A snippet of The California Report (I think) on KQED this morning suggested that testosterone may be the problem - it asserted (and I'm personally taking this with a huge pinch of salt until I've seen the real research) that female Wall St. traders are not nearly as susceptible to the sort of escalating risk-taking behavior that helps feed bubbles. The interviewer suggested that women ought to run Wall St., but I think we should go for a far more traditional solution: eunuchs.
Moving on from pop gender science to something entirely more serious, This American Life has produced the follow-up show to "The Giant Pool of Money": Another Frightening Show About the Economy. You can podcast/download it for free for the next week. I caught a bit of the broadcast of the show on Saturday - based on that small snippet, it sounds just as good as the previous show.
And if you really can't get enough financial analysis, the NPR business/financial correspondents who helped make "The Giant Pool of Money" and "Another Frightening Show About the Economy" have a daily podcast, Planet Money. I don't think this will be one that I permanently subscribe to, but I plan on dipping in to get there analysis of interesting events over the next few weeks.