Tariffs, Free Trade, and Industrial Policy: Reconsidering Protectionism in the Trump Era

Abstract

This Perspective article examines the role of tariffs and protectionism in contemporary economic policy through the example of the U.S. President Donald Trump’s 2025 tariff regime. Although Trump’s tariffs are presented as a way to restore American manufacturing, correct trade deficits, and strengthen national security, this essay argues that the policy is unlikely to achieve these goals because it lacks a coherent industrial strategy. Instead, unpredictable and broad-based tariffs risk increasing costs for American households, discouraging investment, placing pressure on some developing export economies, and destabilizing the global trading system. However, rejecting Trump’s tariff regime should not lead to an uncritical defense of free trade. By revisiting classical arguments for free trade, especially Smith’s division of labor and Ricardo’s comparative advantage, this essay shows that free trade has important theoretical strengths but does not automatically solve questions of development, distribution, or national economic strategy. The different examples of the East Asian miracle suggest that selective protectionism can contribute to development, but these policies worked through wider industrial strategies rather than tariffs alone. The history of the United States also shows that tariffs have repeatedly served different purposes within changing policy frameworks; it does not by itself establish that tariffs caused economic growth. Therefore, the real question is not whether tariffs are always good or always harmful. More specifically, tariffs are defensible only when they address a clearly identified problem, form part of a coherent and predictable policy, are temporary or conditional upon measurable performance, and are embedded within a broader industrial strategy.