PT - JOURNAL ARTICLE AU - Robert A. Schwartz AU - Liuren Wu TI - Invited Editorial Comment AID - 10.3905/jpm.2013.39.3.003 DP - 2013 Apr 30 TA - The Journal of Portfolio Management PG - 3--6 VI - 39 IP - 3 4099 - https://pm-research.com/content/39/3/3.short 4100 - https://pm-research.com/content/39/3/3.full