カール・メンガー
Lederer was born in 1882 to a Jewish merchant family. He studied law and national economy at [[Vienna University]]. Among others, his professors were [[Heinrich Lammasch]], [[Karl Theodor von Inama-Sternegg]], [[Franz von Juraschek]], [[Carl Menger]], [[Friedrich von Wieser]], [[Eugen von Böhm-Bawerk]] and [[Eugen von Philippovich]], while [[Ludwig von Mises]], [[Joseph Schumpeter]], [[Felix Somary]], [[Otto Bauer]] and [[Rudolf Hilferding]] were among his fellow students.