the participants. There is a lot of heterogeneity in the types of apprenticeships offered, and there might be an important element of selection in who obtains an apprenticeship, and what type. To...

This essay reviews progress in empirical economics since Leamer's (1983) critique. Leamer highlighted the benefits of sensitivity analysis, a procedure in which researchers show how their results change with changes in specification or functional form. Sensitivity analysis has had a salutary but...