TY - JOUR T1 - How bad were the good old days? JF - The Journal of Portfolio Management SP - 1 LP - 2 DO - 10.3905/jpm.1990.409258 VL - 16 IS - 2 AU - Peter L. Bernstein Y1 - 1990/01/31 UR - https://pm-research.com/content/16/2/1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -