In the early 20's there was an economic downturn caused by the same kinds of liberal economic policies. Removing those polices and allowing businesses to breath is what cause the roaring 20's.
Um asshole that was caused by the end of the war.
Depression of 1920?21 - Wikipedia, the free encyclopedia
Causes
Factors that economists have pointed to as potentially causing or contributing to the downturn include: troops returning from the war which created a surge in the civilian labor force, a decline in labor union strife, a shock in agricultural commodity prices,
tighter monetary policy , expectations of deflation.[2]
[edit] End of World War I
Adjusting from war time to peace time was an enormous shock for the U.S. economy. Factories focused on war time production had to shut down or retool their production. A short Post-World War I recession occurred in the United States following Armistice Day, but this was followed by a growth spurt. The recession that occurred in 1920, however, was also effected by the adjustments following the end of the war, particularly the demobilization of soldiers. One of the biggest adjustments was the re-entry of soldiers into the civilian labor force. In 1918, the Armed Forces employed 2.9 million people. This fell to 1.5 million in 1919 and a mere 380,000 by 1920. The impact on the labor market was most striking in 1920, when the civilian labor force increased by 1.6 million people, or 4.1%, in a single year (though smaller than Post-World War II demobilization in 1946 and 1947, it is otherwise the largest documented one-year labor force increase).[2] In the early 1920s, both prices and wages changed more quickly than today, and thus employers may have been quicker to offer reduced wages to returning troops, hence lowering their production costs, and lowering their prices.[2]