TY - JOUR T1 - Editors’ Introduction to the Special Issue on Investment Models JF - The Journal of Portfolio Management SP - 1 LP - 5 DO - 10.3905/jpm.2021.47.5.001 VL - 47 IS - 5 AU - Frank J. Fabozzi AU - Kees Koedijk Y1 - 2021/03/31 UR - https://pm-research.com/content/47/5/1.abstract N2 - ER -