Pat Dorsey, CFA, is Director of Equity Research at Morningstar, Inc. He played an integral part in the development of the Morningstar Rating for stocks, as well as Morningstar’s economic moat ratings. Dorsey is also the author of three excellent books;The Five Rules for Successful Stock Investing:, and The Little Book That Builds Wealth.Heholds a master’s degree in political science from Northwestern University and a bachelor’s degree in government from Wesleyan University.

Morningstar’s Pat Dorsey outlines the major competitive advantages that give superior companies the power to stay on top.