Economics lacks a good theory of the pricing and output decisions of a monopolist which does not know its demand--we inevitably assume that the monopolist knows much more about demand conditions than is reasonable. I present a model in which demand information is generated endogenously. When...

This paper investigates the effects of international trade policy on wages in U.S. manufacturing industries in 1983. The data set combines micro labor market data with comprehensive data on tariffs and nontariff trade barriers such as quotas and antidumping duties. The authors find that workers...

The rising prominence of intra-industry trade and huge multinationals has transformed the way economists think about the gains from trade. In the past, we focused on gains that stemmed either from endowment differences (wheat for iron ore) or inter-industry comparative advantage (David Ricardo's...

Using data on U.S. intra-firm and arm's-length imports for 5705 products imported from 220 countries, we examine the determinants of the share of U.S. imports that are intra-firm. We examine two predictions that arise from Antràs (2003), Antràs and Helpman (2008) and Antràs and Helpman...

We show that the "skill bias" of a country's tariff structure is positively correlated with long-term per capita GDP growth. Testing for causal mechanisms, we find evidence consistent with the existence of real benefits from tariffs focused in skill-intensive industries. However, this only...