Uh Rick Scarf is a breath away from mentioning the gold standard.

The simple solution to the entire economy is simply to end public trading of banks and provide a clear path for partnerizing large financial institutions. It's significantly more difficult to write-off a half billion in losses as a CEO when it comes out of your own pocket. The short-term solution is to limit banks from investing more than the employee-held market capitalization in securities and derivatives, and to lower the capital gains tax to offset the temporary selling pressure over the 5-10 years it would take to mandate such a standard.