High-skilled workers and high-productivity firms co-locate in large cities. In this paper, I study how the two-sided sorting of workers and firms affects spatial earnings inequality, efficiency of the allocation of workers and firms across cities, and the welfare consequences of place-based...

In this paper we explore the impact of place-based innovation policy in Europe. We focus on the effects of Smart Specialisation strategies on the labour productivity of regional economies. We design an analytical framework that takes into account the entrepreneurial discovery process through...

Why do cities differ so much in productivity? We document that most of the measured dispersion in productivity across US cities is spurious and reflects granularity bias: idiosyncratic heterogeneity in plant-level productivity and size, combined with finite plant counts. As a result, economies...