Businesses and industries in the 1920s most closely followed the buying demands of consumers.
The 1920s were the times of economic boom in America: the industries were advancing in the production of consumer goods, and people all over the U.S. was excited to buy. The invention of credit and the impressive use of advertisement propaganda led to the start of the era of consumerism. This is why businesses and industries was pointed towards the buyers.
That it was terrible and not as advanced as today.
Jim Crow Laws is the answer.
