Answer:
Increased consumer demand for goods and services
Step-by-step explanation:
The consumer demand at that time was very high because of the closed businesses in the europe and the only country that was safe was America. The only country that benefited most by war America because it reduced the great depression by 25% and that after war, the europe lost the trust of the investors and all the investors took their money to country that has innovation, good busines policies and the most important thing was Consumer demand. The GDP at that time increase to 50% within 7 years which show that the GDP was growing with higher pace due to consumer demand within America and from greater exports which was due to collapse of European companies after war.