TY - JOUR T1 - The ill-behaved e's JF - The Journal of Portfolio Management SP - 1 LP - 3 DO - 10.3905/jpm.1987.409118 VL - 13 IS - 4 AU - Peter L. Bernstein Y1 - 1987/07/31 UR - https://pm-research.com/content/13/4/1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -