Stern Stewart & Co. GmbH - Publications - With regular publications Stern Stewart Research contributes to the debate regarding the top-management agenda amongst practitioners and academics and offers approaches and startegies for current issues. - 38_Super return or super overestimation? The advantages and disadvantages of private equity management - With regular publications Stern Stewart Research contributes to the debate regarding the top-management agenda amongst practitioners and academics and offers approaches and startegies for current issues.