Firm-level productivity differences are big and largely ascribed to ex-ante heterogeneity in the entrepreneurs’ growth potential at birth. Where do these ex-ante differences come from, and what can the policy do to encourage the entry of high-growth entrepreneurs? I study empirically and by...

This paper provides causal evidence on impact of immigrant labor mobility frictions on business dynamism. An unexpected information-technology change to the Green Card process reduced inter-firm mobility for Indian and Chinese immigrants in October 2005. The shock impacted startups...