PT - JOURNAL ARTICLE AU - Brian R. Bruce TI - Editor’s Letter AID - 10.3905/jii.2016.7.1.001 DP - 2016 May 31 TA - The Journal of Index Investing PG - 1 VI - 7 IP - 1 4099 - https://pm-research.com/content/7/1/1.short 4100 - https://pm-research.com/content/7/1/1.full