The answer to your question is coastal areas. D
It is an economic system that features characteristics of both capitalism and socialism. It protects private property while allowing a level of economic freedom in the use of capital, but also allows for governments to interfere in economic activities in order to achieve social aims.
They didn't because they weren't focused on it. It was the age of technological advancement, industry, wild parties and rich city slickers. The so called roaring twenties. Everyone was focused on factories and development that they didn't pay attention to the farmers.