Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We exploit presumably exogenous variation in the availability of college-educated workers at the province level produced by a reform that increased the supply of higher education to estimate human capital production externalities for Italian manufacturing firms. We show that when the potential endogeneity of local human capital is addressed, the elasticity of white-collar workers’ wages with respect to the local college share is around 0.1, while we find no evidence of a positive effect of local human capital on blue-collar workers’ wages.