PT - JOURNAL ARTICLE AU - Cathy Scott TI - The State of Play for Popular Investment Models: A Practical Assessment AID - 10.3905/jpm.2021.47.5.006 DP - 2021 Mar 31 TA - The Journal of Portfolio Management PG - 6--7 VI - 47 IP - 5 4099 - https://pm-research.com/content/47/5/6.short 4100 - https://pm-research.com/content/47/5/6.full