F. A. Hayek's realistic economic theory has been replaced by the formalistic use of equlibrium models that bear little resemblance to reality. These models are as serviceable to the right as to the left: they allow the economist either to condemn capitalism for failing to measure up to the model of perfect competition, or to praise capitalism as a utopia of perfect knowledge and rational expectations. Hayek, by contrast, used equilibrium to show that while capitalism is not perfect, it contains (...) error‐correcting institutions that bring it closer to perfection than is intuitively apparent. (shrink)