PT - JOURNAL ARTICLE AU - Francis H. Trainer, Jr. AU - Jess B. Yawitz AU - William J. Marshall TI - Holding period is the key to risk thresholds AID - 10.3905/jpm.1979.408681 DP - 1979 Jan 31 TA - The Journal of Portfolio Management PG - 48--54 VI - 5 IP - 2 4099 - https://pm-research.com/content/5/2/48.short 4100 - https://pm-research.com/content/5/2/48.full