PT - JOURNAL ARTICLE AU - Paul A. Samuelson TI - The judgment of economic science on rational portfolio management AID - 10.3905/jpm.1989.409238 DP - 1989 Oct 31 TA - The Journal of Portfolio Management PG - 4--12 VI - 16 IP - 1 4099 - https://pm-research.com/content/16/1/4.short 4100 - https://pm-research.com/content/16/1/4.full