Menger contre Walras

MENGER VERSUS WALRAS It is common to see in the rejection by Carl Menger of the use of mathematics only an anecdotal specificity which differentiates the author, on the form exclusively, from the marginalist analysis of Leon Walras. We show that, ultimately, Menger's rejection of mathematics (of a certain type) is a coherent decision perfectly justified by the vision of economic reality which the author seeks to analyse and by the methods he judges most appropriated. Some tools available today, the tools of complexity, seem well adapted to the thinking of this author and allow his renewal. We propose the broad outlines of a Neo-Mengerian program rooted in complexity economics