PT - JOURNAL ARTICLE ED - Bruce, Brian R. TI - Editor’s Letter AID - 10.3905/jii.2010.1.1.002 DP - 2010 May 31 TA - The Journal of Index Investing PG - 2 VI - 1 IP - 1 4099 - https://pm-research.com/content/1/1/2.short 4100 - https://pm-research.com/content/1/1/2.full