PT - JOURNAL ARTICLE ED - Bernstein, Peter L. TI - A Tale of Three Markets AID - 10.3905/jpm.1989.1 DP - 1989 Jan 31 TA - The Journal of Portfolio Management PG - 1--1 VI - 15 IP - 2 4099 - https://pm-research.com/content/15/2/1.short 4100 - https://pm-research.com/content/15/2/1.full