This essay introduces the symposium on computer science and economic theory.

The information content of prices is a central problem in the general equilibrium analysis of competitive markets. Rational expectations equilibrium identifies conditioning simultaneously on contemporaneous prices and private information as the mechanism by which information enters prices. Here...

The authors investigate the informational role of volume and its applicability for technical analysis. They develop a new equilibrium model in which aggregate supply is fixed and traders receive signals with differing quality. The authors show that volume provides information on information...

This paper provides an analysis of the asymptotic properties of Pareto optimal consumption allocations in a stochastic general equilibrium model with heterogeneous consumers. In particular, we investigate the market selection hypothesis that markets favor traders with more accurate beliefs. We...

The market selection hypothesis states that, among expected utility maximizers, competitive markets select for agents with correct beliefs. In some economies this hypothesis holds, whereas in others it fails. It holds in complete-markets economies with a common discount factor and bounded...