PT - JOURNAL ARTICLE ED - Bruce, Brian R. TI - Editor’s Letter AID - 10.3905/jii.2012.3.3.001 DP - 2012 Nov 30 TA - The Journal of Index Investing PG - 1 VI - 3 IP - 3 4099 - https://pm-research.com/content/3/3/1.short 4100 - https://pm-research.com/content/3/3/1.full