TY - JOUR T1 - Editor’s Letter JF - The Journal of Index Investing SP - 1 DO - 10.3905/jii.2011.2.3.001 VL - 2 IS - 3 A2 - Bruce, Brian R. Y1 - 2011/11/30 UR - https://pm-research.com/content/2/3/1.abstract N2 - ER -