War production played a significant role in economic recovery:
The USA produced vast amounts of military equipment, including 86,000 tanks, 296,000 aircraft, and 15 million rifles.
Unemployment dropped to 1.2% by 1944 (from 14.6% in 1940).
GNP grew from $91.3 billion in 1939 to $166.6 billion by 1945.
Farm income increased by 250%.
Women entered the workforce in large numbers, with 6.5 million joining by 1944.
African American employment in the federal government grew from 50,000 in 1939 to 200,000 by 1944.
Despite inflation (28% rise in prices), wages increased by 40%, helping to fuel the post-war economic boom.
The war led to a rise in the national debt, from $41 billion in 1941 to $260 billion in 1945.
Roosevelt increased taxes, with the highest earners paying 94% tax, contributing to greater income equality.