Market Participation and Sunspot Equilibria

Market Uncertainty: Correlated and Sunspot Equilibria in Imperfectly Competitive Economies

An imperfectly competitive economy is very prone to market uncertainty, including uncertainty about the liquidity (or "thickness") of markets. We show, in particular, that there exist stochastic equilibrium outcomes in nonstochastic market games if (and only if) the endowments are not Pareto optimal. We also provide a link between extrinsic uncertainty arising in games (e.g. correlated equilibr...

Endogenous Financial Development, Growth and Volatility∗

The paper develops a model in which both long–run growth rates and credit market development are endogenous. Agents facing idiosyncratic productivity shocks cannot perfectly commit to repay their loans, but the threat of credit market exclusion specifies endogenous debt limits preventing default in equilibrium. A growth push makes credit market participation more valuable and relaxes debt limit...

An Alternative Approach to the Existence of Sunspot Equilibria

This paper offers an alternative approach to the existence of sunspot equilibria. The economy has a single perishable good and fiat money within an overlapping generations framework with two possible extraneous events. The analysis uses the dynamic adjustment of market prices during voluntary trade to establish paths of current spot prices whose limit points are rational expectations equilibria...

Existence of Sunspot Equilibria and Uniqueness of Spot Market Equilibria: The Case of Intrinsically Complete Markets

Sunspots in the Laboratory

We show that extrinsic or non-fundamental uncertainty influences markets in a controlled environment. This work provides the first direct evidence of sunspot equilibria. These equilibria require a common understanding of the semantics of the sunspot variable, and they appear to be sensitive to the flow of information. Extrinsic uncertainty matters when information flows slowly, as in a call mar...