The analysis of horizontal mergers hinges on a tradeoff between unilateral effects and efficiency gains. We examine the role of uncertainty in this tradeoff. In theory, the attitude towards uncertainty depends on the curvature of the social objective function. On the one hand, adjustment...

We model asymmetric information arising from physician agency and its effect on the design of payment and health care quantity. The physician aims to maximize a combination of physician profit and patient benefit. The degree of substitution between profit and patient benefit in the physician...

[eng] Female Labour Supply and Child Care . . We estimate a model of the decision by mothers of young children to use paid child care services and to work (participation and working hours : half-time , 80 %, full-time ), using French microeconomic data . Our research suggests that the cost of...

In Europe, competition authorities have the power to close antitrust cases with “commitment decisions” after the concerned firms have offered agreed remedies. We show that the optimal use of this instrument is governed by a tradeoff between deterrence of potentially anticompetitive practices...

[eng] Universal Service Obligations and Competition in Networks.. The opening of public networks to competition raises the twofold question of determining which operator is to fulfil the universal service obligations and how the operator’s resultant losses are to be financed. The paper...

[fre] Philippe Choné Michel Grignon Ronan Mahieu Quelles fonctions économiques pour des opérateurs de soins dans le système de santé français ? Cet article part d'un constat empirique : dans de nombreux pays, une nouvelle fonction économique émerge, qui consiste non seulement à acheter...

We study optimal taxation under extensive preferences: the agents[modifier letter apostrophe] utilities are constant for positive actions up to a maximal productivity level. Utilities may be discontinuous at the origin, reflecting fixed costs of participation. Allowing for general distributions...

This paper investigates the strategic effects of case preparation in litigation. Specifically, it shows how the pretrial efforts incurred by one party may alter its adversary's incentives to settle. We build a sequential game with one-sided asymmetric information where the informed party first...

This article considers a stationary economy populated with overlapping generations that reproduce identically in continuous time. Each dynasty has a productivity and an opportunity cost of going to work that vary with age. Labor supply is extensive. At each date, the typical agent can either...