Why did US economy becomes more productive after World War 1?

The US economy became more productive after World War I due to several factors, including technological advancements and increased industrial capacity. The war spurred innovations in manufacturing and processes, which were later adapted for civilian use. Additionally, the 1920s saw a surge in consumer demand and investment, fueled by the availability of credit and a growing middle class. This combination of innovation, industrial growth, and consumer spending contributed to significant productivity gains.