He received the Nobel Prize in Economics in 2021. He is a professor of economics at the University of California, Berkeley. Her research covers immigration, wages, education, and gender and ethnicity-related differences in the labor market. He has received numerous awards, including the John Bates Clark Prize in 1995. He has served as president of the AEA.
In 1995 he co-authored the book Myth and Measurement: The New Economics of the Minimum Wage and co-edited the books Small Differences that Matter: Labor Markets and Income Maintenance in Canada and the United States (1992); The Handbook of Labor Economics (1999); and Seeking a Premier Economy: The Economic Effects of British Economic Reforms (2004).