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...

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...

We quantify a class of commonly-employed general equilibrium models of international trade and pricing-to-market that feature firm-level heterogeneity and consumers with nonhomothetic preferences. We demonstrate theoretically that the models lack the flexibility to match salient features of US...

We quantify a class of commonly-employed general equilibrium models of international trade and pricing-to-market that feature firm-level heterogeneity and consumers with nonhomothetic preferences. We demonstrate theoretically that the models lack the flexibility to match salient features of US...

This paper investigates the positive international spillover effects of non-discriminatory product regulations, such as quality standards. We incorporate regulations into a multi-country general equilibrium framework with firm heterogeneity and variable markups. We model regulations as a...