This paper investigates robust optimization methods for mean-variance portfolio selection problems under the estimation risk in mean returns. We show that with an ellipsoidal uncertainty set based on ...

Scarf's max-min order formula for the risk-neutral and ambiguity-averse newsvendor problem is a classical result in the field of inventory management. In this article, we extend Scarf's formula by ...

Google is rolling out six new features for Performance Max campaigns, including the long-awaited optimization score. Advertisers now have a quick and easy way to identify areas for improvement before ...