Professor of Economics at Harvard University. Her research focuses on how to improve the tax and transfer system for firms and individuals. She combines theory and empirics to study the effects of taxes and transfers on economic outcomes and how to incorporate these effects into our tax models, and focuses on three main topics: 1) The dynamic, long-run effects of taxes on innovation, human capital, and wealth; 2) The determinants of our social preferences, attitudes, and perceptions that ultimately drive support for redistribution. For this, she conducts large-scale online surveys and experiments. 3) The effects of taxes in imperfect markets with informational frictions and rents. Since May 2018, she has been a member of the French Council of Economic Advisers (Conseil d’Analyse Economique). Starting January 2020, Stefanie is also co-editor at the Quarterly Journal of Economics. She received her Ph.D. in Economics from MIT in 2014 and was a junior fellow at the Harvard Society of Fellows 2014-2016 before joining the Harvard Department of Economics in July 2016.