PT - JOURNAL ARTICLE AU - Peter L. Bernstein TI - The ill-behaved e's AID - 10.3905/jpm.1987.409118 DP - 1987 Jul 31 TA - The Journal of Portfolio Management PG - 1--3 VI - 13 IP - 4 4099 - https://pm-research.com/content/13/4/1.short 4100 - https://pm-research.com/content/13/4/1.full