Oskar Lange

Oskar Lange (1904–1965) was a Polish economist who formulated the most influential response to Mises's critique of socialist calculation. In a series of essays in the 1930s, Lange proposed a market socialism in which publicly owned enterprises respond to prices set by a central planning board through a trial-and-error process analogous to the Walrasian tâtonnement.

Lange's argument accepted Mises's epistemic premise — that rational allocation requires price information — but denied his institutional conclusion. Prices need not emerge from private ownership and exchange, Lange argued; they can be discovered by a planning board that adjusts prices until supply equals demand, exactly as a market does. The computer, Lange later suggested, could perform the calculations that the market performs through decentralized interaction.

The debate between Mises and Lange is not merely historical. It is the prehistory of contemporary disputes about algorithmic governance and digital platforms. Lange believed that a sufficiently powerful computational system could replace market coordination. The platforms have proven him half-right: they do perform algorithmic coordination at a scale that would have astonished him. But they have also proven Mises half-right: the coordination is not democratic, not accountable, and not oriented toward social welfare. It is oriented toward extraction.

Project Cybersyn was, in effect, Stafford Beer's attempt to synthesize Mises and Lange: a cybernetic system that used real-time feedback rather than either market prices or central planning. The synthesis failed. But the problem remains.