Business support policies designed to raise productivity and employment are commonworldwide, but rigorous micro-econometric evaluation of their causal effects is rare. Weexploit multiple changes in the area-specific eligibility criteria for a major program to supportmanufacturing jobs...

Using a large representative German data set and various concepts of self-employment, thispaper tests the “jack-of-all-trades” view of entrepreneurship by Lazear (AER 2004).Consistent with its theoretical assumptions we find that self-employed individuals performmore tasks and that their...