1. David Blitz is managing director of Quantitative Investments at Robeco
Asset Management, Rotterdam, the Netherlands.
2. Guido Baltussen is professor of finance at Erasmus School of Economics,
Erasmus University, Rotterdam, the Netherlands, and executive director of Quantitative
Investments at Robeco Asset Management, Rotterdam, the Netherlands.
3. Pim van Vliet is managing director of Quantitative Investments at Robeco
Asset Management, Rotterdam, the Netherlands.