Finance, sex, social status

http://news.yahoo.com/s/ap/20080405/ap_on_sc/finance_and_sex_10

"Stanford psychologist Brian Knutson, a lead author of the study, says it's all about the power of emotion and arousal and our financial decisions. The link between sex and greed goes back hundreds of thousands of years, to men's role as provider or resource gatherer to attract women, said Kevin McCabe, professor of economics, law and neuroscience at George Mason University, who wasn't part of the study."

There's a bit more to it...