TY - JOUR T1 - Editor’s Letter JF - The Journal of Investing SP - 4 LP - 5 DO - 10.3905/joi.2011.20.1.004 VL - 20 IS - 1 A2 - Bruce, Brian R. Y1 - 2011/02/28 UR - https://pm-research.com/content/20/1/4.abstract N2 - ER -