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Tariffs and Free Trade Agreements

Paper Session

Saturday, Jan. 3, 2026 8:00 AM - 10:00 AM (EST)

Philadelphia Convention Center
Hosted By: American Economic Association
  • Chair: Roc Armenter, Federal Reserve Bank of Philadelphia

Tariffs and Goods-Market Search Frictions

Pawel Krolikowski
,
Federal Reserve Bank of Cleveland
Andrew McCallum
,
Federal Reserve Board

Abstract

We study uniform tariffs in a general equilibrium dynamic model with search frictions between heterogeneous exporting producers and importing retailers. We analytically characterize unilateral import tariffs that maximize domestic welfare. Search frictions lower these tariffs because of market thickness effects, which reinforce aggregate production nonconvexities. A calibration using 2016 U.S. and Chinese data suggests that optimal U.S. unilateral and Nash equilibrium tariffs with baseline search frictions are 10 ppt. below those in a model with reduced search frictions. Changes in welfare in response to changes in tariffs are smaller in the model with baseline search frictions than in the model with reduced frictions. In the Nash equilibrium with baseline search frictions, U.S. (Chinese) tariffs are 17 (8) ppt. higher and welfare is 0.1 (0.9) percent lower relative to 2016 tariff levels.

Interdependence, Sectoral Linkages, and the Costs and Benefits of Negotiating Free-Trade Agreements

Shubhi Agarwal
,
University of Florida
Hamid Firooz
,
Federal Reserve Bank of San Francisco
Gunnar Heins
,
University of Florida

Abstract

The last decades have seen a substantial increase in the number of free trade agreements (FTAs). The vast majority of these agreements, however, have been signed between richer economies with only limited participation by developing countries. This paper studies the reasons for and consequences of this trend and develops a model to quantify the costs and benefits of FTAs in the presence of intermediate goods, input-output linkages, sectoral heterogeneity, and interdependence across FTAs, when countries endogenously negotiate FTAs with each other. In light of challenges regarding the dimensionality of the problem, we adapt the approach developed by Jia (2008) to the present setting and quantify the importance of falling negotiating costs, welfare gains, cross-country heterogeneity, and cross-FTA complementarities in the recent rise in the number of new FTAs. Our estimates imply that heterogeneity in the potential gains and costs from FTAs is the main reason why FTAs are primarily negotiated between rich economies and that these FTAs may increase rather than decrease the probability of developing countries participating in FTAs in the future.

The Cost of Dissolving the WTO: The Role of Global Value Chains

Ahmad Lashkaripour
,
Indiana University
Mostafa Beshkar
,
Indiana University

Abstract

As trade agreements face renewed pressure, we show that the rise of global value chains has multiplied the value of trade agreements to unprecedented levels. We cast our argument using a non-parametric neoclassical trade model that accommodates global input-output networks and nests a wide class of quantitative trade models as a special case. To guide our analysis, we derive analytic formulas for optimal non-cooperative trade taxes in this general framework. These formulas predict the extent of trade restriction if global trade agreements were to dissolve. Mapping these formulas to data, we quantify the value of trade agreements for various countries. We find that the disintegration of existing trade agreements will erase 30% of the overall gains from trade, which amounts to a $2.8 trillion loss in global GDP. Around 46% of this value is driven by the agreements’ facilitation of global value chains.

Two-sided Search in International Markets

Jonathan Eaton
,
Pennsylvania State University
David Jinkins
,
Copenhagen Business School
James Tybout
,
Pennsylvania State University
Daniel Yi Xu
,
Duke University

Abstract

We develop a dynamic model of international business-to-business transactions in which sellers and buyers search for each other, with the probability of a match depending on both individual and aggregate search effort. Fit to customs records on U.S. apparel imports, the model captures key cross-sectional and dynamic features of international buyer-seller relationships. We use the model to make several quantitative inferences. First, we calculate the search costs borne by heterogeneous importers and exporters. Second, we provide a structural interpretation for the life cycles of importers and exporters as they endogenously acquire and lose foreign business partners. Third, we pursue counterfactuals that approximate the phaseout of the Agreement on Textiles and Clothing (the “China shock”) and the IT revolution. Lower search costs can significantly improve consumer welfare, but at the expense of importer profits. On the other hand, an increase in the population of foreign exporters can congest matching to the extent of dampening or even reversing the gains consumers enjoy from access to extra varieties and more retailers.

Discussant(s)
Svetlana Demidova
,
McMaster University
Ariel Weinberger
,
George Washington University
Matthew Grant
,
Dartmouth College
Lukasz Drozd
,
Federal Reserve Bank of Philadelphia
JEL Classifications
  • F1 - Trade
  • D6 - Welfare Economics