productivity in the generation segment of the industry. Controlling explicitly for sources of price-heterogeneity across firms and …

This paper investigates how enforcement of labour regulation affects the firm's use of informal labour, firm size and … level, and administrative data on enforcement of regulation at the city level, we show that in areas where law enforcement … labour productivity. We control for different regional and firm characteristics, and we instrument enforcement with the …

reconcile the conflicting primal and dual estimates of productivity growth over the period. …

-size distribution? Do they affect individual city sizes? Do they contribute to the productivity advantage of large cities and the nature …