As I understand it, the Great Depression was caused because of overspeculation. This overspeculation was made possible by overlending (history seems to repeat itself, eh?). The overlending happened because banks did not have an objective standard of value from which to judge how much they could safely and rationally lend. The reason? Because instead of reserves based on an objective standard of value (gold!), the government had been artifically inflating their reserves with paper hoping to fuel a never-ending boom of liquidity and growth. Instead they got us the Great Depression. The current crisis was likewise caused by too much credit, artifically too much credit created at the hands of a bizarre "orgy" between big business and big government. The problem isn't that there was not enough oversight or regulation, the problem is that there was too much incest. A free market unhampered by the contrivances of interventionist government and opportunistic, greedy businessmen would not have created such a crisis because it would have had a market-determined amount of credit at a market-determined price.