This paper first presents a time-series analysis of factors influencing aggregate health care expenditure in some OECD countries. We focus on supply-side factors (especially the diffusion of medical technologies) and first estimate a single model on six countries. The results suggest that...

The aim of this paper is to estimate moral hazard effects on health expenditures based on French data. Recent studies have underlined that selection on the market of insurance is partly due to unobservable characteristics and not only to observable ones (such as health condition). Methods using...

(VF)Afin de comprendre pourquoi une banque décide la mise en faillite ou au contraire le soutien de son client en défaut de paiement, nous proposons une relecture de modèles issus de champs théoriques distincts. La littérature consacrée à la résolution des crises financières montre que...

This paper proposes a framework to analyze the functioning of the inter-bank liquidity market and the occurrence of liquidity crises. The model relies on three key assumptions: (i) liquidity provisioning is not verifiable -it cannot be contracted upon-, (ii) banks face moral hazard when...

We consider a dynamic version of sender-receiver games, where the sequence of states follows an irreducible Markov chain observed by the sender. Under mild assumptions, we provide a simple characterization of the limit set of equilibrium payoffs, as players become very patient. Under these...

We study the development of a duopoly industry -evolution of firm capacities and competitive behavior- in a continuous-time real-options model of capacity investment. Our methodology allows the evaluation of investment options and exercise rules in a strategic setup. In the initial industry...

We study a simple duopoly model of preemption with multiple investments and instantaneous Bertrand competition in a stochastically growing market. Different patterns of equilibria may arise, depending on the importance of the real option effect. If the average growth rate of the market is close...

This paper is concerned with the incentive properties of the Matthew Effect by which since Merton [1968] one is usually describing the various cumulative advantages that obviously affect academic competition. We introduce a model of sequential contests in which the agents that have initially...

In the 1970s, Thomas C. Schelling proposed a model which claimed to show that a high degree of spatial segregation can result from individual preferences which do not in themselves aim to achieve such a degree of collective segregation. A perverse effect seems therefore to occur. However, the...