TY - JOUR T1 - Editor’s Letter JF - The Journal of Index Investing SP - 2 DO - 10.3905/jii.2014.5.2.002 VL - 5 IS - 2 A2 - Bruce, Brian R. Y1 - 2014/08/31 UR - https://pm-research.com/content/5/2/2.abstract N2 - ER -