High U.S. tariffs led to a significant decrease in international trade flows and potentially worsened the economic crisis, as evidenced during the Great Depression.
One long-term effect of high U.S. tariffs was a dramatic drop in international trade flows throughout the world, leading to a possible deepening of the economic crisis, as seen during the Great Depression. The Smoot-Hawley Tariff Act of 1930 is a significant example that raised tariffs and triggered retaliatory actions from other countries, reducing world trade substantially.
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