Charles Ellis Charles D. Ellis (Greenwich, CT) served for 28 years as managing partner for Greenwich Associates, the global leader in strategy consulting to professional financial service firms. He has consulted with the world’s leading investment managers andsecurities firms. Primarily in the United states, but also in Australia, Canada, Japan, and the United Kingdom. The author of 12 books and more than 200 articles on investing, Ellis has taught investment courses at the Harvard Business School and the Yale School of Management. Read More Read Less