I may be wrong, but I do believe this may have to do with Andrew Jackson's election, and the voting requirements changed because you no longer had to own property or be wealthy to vote. The common, free white man could vote.
Answer:
I think the demand for that specific produce
The Cold War Containment policy was a complete bust because we pour money into failing countries so they there economy was strong enough to where they wouldn't have radical thoughts of communism this was referred to as the Truman doctrine and then the Eisenhower doctrine that funded the middle east. Then we went into the police action "war" in Korea so that the domino effect wouldn't allow other nations to fall to communism