‘Liberation Day’ Tariffs May Cost America More Than They Gain

When President Donald Trump declared April 2, 2025, as “Liberation Day,” he launched sweeping tariffs aimed at shrinking the U.S. trade deficit and reviving domestic industry.

New research in the Journal of International Economics suggests the plan may work in theory only if trading partners stand down. In reality, retaliation would likely erase any short-term gains and leave both the United States and the global economy worse off. The analysis finds that the tariffs, which vary from 10 percent to as high as 54 percent depending on a country’s trade surplus with the U.S., depart sharply from what economic models suggest would be optimal policy.

How the Tariffs Were Designed

The “Liberation Day” policy set a baseline 10 percent tariff on nearly all imports, with higher rates for countries that export more to the U.S. than they import from it. China faces a combined effective rate of 54 percent, while European Union goods are taxed at 20 percent. Canada and Mexico are largely exempt under USMCA provisions. The stated goal was to protect U.S. jobs, strengthen manufacturing, and close the trade gap.

Researchers developed a quantitative trade model to examine the long-term effects. The model accounts for how tariffs are passed through to prices, how trade imbalances arise, and how employment responds under different revenue-use scenarios. They compared the current design with a theoretically optimal tariff that would apply the same rate to all trading partners.

Key Findings Without Retaliation

• The U.S. trade deficit could fall by 11–19 percent.
• Welfare gains for the U.S. would be modest, up to 1.13 percent, and only if tariff revenues were used to cut income taxes.
• Real consumer prices in the U.S. would rise by about 13 percent due to reduced variety and higher import costs.
• Trading partners would see average welfare losses of 0.6 percent, with some export-reliant economies hit hardest.
• An optimal uniform tariff, calculated at 19 percent, could increase U.S. welfare gains by 60 percent compared with the current design.

The Retaliation Problem

The benefits evaporate when other nations strike back. Under reciprocal retaliation, U.S. welfare would fall by 0.36 percent and employment would dip. Optimal retaliation by trading partners could drive U.S. welfare down by 0.75 percent. Even though the trade deficit might shrink by more than 25 percent, the costs in higher prices and lost income would outweigh the gains.

“The resulting tariff war constitutes a Prisoner’s Dilemma situation, harming all parties involved,” the authors wrote.

Global Fallout

Canada, Mexico, Ireland, Norway, and several Southeast Asian economies would bear heavy losses due to their dependence on the U.S. market. A global tariff war would cut world trade by nearly 5 percent relative to GDP and reduce global employment by up to 0.58 percent.

Tariffs and Federal Revenue

Before retaliation, the Liberation Day tariffs could bring in revenue equal to 1.1 percent of GDP, or about 5 percent of the federal budget. That would cover only a fraction of projected budget gaps. Retaliation would reduce these revenues to about 0.7 percent of GDP.

Design Matters

One of the study’s main conclusions is that the Liberation Day tariffs are poorly structured for the administration’s stated goals. Targeting tariffs by bilateral trade deficits ignores the economic principle that optimal tariffs depend on the overall trade balance, not individual country gaps. The uniform 19 percent rate identified in the study would generate more revenue and greater welfare gains in a non-retaliation world, although even those gains vanish when retaliation is considered.

Bottom Line

The authors caution that their estimates may understate the long-term costs, since the model does not capture short-term frictions such as supply chain restructuring or investment declines. They conclude that the Liberation Day tariffs may offer a brief boost if trading partners do not respond, but the high likelihood of retaliation makes them a risky bet for both the U.S. and the global economy.

Journal

Journal of International Economics, DOI: 10.1016/j.jinteco.2025.104138