L'objet de cet article est d'amnder le modele d'Ehrlich et Backer pour l'adapter aux problemes specifiques poses par les soins de sante en supposant que l'individu est a la fois averse aux risques de revenu et de sante. Nous derivons les proprietes d'une part de la demande de soins curatifs et...

Using an extension of the influence-driven lobbying approach developed by Grossman and Helpman, we study the impact of regional trading arrangements (RIAS) on trade policy towards non-members in a three-good, three-country model.

It is commonly found that uncertainty helps discipline economic agents in strategic contexts. Using a stochastic variant of the Nash Demand Game, we show that the presence of uncertainty may have a dramatically opposite effect. Cautious (efficient) and dangerous (inefficient) equilibria may...

La premiere partie de ce texte examine les conditions analytiques sous lesquelles on peut attribuer une valeur a une langue ou une autre, en distinguant notamment les valeurs privee et sociale, marchande et non-marchande. La seconde partie illustre la premiere a l'aide d'une estimation de la...

Large cities produce more output per capita than small cities. This higher productivity may occur because more talented individuals sort into large cities, because large cities select more productive entrepreneurs and firms, or because of agglomeration economies. We develop a model of systems of...

We investigate the predictability of stock returns in the financial market for a large panel of developed countries using investor sentiment, business-cycle variables and financial indicators within two panel regime-switching models, with threshold and smooth transition between regimes. We find...

In this paper, we develop alternative models to price derivative securities when the underlying asset may be subject to jumps. These models allow for two kinds of jumps: scheduled jumps which are caused by information for which the disclosure data is known in advance (e.g. earnings...

The aim of this paper is twofold. First we discuss the origin of tree methods. Essentially we survey earlier methods that led to CHAID (Kass, 1980; Biggs et al., 1991). The second goal is then to explain in details the functioning of CHAID, especially the differences between the original method as...