How did the harley smoot tariff make the depression worse

It increased 900 import tariffs by an average of 40% to 48%. Most economists blame it for worsening the Great Depression. It also contributed to the start of World War II. In June 1930, Smoot-Hawley raised already high U.S. tariffs on foreign agricultural imports.

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my cultural heritage consists of irish, german, native american, and others.