TY - JOUR T1 - Plus Ca Change? JF - The Journal of Portfolio Management SP - 4 LP - 4 DO - 10.3905/jpm.7.3.4 VL - 7 IS - 3 A2 - Bernstein, Peter L. Y1 - 1981/04/30 UR - https://pm-research.com/content/7/3/4.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -