Pat Dorsey on How He Became Interested in the Topic of Moats. Pat Dorsey is the Vice Chairman and Director of Research & Strategy at the Sanibel Captiva Trust Company, an independent trust company serving high net worth clients, based in Sanibel, Florida. Before joining SanCap, Pat was Director of Equity Research at Morningstar for over ten years, where he was responsible for the overall direction of Morningstar’s equity research, as well as for communicating Morningstar’s ideas to the media and clients. He led the development of Morningstar’s economic moat ratings as well as the methodology behind Morningstar’s framework for competitive analysis. Pat is the author of two books––The Five Rules for Successful Stock Investing : Morningstar’s Guide to Building Wealth and Winning in the Market and The Little Book That Builds Wealth: The Knockout Formula for Finding Great Investments––and has been quoted in publications such as The Wall Street Journal, Fortune, The New York Times, and BusinessWeek. Pat holds a master’s degree in political science from Northwestern University and a bachelor’s degree in government from Wesleyan University. He is a CFA charterholder.