How did war production and higher wage lead to more sales of cars and other electronic goods
Answers
Before the advent of mass production, goods were usually manufactured on a made-to-order basis. Once mass production was developed and perfected, consumer goods could be made for the broadest possible market. Anything consumers needed or desired could be made in larger quantities. Mass production resulted in lower prices of consumer goods. Eventually, economies of scale resulted in the most affordable price of any product for the consumer without the manufacturer having to sacrifice profits.
A good case in point would be the automobile and its predecessor, the horse-drawn carriage. There was never any form of mass production of the horse-drawn carriage. A carriage was made only if there was a person, company or organization ordering it. Only then would the craftsmen who specialized in building carriages begin to create the vehicle.