Boston Public Library

Michaud Optimization Tested

In 2003, the father of classical optimization, Nobel prize winner Harry Markowitz tested Michaud optimization. He, and colleague Nilufer Usmen, hypothesized that classical optimization would work better than resampled efficiency as long as better inputs were used. They pitted two fictitious players against each other—one using classical optimization and the other using Michaud optimization. Michaud optimization won all thirty tests, even those where the classical optimizer had better inputs! A better optimizer is more important than improved inputs.

P&I Article
Original Paper
"Resampled Frontiers vs. Diffuse Bayes: An Experiment"
Journal of Investment Management Q4 2003