PT - JOURNAL ARTICLE AU - Richard C. Grinold TI - Mean-Variance and Scenario-Based Approaches to Portfolio Selection AID - 10.3905/jpm.1999.319732 DP - 1999 Jan 31 TA - The Journal of Portfolio Management PG - 10--22 VI - 25 IP - 2 4099 - https://pm-research.com/content/25/2/10.short 4100 - https://pm-research.com/content/25/2/10.full AB - In this cautionary tale, the sorcerer's apprentice uses his mentor's magic before he knows how to control it. Matters quickly get out of hand. The author argues that the scenario-based expected utility maximization approach to portfolio optimization presents similar opportunities for misadventure. He shows how to avoid the danger, Alas, as with all sorcery, when the illusion is stripped away one sees that there is less there than initially supposed. The conventional mean-variance approach gives comparable answers with less bother and peril.