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[The Ghost of Smoot-Hawley: Lessons from History on Modern Tariffs]-[Worst. Tariffs. Ever. (update)]

Planet Money · B2 · 2024-12-11

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📋 Summary

The Shadow of Smoot-Hawley: Economic Protectionism Then and Now

The Historical Context: The Great Depression and the "Smoot-Hawley" Infamy

In the annals of economic history, the Hawley-Smoot Tariff Act of 1930 stands as a cautionary tale of protectionism gone wrong. As economist Doug Irwin notes, the act was intended to protect American farmers—who were being left behind by the booming manufacturing sector—by raising tariffs on imports. However, through a process known as "log rolling" (vote trading), the bill ballooned from a targeted measure for wool and sugar into a massive legislative sprawl covering over 800 products, including niche items like goldfish.

Economists at the time were famously exasperated, with over a thousand signing a letter begging President Herbert Hoover to veto the bill. They warned of "unintended consequences" and the inevitable "retaliation" from other countries. The reality proved worse: Canada, for example, retaliated by raising tariffs on American eggs, leading to a collapse in U.S. egg exports. Globally, trade fell by 26%, and the act is widely viewed by historians as a brick thrown to a drowning economy, exacerbating the Great Depression.

The Shift in Executive Power

A critical evolution since 1930 is the delegation of tariff authority. Following the chaotic "tariff-crazy" days of the early 20th century, Congress realized it could not be trusted to moderate its own protectionist impulses. Consequently, Congress delegated tariff-setting powers to the executive branch. This shift explains why modern tariffs, such as those imposed during Donald Trump’s first term, lack the "goldfish lobby" snowball effect of the 1930s. Instead, they are characterized as "very targeted, very political tariffs" implemented without the need for extensive congressional trade-offs.

The Trump Era: Protectionism Reimagined

During his first term, President Trump imposed tariffs on steel and aluminum, citing national security. Despite these measures, economists argue they failed to revitalize the industries and led to "downstream effects," where manufacturing costs rose for U.S. companies. Studies, such as those from the Tax Foundation, suggest these tariffs functioned as a tax on domestic consumers, amounting to an average increase of $200–$300 per household.

As President-elect Trump proposes even broader tariffs for his second term—including a potential 20% baseline on all imports and up to 60% on goods from China—economists are once again expressing concern. The prospect of these sweeping measures invokes the "Smoot-Hawley energy" that previously led to global trade blocs and retaliatory cycles.

Conclusion: The "Full Pass-Through" Reality

The economic evidence remains consistent: when a nation imposes import tariffs, it is effectively taxing its own consumers rather than the exporting nation. The historical lesson of Smoot-Hawley, as evidenced by the "full pass-through" of costs to final purchasers, remains a stark warning. While the political allure of protecting domestic sectors through tariffs is strong, the long-term economic reality involves increased costs for households and the risk of counter-tariffs that stifle global trade. As Doug Irwin concludes, despite the political theater surrounding these policies, the underlying economic mechanics—and the risk of "shooting ourselves in the foot"—remain unchanged.

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📖 Transcript

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