Marx Brothers Minnie helped her younger brother Abraham Elieser Adolf Schönberg (stage name Al Shean) to enter show business; he became highly successful on vaudeville and Broadway as half of the musical comedy double act Gallagher and Shean, and this gave the brothers an entree to musical comedy, vaudeville and Broadway at Minnie's instigation. Minnie also acted as the brothers' manager, using the name Minnie Palmer so that agents did not realize that she was also their mother. All the brothers confirmed that Minnie Marx had been the head of the family and the driving force in getting the troupe launched, the
Karl Marx and the Close of His System has been seen as one of the most important discussions of Marx's economic theories, along with Rudolf Hilferding's "Böhm-Bawerk's Criticism of Marx", a defense of Marx against Bawerk. Bawerk's work is the "classical" critique of "Capital". Most subsequent critiques of Marxist economics have repeated Bawerk's arguments. Marxist economist Ernest Mandel identifies "Karl Marx and the Close of His System" as part of a literature, beginning with German social democrat Eduard Bernstein, that criticizes the dialectical method Marx borrowed from Georg Wilhelm Friedrich Hegel as "useless", "metaphysical", or "mystifying." He faults Böhm-Bawerk and the other critics for what he regards as