[Beowulf9]

It’s NOT a lie. The market crashed after the House voted for the tariff bill in 1929, then the senate passed it in 1930, and Hoover signed it……and he also raised the top income tax rate from 25% to 65%.

[central_va]

You can believe your B school propaganda if you'd like too. In reality Smoot Hawley had little or no effect on the depression.

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Milton Friedman was also of the opinion that the 1930 Smoot–Hawley Tariff did not cause the Great Depression. Douglas A. Irwin writes: "Most economists, liberal and conservative alike, doubt that Smoot Hawley had much to do with the subsequent contraction."[29]

William J. Bernstein wrote:[30]

Between 1929 and 1932, real GDP fell 17% worldwide, and 26% in the United States, but most economic historians now believe that only one A minuscule part of that huge loss in both world GDP and US GDP can be attributed to tariff wars.

... At the time of Smoot–Hawley's passage, the volume of trade represented only about 9% of world economic output. If all international trade had been eliminated and no domestic use found for previously exported goods, world GDP would have fallen by the same amount: 9 percent. Between 1930 and 1933, the volume of world trade fell by between a third and a half. Depending on how the drop is measured, this equates to between 3 and 5 percent of global GDP, and these losses were partially offset by more expensive domestic goods. Thus, the damage caused could not have exceeded 1 or 2 percent of global GDP, or even close to the 17 percent drop seen during the Great Depression... The inescapable conclusion: Contrary to public perception, Smoot–Hawley did not cause, or even significantly deepened, the Great Depression.