PT - JOURNAL ARTICLE ED - , TI - Editor's Letter AID - 10.3905/joi.1999.390907 DP - 1999 May 31 TA - The Journal of Investing PG - 6--6 VI - 8 IP - 2 4099 - https://pm-research.com/content/8/2/6.short 4100 - https://pm-research.com/content/8/2/6.full