[quote author="green_cactus" date=1234323222][quote author="skek" date=1234322019]To oversimplify things, cheap debt and easy credit resulted in an epic bubble economy causing asset prices (notably residential RE, but not solely) to divorce themselves from fundamental values and fueling irresponsible consumer spending at the expense of savings and investment. That banks leveraged themselves was a symptom of the problem, not the cause -- they leveraged themselves because the cheap credit underpriced risk and the returns seemed "to good to be true." And to preempt your next question, lax regulation and greed certainly fueled the problem.
BTW, as I type this, Ron Paul is smacking Bernanke around in the House financial services committee meeting.</blockquote>
Doesn't the leveraging of derivative products massively amplify the problem?</blockquote>
Sure, but in order to leverage, you have to be able to get cheap money and you have to actually be able to buy something with it. By the time synthetic derivatives were being traded, the die was already cast as sub-prime lenders were running out of customers. When that happened, the party was over. Even had the banks not been trading in derivatives, the fall in home prices would have occured and we would be in the exact same place, albeit without the additional worry of "toxic assets" keeping the banks from being nationalized.