1. Peng Chen, CFA, is managing director and chief investment officer at Ibbotson Associates, Chicago.
2. Roger G. Ibbotson is professor of finance at Yale School of Management, New Haven, Connecticut.
3. Moshe A. Milevsky is associate professor of finance at the Schulich School of Business at York University and executive director of the Individual Finance and Insurance Decisions Centre, Toronto.
4. Kevin X. Zhu is senior research consultant at Ibbotson Associates, Chicago.