What part of the US economy had the biggest boost after ww1?

After World War I, the U.S. economy experienced a significant boost in the manufacturing sector. The war had accelerated industrial production and technological advancements, leading to increased efficiency and output. Additionally, the demand for consumer goods surged as soldiers returned home, contributing to a booming economy characterized by mass production and consumerism. This period laid the groundwork for the economic prosperity of the 1920s.