TY - JOUR T1 - Invited Editorial Comment JF - The Journal of Portfolio Management SP - 3 LP - 6 DO - 10.3905/jpm.2013.39.3.003 VL - 39 IS - 3 AU - Robert A. Schwartz AU - Liuren Wu Y1 - 2013/04/30 UR - https://pm-research.com/content/39/3/3.abstract N2 - ER -