The paper investigates determinants of formal and non-formal continuous vocational training and its income effects among German selfemployed and employed workers in 1991/92. Participation in continuous formal training is more frequently observed with employed workers, whereas self-employed are...

Empirical investigations with enterprise level data from official statistics often use the average wage as a proxy variable for the qualification of the workforce, mostly due to the lack of detailed information on the qualification of the employees. This paper uses unique newly available data...

We investigate the observable determinants of sorting between salary and performace pay jobs, the extent to which wage functions differ between the two, and the magnitude of the unobserved ability differential between salary and performance pay workers...