PT - JOURNAL ARTICLE AU - Brian R. Bruce TI - Editor’s Letter AID - 10.3905/jii.2015.6.3.002 DP - 2015 Nov 30 TA - The Journal of Index Investing PG - 2--2 VI - 6 IP - 3 4099 - https://pm-research.com/content/6/3/2.short 4100 - https://pm-research.com/content/6/3/2.full