French mathematical economist (*1834 – †1910)
He turned economics into equations. Léon Walras built the first mathematical model showing how all markets in an economy might clear at once — a framework so elegant that Schumpeter called him the greatest economist who ever lived.
Born in France in 1834, Walras developed the marginal theory of value at the same time as Jevons and Menger, working independently. His major work, Éléments d'économie politique pure, introduced general equilibrium theory: the idea that markets reach balance through a process of trial and error — what he called tâtonnement, guided by an imaginary auctioneer adjusting prices until supply meets demand everywhere at once. Pareto, Wicksell, and Cassel adopted the framework quickly. Decades later Hicks and Samuelson wove it into the neoclassical synthesis, and Arrow and Debreu refined the logical c…
Sourced, dated quotes from Léon Walras
I say that things are useful whenever they can be put to any use at all; whenever they are seen to be capable of satisfying a want.
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