La dépense sanitaire est concrètement perçue par les citoyens uniquement pour la partie du coût total payée sous forme de cotisations aux assureurs maladie. La totalité de la dépense pour la médecine ambulatoire (à différence de celle hospitalière) est directement payée par les...

This note makes two comments on recent NNS models. First, it disputes the way physical capital has been introduced into these models arguing that this leads to the dubious postulate that the cost of adjusting physical capital stock is an order of magnitude lower than the cost of changing prices....

The recent East Asian crisis has highlighted the relationship between financial development and output volatility. In this essay we develop a simple model of a small open economy producing a tradeable good using a non-tradeable input and where firms access to borrowings and investment depends on...

We model natural disaster insurance in France. We explicitly take into account the main institutional features of the system, such as the uniform premium rate in both high and low risk regions and the existence of a state reinsurance company. Our model indicates that the institutional set-up is...

In this paper we specify and estimate a structural model which links product market competition and union power. The model has a two-stage setting in which wages are determined through bargaining between management and unions in the first stage, with a price-setting market game to follow in the...

This paper studies how buyers' integration affects the capacity choice of a producer. Contrary to "conventional wisdom", we show that, under natural assumptions, integration may lead to a higher equilibrium supply level. Our result hinges on the following trade-off: for any given level of...

The paper develops a theory of ownership structure based on the notion that corporate control and secondary market liquidity are not perfectly compatible with each other. We analyse the tradeoff between these two objectives for two different ownership structures: the privately held firm, which...

It is an empirically established fact that managers use cost based percentage margins when they price their goods. As a consequence, percentage mark-ups should be determined as equilibrium choices. This paper incorporates this empirical observation into the analysis of competition among...