Final answer:
The big problem in New York, America was low income and poor income distribution among Americans, leading to economic difficulties.
Step-by-step explanation:
The big problem in New York, America was low income and poor income distribution among Americans. The stock market crash in the 1920s led to a scenario where there were no new buyers coming into the marketplace and nowhere for sellers to unload their stock. This resulted in a lack of savings, closed banks, job losses, and overall economic difficulties for the American people.