After the existence of general equilibrium was proved in the early 1950s, the next decade brought applications of general-equilibrium theory to policy issues such as the welfare effects of tariffs and the incidence of the corporate income tax. By the 1970s, general-equilibrium theory was being...

Hayek was among the first to realize that, in intertemporal equilibrium, all agents must have correct expectations of future prices. Before comparing four categories of intertemporal equilibrium - (1) Perfect-foresight equilibrium, (2) Radner’s sequential equilibrium with incomplete markets,...