PT - JOURNAL ARTICLE AU - Erik Feyen TI - INVITED EDITORIAL AID - 10.3905/jpm.2015.41.3.001 DP - 2015 Apr 30 TA - The Journal of Portfolio Management PG - 1--3 VI - 41 IP - 3 4099 - https://pm-research.com/content/41/3/1.short 4100 - https://pm-research.com/content/41/3/1.full