Transitory and Permanent Import Tariff Shocks in the United States: An Empirical Investigation

Stephanie Schmitt-Grohe and Martín Uribe

No 33997, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We estimate transitory and permanent import tariff shocks in the United States over the postwar period. We find that transitory tariff increases are neither inflationary nor contractionary, and are not associated with monetary tightening. In contrast, permanent tariff increases trigger a temporary rise in inflation (a one-off increase in the price level) and a brief tightening of monetary policy. Consistent with the intertemporal approach to the balance of payments, transitory tariff increases reduce imports and improve the trade balance, whereas permanent increases leave both largely unchanged. Transitory shocks account for approximately 80 percent of tariff movements. Overall, tariff shocks are estimated to be a minor driver of U.S. business cycle fluctuations on average and even during episodes of substantial tariff hikes, such as Nixon 1971, Ford 1975, and Trump 2018.

JEL-codes: E31 E52 F13 F41 (search for similar items in EconPapers)
Date: 2025-07
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