PT - JOURNAL ARTICLE ED - Bruce, Brian R. TI - Editor’s Letter AID - 10.3905/jii.2011.2.2.001 DP - 2011 Aug 31 TA - The Journal of Index Investing PG - 1 VI - 2 IP - 2 4099 - https://pm-research.com/content/2/2/1.short 4100 - https://pm-research.com/content/2/2/1.full