Simple Criteria for Optimal Portfolio Selection with Upper Bounds. - Edwin J. Elton; Martin J. Gruber; Manfred W. Padberg (Oper. Res., 1977)

Harry Markowitz and my AFA presidential address. - Martin J. Gruber (Ann. Oper. Res., 2025)

Another puzzle: the growth in actively managed mutual funds. - Martin J. Gruber (Ann. Oper. Res., 2025)