It is well known that, under uniform impatience, positive net supply assets are free of bubbles for non-arbitrage kernel deflators that yield finite present values of wealth. However, this does not mean that prices cannot be above the series of deflated dividends for the deflators given by the...

This paper constructs a model of an exchange economy in which bankruptcy arises in a manner similar to what we observe. Compared to related models, this model is a more realistic representation of some markets in which intertemporal assets are traded. Using standard and natural assumptions, it...

This paper shows that the precautionary motive, combined with asset incompleteness, is a major source of volatility and indeterminacy in financial markets. Price fluctuations originate from agents' efforts to insure themselves through time by borrowing and lending instead of shifting income...

I establish an extension of the classical general equilibrium treatment of uncertainty about exogenous states to price uncertainty. Traders do not know the prices at which trade will occur, but have expectations over possible prices. They trade derivatives, price-contingent securities, to insure...

This paper presents a stochastic dynamic general equilibrium model calibrated for Venezuela that incorporates inter-sectorial relationships. With this model it is possible to assess the impact on the aggregate economic activity generated by productivity shocks or demand shocks to a specific...

We consider a Lucas asset-pricing model with heterogeneous agents, exogenous labor income, and a finite number of exogenous shocks. Although agents are infinitely lived, endowments and dividends are time-invariant functions of the exogenous shock alone and are thus restricted to lie in a...

Extrinsic uncertainty is effective at a competitive equilibrium. This is generic if spot markets are inoperative: the only objects of exchange are assets for the contingent delivery of commodities; and the asset market is incomplete. The structure of payoffs of assets may allow for non-trivial...

We investigate an overlapping generations monetary economy in which agents'expectations depend upon backward looking predictors of the future price level.

Extrinsic uncertainty is effective at a competitive equilibrium. This is generically the case if commodities are exchanged indirectly, through the exchange of assets, spot markets are inoperative, while the asset market is incomplete. <p> The structure of payoffs of assets may allow for non -...</p>

We study competitive equilibrium in sequential economies under limited commitment. Default induces permanent exclusion from financial markets and endogenously determined solvency constraints prevent debt repudiation. Our analysis shows that such an enforcement mechanism is essentially fragile,...