Assuming you mean the Great Plains of the USA- it boosted their sales because of the government buying more wheat to ship overseas to assist in refugee and military supplies, assuming the farmer(s) were not drafted into military service themselves.
The prohibition banned alcohol in America. Many people didn't want it banned while many people did want it banned. This divided the nation by having two opposing sides of a big "problem"
President Franklin D. Roosevelt laid his plans aimed to end the Great Depression through The New Deal program. The New Deal is set of laws which will be passed for the first 100 days of his term. This does not include the Fair Labor Standards Act.