Answer:As World War II transformed both the United States and the USSR, turning the nations into formidable world powers, competition between the two increased. Following the defeat of the Axis powers, an ideological and political rivalry between the United States and the USSR gave way to the start of the Cold War.
The mechanization of American manufacturing accelerated in the 1920s, and this led to a much more rapid growth of productivity in manufacturing compared to earlier decades and to other sectors at that time. There were several forces that promoted mechanization
