Rob Arnott, chairman and CEO of money manager Research Affiliates in Newport Beach, Calif., has serious academic credentials. A summa cum laude graduate of the University of California, Santa Barbara, he has written more than 100 academic articles and was editor of the prestigious Financial Analysts Journal from 2002 to 2006. One of his talents is to bridge the worlds of academia and money management. For example, he is a big proponent of fundamental indexing, for which he received a patent and which emphasizes factors such as cash flow and book value, as opposed to stock-market capitalization. Arnott is also a…