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...

Does fractionalization change over time? If so, are there any substantial implications foreconomic performance? To answer such questions, we construct a new panel data set withfractionalization measures for 26 former communist countries covering the period from 1989to 2002...