"During the Depression, Congress separated commercial banks, which take deposits and make loans, from investment banks, which underwrite and trade securities. The investment banks were allowed to do business with less oversight, while commercial banks operated with tighter supervision.... Congress repealed those Depression-era laws in 1999, commercial banks began muscling in on Wall Street’s turf. As the new competition whittled down profit margins, investment banks used more of their capital to trade securities and also began developing financial derivatives to fuel profits." http://www.nytimes.com/2008/09/18/business/18wall.html this is the first ive heard of this. guess i wasnt paying attention in 99. seems like this couldve contributed to banks taking bigger risks.
I don't think repeal of Glass Steagall created the problem. BofA ACQUIRED Merrill Lynch on Sunday, commercial getting hitched to investment/brokerage. The universal bank has become the PREFERRED model. I think the cause is too little regulation, and too much LEVERAGE. I started a thread on a possible solution, and that is what it addresses. New regulation, particularly on LEVERAGE, which was also a problem in the depression, when the leverage rules were put in.