International trade economists typically assume that there are no cross-country differences in industry total factor productivity (TFP). In contrast, this paper finds large and persistent TFP differences across a group of industrialized countries in the 1980s. The paper calculates TFP indices,...

The core subjects of trade theory are the pattern and volume of trade: which goods are traded by which countries, and how much of those goods are traded. The first part of this paper discusses evidence on comparative advantage, with an emphasis on carefully connecting theoretical models with...

Wage inequality in the United States has increased in the past two decades, and most researchers suspect that the main causes are changes in technology, international competition, and factor supplies. The relative importance of these causes in explaining wage inequality is important for policy...