Most of regulators in health care systems use pooling contracts such that payment do not depend on the level of severity. This policy is motivated by concerns about the moral hazard problem. In this paper, we show that it can be optimal when patient severity is private information because of the...

We analyze quality competition between hospitals under vertical health care services differentiation and price regulation. We show that a regulator can set a price to achieve the first-best level of quality for any market structure. However, under free entry, the number of entering hospitals at...

<marquage typemarq="gras"/> This paper analyzes the properties of the English auction with bidding credits that is used for e-procurement in the case of differenciated goods. Assuming that production costs are increasing with the level of quality and that the score function of the buyer is concave, we characterize the...