What was a key effect of the U.S. economic boost during World War II?

The key effect of the U.S. economic boost during World War II was the growth in the manufacturing sector. As the United States entered the war, there was an immense demand for military equipment, supplies, and munitions. This need catalyzed the expansion of factories and production lines, which reoriented the economy from peacetime consumer goods to wartime manufacturing. Industries that produced everything from airplanes to tanks saw unprecedented growth as the government invested heavily in contracts for wartime production.

This surge in manufacturing not only provided jobs at a time when many were struggling with the effects of the Great Depression but also led to innovations and increases in productivity that would have lasting effects on the American economy post-war. This period also contributed significantly to the eventual economic prosperity of the United States in the following decades, as the infrastructure and skills developed during the war contributed to a robust post-war economic boom.