Why did the US move from gold standard to fiat currency in the 1930s?

The U.S. moved from the gold standard to Fiat currency during the 1930s primarily in response to the Great Depression, which created severe economic challenges and deflation. The gold standard limited the money supply, constraining the government's ability to stimulate the economy. By transitioning to fiat currency, the government could increase the money supply and implement more flexible monetary policies to encourage spending and investment. This shift aimed to stabilize the economy and promote recovery.