Forthcoming American Economic Journal: MacroeconomicsNon-Tariff Barriers in the U.S.-China Trade WarTuo Chen · Chang-Tai Hsieh · Zheng (Michael) SongChen, Hsieh, and Song study the use of unofficial non-tariff barriers (NTBs) by China during the U.S.-China trade war of 2018–2019 and in the first year of the Phase 1 purchase agreement (2020). The …