All of the following were causes of the Great Depression EXCEPT?
1) the gold standard caused a tightening of currency supplies worldwide
2) Corporated structures had been bloated by the success of the 1920s but were unprepared for the tightening of the economy
3) Mellon's business-friendly tax policies enticed the rich into more frenzied stock market speculation
4) Much of the profits that had been taken during the 1920s had been put back into companies rather than saved or invested other ways
5) as consumer spending declined, the rate of investment in new factories and businesses also plummeted