The stock market crash in October of 1929 is  believed to be the beginning of the Great Depression. However, that did not start the Great Depression. What truly started it was when the Federal reserve bank (FED) began to raise interest rates in 1929. People began hoarding money because they did not trust the banks. There were many disadvantages of hoarding money. Hoarding money is not saving it. If people hoarded money instead of saving it in the bank it would be less useful because there would be no money in the bank for people to use.  This took business from the bank. There were many negative outcomes of the Great Depression.