This chapter reviews the new approach to international trade based on firm heterogeneity in
differentiated product markets. This approach explains a variety of features exhibited in …

This article reviews the empirical evidence on firm heterogeneity in international trade. A first
wave of empirical findings from microdata on plants and firms proposed challenges for …

We study the nonparametric identification of gross output production functions under the
environment of the commonly employed proxy variable methods. We show that applying …

We develop a dynamic trade model with spatially distinct labor markets facing varying
exposure to international trade. The model captures the role of labor mobility frictions, goods …

This paper develops and estimates an equilibrium model where heterogeneous firms can
exploit two margins of informality:(i) not register their business, the extensive margin; and (ii) …

We study the effect of top tax rates on “superstar” inventors' international mobility since 1977,
using panel data on inventors from the US and European Patent Offices. We exploit the …

We analyze the effect of exposure to international trade on earnings and employment of US
workers from 1992 through 2007 by exploiting industry shocks to import competition …

While neoclassical theory emphasizes the impact of trade on wage inequality between
occupations and sectors, more recent theories of firm heterogeneity point to the impact of …

In this paper, we develop a method to estimate markups using plant-level production data.
Our approach relies on cost-minimizing producers and the existence of at least one variable …

I argue that the winners and losers from trade are decided primarily by occupation. In
addition to fixed adjustment costs, workers build up specific human capital over time that is …