Well the assassination of Archduke Franz Ferdinand is said to be the most immediate cause of ww1
He believed the American people would have more money to spend so it would stimulate the economy. He stood for tax cuts to give Americans back their money.
Answer: American factories were retooled to produce goods to support the war effort and almost overnight the unemployment rate dropped to around 10%. As more men were sent away to fight, women were hired to take over their positions on the assembly lines.
