PT - JOURNAL ARTICLE AU - Harold M. Edelstein TI - Can Information P1ease AID - 10.3905/jpm.1976.30 DP - 1976 Apr 30 TA - The Journal of Portfolio Management PG - 30--33 VI - 2 IP - 3 4099 - https://pm-research.com/content/2/3/30.short 4100 - https://pm-research.com/content/2/3/30.full