PT - JOURNAL ARTICLE AU - Paul D. Kaplan AU - Scott L. Lummer TI - Update AID - 10.3905/joi.1998.408472 DP - 1998 Nov 30 TA - The Journal of Investing PG - 11--17 VI - 7 IP - 4 4099 - https://pm-research.com/content/7/4/11.short 4100 - https://pm-research.com/content/7/4/11.full