Working Paper

A Large-Market Rational Expectations Equilibrium Model

Xavier Vives
CESifo, Munich, 2011

CESifo Working Paper No. 3485

This paper presents a market with asymmetric information where a privately revealing equilibrium obtains in a competitive framework and where incentives to acquire information are preserved. The equilibrium is efficient, and the paradoxes associated with fully revealing rational expectations equilibria are precluded without resorting to noise traders. The model admits a reinterpretation in which behavioral traders coexist with rational traders, and it allows us to characterize the amount of induced mispricing.

CESifo Category
Industrial Organisation
Behavioural Economics
Keywords: adverse selection, information acquisition, double auction, multi-unit auctions, rate of convergence, behavioural traders, complementarities
JEL Classification: D820, D840, G140