You mean in practice or in theory? Because with any political party, the outcome is always different.
Question 1:
There were sparking fundamental changes in economic institutions, macroeconomic policy, & economic theory.
Question 2:
1) Stock Markets Crash of 1929
2) Bank Failures
3) Reduction in purchasing across the board
Democracy, or power by the people. This was founded in Ancient Greece and is still used today.
Most isolationists felt that there was no need for americans to feel threatened by developments in Europe and Asia because the vast pacific and atlantic oceans insulated the country from troubles in those regions, and the United States had formed friendly alliances with all the other nations in the Western hemisphere.