RT Journal Article SR Electronic T1 Correcting Core JF The Journal of Index Investing FD Institutional Investor Journals SP 67 OP 73 DO 10.3905/jii.2012.2.4.067 VO 2 IS 4 A1 Ron Surz YR 2012 UL https://pm-research.com/content/2/4/67.abstract AB Core investing has been around for a long time but no one has ever questioned the meaning of “core” nor has anyone ever asked if there might be different kinds of core for different purposes. This article discusses the uses of both blend and centric core and argues for a change to common practices, namely replacing blend with centric in most applications.TOPICS: Portfolio theory, portfolio construction, in portfolio management