Ihave to turn this in sooner than 5 !

explain the importance of the great depression on the american and the world economy? what were three of the major causes of the collapse during the great depression?

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