RT Journal Article SR Electronic T1 PERSPECTIVES: Are Passive Investing Techniques Efficient for Active Strategies? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 1 OP 4 DO 10.3905/jpm.2020.46.4.001 VO 46 IS 4 A1 David Blitz YR 2020 UL https://pm-research.com/content/46/4/1.abstract AB