We develop a theory and an empirical strategy to estimate the welfare gains from trade in economies with frictional local labor markets. We obtain a welfare formula that nests previous results and features an additional adjustment margin, via the employment rate. To obtain causal estimates of...

Is skill dispersion a source of comparative advantage? While it is established that a country's aggregate endowment of human capital is an important determinant of comparative advantage, this paper investigates whether the distribution of skills in the labor force can play a role in the...

Are differences in the quality of workers' prospects outside of their current employment relationship influential in generating pay differentials? We consider the role of an economy's industrial structure in generating differences in outside prospects, and apply our analysis to the gender pay...

We argue that skill-biased technological change not only affects wage gaps between skill groups, but also increases wage inequality within skill groups, across workers in different workplaces. Building on a heterogeneous firm framework with labor market frictions, we show that an industry-wide...

Wage inequality has risen in many countries over recent decades. At the same time, production has become increasingly concentrated in a small number of firms. In this paper, we show that these two phenomena are linked. Theoretically, we show that shocks that increase concentration will also lead...

In this paper we provide a new identification strategy to test for the presence of putty-clay capital, i.e. capital that once installed cannot be re-invested. Using a panel of Indian manufacturing firms between 1995 and 2006, we quantify the response of firm sales within and across industries to...

Wage inequality has risen in many countries over recent decades. At the same time, production has become increasingly concentrated in a small number of firms. In this paper, we show that these two phenomena are linked. Theoretically, we show that shocks that increase concentration will also lead...