Murray N. Rothbard, Israel Kirzner and the Economic Man

This short review of Israel Kirzner’s The Economic Point of View appears here in a 2016 republication of the work documented as Economics as a Moral Science (1961). Rothbard uses Kirzner’s history of the scope of economics to defend a conception of the discipline grounded in purposeful individual action rather than material acquisitiveness or mechanically predictable behavior.

The review begins with the familiar caricature of economics as the study of money-making by an unfeeling “economic man.” Rothbard locates its partial historical basis in British classical economics: unable adequately to integrate consumers into their theory, the classical economists concentrated on businessmen seeking pecuniary profit. This obscured the role of consumers’ values in directing production. Mill’s advocacy of homo oeconomicus further encouraged critics to mistake a restrictive theoretical construction for the essential subject of economics.

Kirzner’s achievement, in Rothbard’s account, is to trace the widening of that subject, culminating in Mises’s praxeology:

And rather than being confined to certain specific goods or certain particular motives, economic analysis embraces all goods, material or immaterial, and all motives, and analyzes these actions from a certain particular aspect.

The decisive conceptual move is from a classification by objects or motives to an analysis of the formal relation between means and ends. Enjoying a concert is as available to economic analysis as pursuing monetary gain; Crusoe’s solitary choices fall within praxeology even without interpersonal exchange. This breadth does not mean that economics explains every feature of conduct. Its concern is the logical implications of purposive action.

Economics, therefore, in its profoundest sense, is not a quantitative, empirical statistical science as most people believe; it is a philosophical, qualitative, and deductive discipline.

The final section turns this methodological claim into a polemic against behavioral social science. Rothbard characterizes attempts to formulate laws governing the content of human conduct as mechanistic and determinist. Praxeology, by contrast, begins from action, which he explicitly connects with purposiveness and freedom of will. His appeal to conservative readers rests on this claimed defense of human agency:

Praxeological economics rests squarely on the reality of the individual person, not on the collective; and instead of burying values and purpose, it portrays the individual as striving purposively to achieve his cherished ends.

The review’s concluding distinction reconciles value-free economic laws with economics understood as a “moral science.” Economic deduction does not prescribe the ends people should pursue, but its foundational account of persons recognizes their purposes and values. The review thus makes Kirzner’s history serve a broader defense of Austrian methodology: economics becomes relevant to humanistic concerns precisely by abandoning the narrow identification of rational action with selfish money-making.