Wojciech Kopczuk is a professor at the School of International and Public Affairs (SIPA) and the Department of Economics at Columbia University. Kopczuk's research focus is on issues related to tax policy and income and wealth inequality. His work has been published in top economics journals, including American Economic Review, Quarterly Journal of Economics, Journal of Political Economy and Review of Economic Studies. He is a co-editor of the Journal of Public Economics and associate editor of the American Economic Journal: Economic Policy. Click here for a full list of publications.