Which nations had the best stock markets in 2012? Number one and number two will surprise you. After a great year for stocks, where did the U.S. rank? Seeking out higher yields though bonds? You might want to hear this warning. With foreign stocks doing so well, should you still be focusing your investments in the United States? Dartmouth professor Ken French explains the downside of “home bias.” Plus, the best and worst funds of 2012.