PT - JOURNAL ARTICLE ED - Bruce, Brian R. TI - Editor’s Letter AID - 10.3905/jii.2013.4.3.002 DP - 2013 Nov 30 TA - The Journal of Index Investing PG - 2--3 VI - 4 IP - 3 4099 - https://pm-research.com/content/4/3/2.short 4100 - https://pm-research.com/content/4/3/2.full