PT - JOURNAL ARTICLE AU - Bruce I. Jacobs AU - Kenneth N. Levy TI - INVITED EDITORIAL COMMENT AID - 10.3905/jpm.2013.39.2.001 DP - 2013 Jan 31 TA - The Journal of Portfolio Management PG - 1--2 VI - 39 IP - 2 4099 - https://pm-research.com/content/39/2/1.short 4100 - https://pm-research.com/content/39/2/1.full