PT - JOURNAL ARTICLE AU - Robert F. Engle TI - Invited Editorial Comment AID - 10.3905/jpm.2010.36.3.001 DP - 2010 Apr 30 TA - The Journal of Portfolio Management PG - 1 VI - 36 IP - 3 4099 - https://pm-research.com/content/36/3/1.short 4100 - https://pm-research.com/content/36/3/1.full