This paper provides an analysis of co-movements between real and financial variables in three new EU member countries (the Czech Republic, Hungary and Poland) and the euro area. It focuses on the co-movement between real credit granted to firms and real industrial output on the one hand, and...

Nous analysons la relation entre évolution de la qualité de crédit et cycle économique. Nous débutons par une présentation de faits stylisés puis présentons des modèles économétriques de sensibilité au cycle pour les taux de défaut et les ratios upgrades/downgrades. Dans un second...

This paper reconsiders the theory of existence of efficient allocations and equilibria when consumption sets are unbounded below under the assumption that agents have incomplete preferences. Our model is motivated by an example in the theory of assets with short-selling where there is risk and...

We consider exchange economies with a measure space of agents and for which the commodity space is a separable and reflexive Banach lattice. Under assumptions imposing uniform bounds on marginal rates of substitution, positive results on core-Walras equivalence were established in...

We are given a list of tasks Z and a population divided into several groups X j of equal size. Performing one task z requires constituting a team with exactly one member x j from every group. There is a cost (or reward) for participation: if type x j chooses task z, he receives p j (z);...

We study incentive-compatible labor contracts in the case where both individual productivity and subjective discount rate are unobservable by the rm. We rst show that unidimensional manifolds of agents group on the same contract. High , low agents may choose the same contract as low , high...

In this paper we prove the existence of general equilibrium with transaction costs generalizing Hahn's (Review of Economic Studies, 1973, 40, 449-461) model by introducing producers and nonconvexities (in particular we allow for increasing returns in transaction sets). We also recover any...

The overlapping expectations and the collective absence of arbitrage conditions introduced in the economic literature to insure existence of Pareto optima and equilibria with short-selling when investors have a single belief about future returns, is reconsidered. Investors use measures of risk....

This paper shows topological properties of the graph of the Walras correspondence such as connectedness and simple connectedness for economies with production.