Simon Property Group (SPG), the largest shopping mall operator in the U.S., has nearly doubled its cash dividend over the past couple years as profits revived. The quarterly payout has gone from 60 cents a share at the start of 2010 to $1.10 a share now. In this year alone, the company has increased its dividend by 5 cents a share in all four quarters. Meanwhile, the stock has climbed 23% this year, outpacing the S&P 500's 14% rise. It's currently