This is Valentine's Day, so its a good day to ask the question: who is smarter when it comes to investing--men or women? Multiple studies have been done to determine the answer. And today on Mastering Money we will reveal the findings. We have the data from a Merrill Lynch study of 11,500 personality assessments, tests at the University of California, and statistics from Vanguard comparing the trading habits of men and women. Today, you will finally learn who is smarter, women or men?!!