US Tariffs in a Model with Trade and FDI

Kaan Celebi and Werner Roeger

No 2111, Discussion Papers of DIW Berlin from DIW Berlin, German Institute for Economic Research

Abstract: The new US administration has a clear agenda of reducing imports to the US and attract FDI by reducing tariffs and using the proceeds for supporting investment in the US. This paper uses a dynamic two country US vs RoW model where monopolistically competitive firms make export and FDI decisions. We study how this additional FDI channel affects the impact of import tariffs on the US and RoW economy. We model both the international supply linkages of domestic producers and subsidiaries of foreign firms as well as EoS of FDI sales with domestic products and imports in order to capture cost and demand channels affecting FDI decisions. Concerning the respective elasticities we use both trade elasticities as well as estimates on the effect of tariffs on the import to inward FDI sales ratio. We are in particular interested how the use of tariff revenues affects the outcome of a tariff. We find that a unilateral US tariff with transfers to households has positive effects on US consumption and leads to rising inward FDI and reduces US imports. However, rising production and investment cost reduce total US investment. A real dollar appreciation cushions the effect of tariffs on RoW exporters but increase the cost for production and investment, generating a negative spillover to the RoW. If tariffs are accompanied by investment subsidies the expansionary effects for the US are significantly larger and total US investment becomes positive. This holds especially for FDI flows to the US. The investment boom generated in the US increases world interest rates. This contributes to larger negative spillovers to the RoW. The use of tariff revenues also affects how the US and RoW are affected in case of (full) retaliation. In case of transfers, the US is hit more since higher openness increases cost of production and investment more in the US. This ranking is reversed in case of subsidies. Higher US openness generates more tariff revenues as a share of GDP and therefore more investment subsidies.

Keywords: international trade; foreign direct investment; import tariffs; USA; two-country open economy model (search for similar items in EconPapers)
JEL-codes: F13 F21 F23 F41 O24 (search for similar items in EconPapers)
Pages: 25 p.
Date: 2025
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