TY - JOUR T1 - Editor’s Letter JF - The Journal of Investing SP - 1 DO - 10.3905/joi.2011.20.4.001 VL - 20 IS - 4 A2 - Bruce, Brian R. Y1 - 2011/11/30 UR - https://pm-research.com/content/20/4/1.abstract N2 - ER -