PT - JOURNAL ARTICLE ED - Bernstein, Peter L TI - How Speculative was the Bull Market? AID - 10.3905/jpm.15.1.1 DP - 1988 Oct 31 TA - The Journal of Portfolio Management PG - 1--1 VI - 15 IP - 1 4099 - https://pm-research.com/content/15/1/1.short 4100 - https://pm-research.com/content/15/1/1.full