PT - JOURNAL ARTICLE AU - Richard C. Grinold AU - Ronald N. Kahn TI - Information Analysis AID - 10.3905/jpm.1992.409408 DP - 1992 Apr 30 TA - The Journal of Portfolio Management PG - 14--21 VI - 18 IP - 3 4099 - https://pm-research.com/content/18/3/14.short 4100 - https://pm-research.com/content/18/3/14.full