Ethan Lewis is a Professor of Economics at Dartmouth College and a Research Associate with the National Bureau of Economic Research. His research investigates how U.S. labor markets adjust to immigration and to technological change, including how employers adapt their production technology to the local availability of immigrant workers. His newest work investigates the impact of U.S. immigration policies, including the Reagan amnesty. His findings have appeared in top eco­nomics journals, including the American Economic Review, the Quarterly Journal of Economics, the Journal of Political Economy, the American Economic Journal, and the Review of Economics and Statistics. His work has been covered in the New York Times, Wall Street Journal, The Economist, Newsweek and other media outlets. Ethan received his Ph.D. in economics from UC Berkeley in 2003. His email address is ethan.g.lewis@​dartmouth.edu.