“…Joseph Alois Schumpeter, “one of the greatest economists of all time” (Haberler, 1950, p. 1), once described the great Austrian theoretician Emil Lederer as “the leading academic socialist of Germany in the 1920s” (Schumpeter, 1954, p. 884). However, with the exception of very few papers (Allgoewer, 2003; Dickler, 1981, 1983, 1987; Diebolt, 2006; Esslinger, 1997, 1999; Hagemann, 1997, 2000; Michaelides et al , 2010a, b) no adequate research seems to have been done on Emil Lederer's works and, as a result, most aspects of Emil Lederer's works and his affinities with other great economists remain unexplored.…”