PT - JOURNAL ARTICLE AU - Martin S. Fridson TI - Exactly What do You Mean by Speculation? AID - 10.3905/jpm.1993.29 DP - 1993 Oct 31 TA - The Journal of Portfolio Management PG - 29--39 VI - 20 IP - 1 4099 - https://pm-research.com/content/20/1/29.short 4100 - https://pm-research.com/content/20/1/29.full