Socialism is strictly “impossible.” Its impracticability is not, as Bryan Caplan has suggested, a “quantitative” matter, nor does he show that real‐world socialism's incentive problems outweighed its informational ones. Caplan's criticism of Ludwig von Mises's critique of the “possibility” of socialism fails to appreciate what he meant by “socialism” and misunderstands Mises's argument about economic calculation. History, too, suggests that socialism's informational deficiency was the most significant problem facing those who tried to implement socialism.

Socialism is strictly “impossible.” Its impracticability is not, as Bryan Caplan has suggested, a “quantitative” matter, nor does he show that real‐world socialism's incentive problems outweighed its informational ones. Caplan's criticism of Ludwig von Mises's critique of the “possibility” of socialism fails to appreciate what he meant by “socialism” and misunderstands Mises's argument about economic calculation. History, too, suggests that socialism's informational deficiency was the most significant problem facing those who tried to implement socialism.

Ludwig von Mises argued that (1) economic calculation under socialism is impossible, and that (2) the lack of calculation would entail chaos and starvation. In these pages, Bryan Caplan has accepted the first claim but rejected the second, and has argued further that in real‐world attempts to implement socialism, it was the lack of incentives, not the absence of economic calculation, that was responsible for economic chaos. I suggest, against Caplan's interpretation, that by “chaos” Mises meant the lack of calculation, (...) rather than some further state of affairs entailed by this lack. So interpreted, Mises's argument escapes the brunt of Caplan's criticisms. (shrink)

In the 1920s, Ludwig von Mises argued correctly that the problem of making economic calculations without market‐generated prices would be an insuperable difficulty for socialist systems of production. Bryan Caplan is right to argue that there is no theoretical way to infer the magnitude of this difficulty, but he is wrong to insist that the history of poor economic performance displayed by real‐world socialism should be attributed not to the “socialist calculation problem,” but to inadequate work incentives. A state that (...) had solved the calculation problem would have well within its means the solution to the incentives problem, too. (shrink)