My first reaction to "The Credibility Revolution in Empirical Economics," authored by Joshua D. Angrist and Jörn-Steffen Pischke, was: Wow! This paper makes a stunningly good case for relying on purposefully randomized or accidentally randomized experiments to relieve the doubts that afflict...

This paper seeks to review how globalization might explain the recent trends in real and relative wages in the United States. We begin with an overview of what is new during the last 10-15 years in globalization, productivity, and patterns of U.S. earnings. To preview our results, we then work...