We study economies where all commodities are indivisible at the individual level, but perfectly divisible at the aggregate level. Paper (fiat) money which does not influence agents preferences may be used to facilitate exchange. In a parallel paper (Florig and Rivera (2002), we introduced a...

We study economies where all commodities are indivisible at the individual level, but perfectly divisible at the aggregate level. Under general hypotheses over the economy, the ain contribution of this paper is the prove that a rationing equilibrium converge to aWalrasian equilibrium of a limit...

In this paper we consider a class of pure exchange economies in which the consumption plans may be restricted to be above a minimal level. This class is parameterised by the initial endowments and the constraints on the consumption. We show that the demand functions are locally Lipschitzian and...

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...

When infinite-lived agents trade long-lived assets secured by durable goods, equilibrium exists without any additional debt constraints or uniform impatience conditions on agents' characteristics. Also, regardless of whether assets' net supply is positive or zero, price bubbles are absent when...

In infinite horizon incomplete market economies, when the seizure of collateral guarantees is the only mechanism enforcing borrowers not to entirely default on their promises, equilibrium exists independently of the choice of collateral bundles.In these economies, we analyze if generic...

When infinite-lived agents trade long-lived assets secured by durable goods, equilibrium exists without any additional debt constraints or uniform impatience conditions on agents' characteristics. Also, price bubbles are absent when physical endowments are uniformly bounded away from zero.

We study welfare and core equivalence for a competitive equilibrium defined on an economy where all commodities are indivisible at the individual level, but perfectly divisible at the aggregate level. In our model is assumed that thereexists a continuum parameter, which can be interpreted as...

La importancia de los mecanismos de transmisión de la política monetaria hacen imprescindible un estudio acabado de los posibles canales por los que pueda influir el instrumento utilizado. El mecanismo tradicional de transmisión es aquel en el que un aumento de la tasa de interés busca...

Although fiat money is useless in standard Arrow-Debreu models, in this paper we will show that this general conclusion does not hold true when goods are indivisible. In our setting, fiat money is valuable because it facilitates exchange, its price will always be positive and equilibrium...