Without introducing either debt constraints or transversality conditions to avoid the possibility of Ponzi schemes, we show the existence of equilibrium in an infinite horizon incomplete markets economy with a collateral structure. Copyright The Econometric Society 2002.

This paper provides a fairly systematic study of rational asset pricing bubbles in an intertemporal competitive equilibrium framework that allows for incomplete markets, productive assets, borrowing limits, and incomplete participation of agents in markets. The main results are concerned with...

An adaptive learning rule is exhibited for the Azariadis (1981) overlapping generations model of a monetary economy with multiple equilibria, under which the economy may converge to a stationary sunspot equilibrium, even if agents do not initially believe that outcomes are significantly...