Are Pierre Leroux, Pierre-Joseph Proudhon and Leon Walras economists? Certainly, but to a different extent. This alphabetical order, which is also that of chronology, seems to be in inverse order of merit—at least in the opinion of Joseph A. Schumpeter, who praised Walras as “the greatest of all economists…as far as pure theory is concerned” (1954, p. 827), but who briefly described Proudhon as someone who defended “results that are no doubt absurd” (ibid., p. 457). Leroux's name does not even appear in Schumpeter's 1954 book, nor in any other history of economic thought. Although the judgment pronounced by a historian on one or another of our three authors may be contested, there seems no reason to call into question the hierarchy implicitly established by Schumpeter. In a certain way the succession: Leroux, Proudhon, Walras, represents and summarizes the development of political economy, beginning with the embryonic stage (which would be represented by Leroux), passing through the disorders of adolescence (Proudhon), and finally arriving at the stage of scientific maturity (Walras).
English Translation Series: Japanese Historians of Economic Thought〈12〉 Tadashi Hayasaka, Alfred Marshall, England's Industrial Leadership and Pure Theory