Edward F. McQuarrie, Ph.D., is Professor Emeritus in the Leavey School of Business at Santa Clara University in California's Silicon Valley, where he taught MBA students from 1985. After retirement in 2016, he took up new research interests in market history and retirement planning. His papers have appeared in the Financial Analysts Journal, the Journal of Portfolio Management, and the Journal of Financial Planning. He is the co-author of Retirement, alongside William J. Bernstein.

William J. Bernstein was a neurologist, co-founder of Efficient Frontier Advisors, an investment management firm, and has written several titles on finance and economic history including The Four Pillars of Investing and The Investor's Portfolio. He has contributed to the peer-reviewed finance literature and has written for several national publications, including Money Magazine and The Wall Street Journal. He has produced several finance titles, and also four volumes of history. He was the 2017 winner of the CFA Institute's James R. Vertin Award. He is the co-author of Retirement.