This paper uses new administrative data from the German Federal Employment Agency - the Integrated Employment Biographies Sample IEBS - to assess the impact of a mandatory employment quota for disabled workers in Germany. We use an exogenous change, introduced through the 'Law to Combat...

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...