What was the condition of America's economy following World War I?
The USA joined WWI when its economy was in a recession, it lasted until after the end of the war. A big recession occurred in 1920 and 1921 a recovery put an end to the economic slump. It lasted until the 1929 crisis. The roaring twenties were a period of unprecedented prosperity.
When World War I started the US economy was in recession. From 1914 -1918 the US economy was not in recession. Due to demand for goods from the nations that were at war the US economy boomed.
Unemployment dropped from 7.9 % to 1.4% Because of the positive trade balances produced by world war I the US went from being a debtor nation to being a credit nation. Stimulating the economy.