What role do spillover effects play in firm resilience during crises? Using high-frequency data on over 7 million import transactions, we ask this question in the context of the large trade disruption faced by US importers in the months immediately following the initial COVID-19 shock. While US...

What role do spillover effects play in firm resilience during crises? Using high-frequency data on over 7 million import transactions, we ask this question in the context of the large trade disruption faced by US importers in the months immediately following the initial COVID-19 shock. While US...

With non-homothetic preferences, a monopolistic competition equilibrium is inefficient in the way inputs are allocated towards production. This paper quantifies a gains from trade component that is present only when reallocation is properly measured in a setting with heterogeneous firms that...

Inefficient allocation of production across heterogeneous firms is a major source of welfare loss, but frameworks generally ignore policies that reduce the misallocation. We study the welfare effects of policies that target the selection of surviving firms. As an example of such policies, we...

Recent trade agreements have shifted their focus to non-tariff barriers such as regulations and product standards, which have been traditionally treated as pure domestic policies. The imposition of such standards reallocates production from small to large, high quality firms. We model...

With non-homothetic preferences, a monopolistic competition equilibrium is inefficient. In a setting with heterogeneous firms that charge variable markups, this paper finds a sufficient statistic for changes in allocative efficiency that can be directly measured with data. The model also...