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Early History of Demand Theory: Anti-Psychologist Thesis Reconsidered

Marek Hudik

Abstract

According to a widely shared view, the development of demand theory in the first half of the twentieth century was heavily influenced by anti-psychological attitudes of economists. I call this view “anti-psychologist thesis” and I criticize it on several grounds. I propose an alternative account, according to which the development of demand theory is best characterized as a process aiming towards greater generality. I provide evidence in favor of this “generalization thesis”, and I trace the cause of disagreements between advocates of these two alternative accounts. I argue that this cause lies in identifying the aim of the demand theory as well as divergent understanding of what it means to “abstract from psychological assumptions”.

Published on 13th October, 2025, in Economic Thought Vol 12, No. 1, 2024