TY - JOUR T1 - Editor’s Letter JF - The Journal of Index Investing SP - 2 DO - 10.3905/jii.2011.1.4.002 VL - 1 IS - 4 A2 - Bruce, Brian R. Y1 - 2011/02/28 UR - https://pm-research.com/content/1/4/2.abstract N2 - ER -