The May 2019 Edition of the National Bureau of Economic Research The NBER Digest highlights a paper by Pablo Fajgelbaum.  Along with co-authors Pinelopi Goldberg (Yale (leave) and World Bank), Patrick Kennedy (UC Berkeley), and Amit Khandelwal (Columbia), their paper “The Return to Protectionism” has been cited for its analysis of the welfare effects of tariffs during the recent trade war, and of the impact across U.S. regions with different voting patterns in the last presidential election