TY - JOUR T1 - Editor’s Letter JF - The Journal of Index Investing SP - 1 DO - 10.3905/jii.2012.3.3.001 VL - 3 IS - 3 A2 - Bruce, Brian R. Y1 - 2012/11/30 UR - https://pm-research.com/content/3/3/1.abstract N2 - ER -