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α: calibrated so average coauthorship-adjusted count equals average raw count
This paper studies the effect of firm entry deregulation on the returns to skill and education. We exploit a comprehensive episode of entry deregulation, unique in the industrialized world, as a quasi-natural experiment. Using matched employer–employee data for the universe of workers and firms in Portugal, we show that increased product market competition, which resulted from deregulation, increased the returns to a university degree and the returns to skill. We verify that our results are not driven by changes in employment composition, and are unlikely to be driven by skill-biased technical change, or by workers who change skill levels after the deregulation.