RT Journal Article SR Electronic T1 Employing Sector and Security Factors to Enhance Global Index Returns JF ETFs and Indexing FD Institutional Investor Journals SP 72 OP 80 VO 2000 IS 1 A1 Herbert D Blank A1 C. Michael Carty A1 Scott Stark YR 2000 UL http://guides.pm-research.com/content/2000/1/72.abstract AB