This paper analyses the impact of competition among downstream firms on an upstream firm's payoff and on its incentive to vertically integrate when firms on both segments negotiate optimal contracts. We argue that tougher competition decreases the downstream industry profit, but improves the...

In this paper, we want to characterize the optimal health insurance contract with adverse selection and moral hazard. We assume that policyholders differ by the permanent health status loss and choose an unobservable preventive effort in order to reduce the probability of illness which is...

This paper investigates the impact of health risk on insurance contract with hazard moral. We use a bi-dimensional utility function (wealth and health status). We prove that the type of health risk influences the equilibrium of insurance market. A full coverage is possible with moral hazard....

A partir d’une étude de l’offre de contrats d’assurance dépendance en France, on analysera les principales caractéristiques des contrats proposés (qu’ils soient individuels ou collectifs, facultatifs ou obligatoires). Les termes des contrats seront définis (niveau de dépendance...

De nombreux arguments théoriques ont été mis en avant pour expliquer les décisions de souscrire ou non à de l'assurance dépendance. Quelques études empiriques ont étudié ces phénomènes sur le marché américain mais très peu de travaux ont été effectués sur le marché français de...

In this paper, we discuss how fraud losses impact the price structure chosen by a monopolistic payment platform, if merchants can invest in fraud detection technologies. We show that liability rules bias the structure of the prices charged by the platform to consumers and merchants with respect...

A principal needs a worker for the production of a good. The worker can be hired as an internal agent, or an external agent under a contract. These two organizational modes correspond to in-house production and outsourcing, respectively. In each case, the agent earns experience benefits: future...

This paper analyzes the interactions between vertical integration and (wholesale) spot, forward and retail markets in risk management. We develop an equilibrium model that fits electricity markets well. We point out that vertical integration and forward hedging are two separate levers for demand...

Le régime de l’assurance des catastrophes naturelles en France est actuellement en équilibre. Cependant, un évènement majeur peut le déséquilibrer et l’Etat peut être appelé en garantie. Des événements climatiques récents ont conduit à l’élaboration d’une réforme,...