Information technology (IT) was key to the superior overall macroeconomic performance of the United States in the 1990s--high productivity, high growth, low inflation, and low unemployment. But IT also played a role in increasing earnings dispersion in the labor market--greatly rewarding workers with high education and skills. This US performance did not happen in a global vacuum. Globalization of US IT firms promoted deeper integration of IT throughout the US economy, which in turn promoted more extensive globalization in other sectors of the US economy and labor market. How will the...