Roger G. Ibbotson is emeritus professor of the practice of finance at Yale School of Management and has written extensively on capital market returns, cost of capital, and international investment. He is the former chairman and founder of Ibbotson Associates, a financial research and information firm that was acquired by Morningstar, Inc. in 2006. He is also the chairman, founder, and CIO of Zebra Capital, which manages equity market neutral and long/short hedge fund strategies. He has written a book with Rex A. Sinquefield called Stocks, Bonds, Bills and Inflation. Professor Ibbotson received a Ph.D. from the University of Chicago, an MBA from Indiana University, and a B.S. from Purdue University.
