Smoot–Hawley Tariff Act

https://en.wikipedia.org/wiki/Smoot%E2%80%93Hawley_Tariff_Act


the tariffs under the act, excluding duty-free imports (see Tariff levels below), were the second-highest in United States history, exceeded by only the Tariff of 1828.^[3] The Act and tariffs imposed by America's trading partners in retaliation were major factors of the reduction of American exports and imports by 67% during the Depression.^[4] Economists and economic historians have a consensus view that the passage of the Smoot–Hawley Tariff exacerbated the Great Depression.^[5]