I characterize a generalization of the negligence rule to assign compensating damages in an accident involving multiple tortfeasors. These tortfeasors have the opportunity to undertake spending in prevention and the rule is designed to provide them with the best incentives to do so. I study the...

A cause du cadre réglementaire et des politiques gouvernementales qui s'appliquent à la demande d'énergie, celle-ci a reçu beaucoup d'attention de la part des développeurs de modèles. Dans cet article, je présente un modèle intégré de la demande totale d'énergie. Les principaux...

A group of agents located along a river have quasi-linear preferences over water and money. We ask how the water should be allocated and what money transfers should be performed. We are interested in efficiency, stability (in the sense of the core), and fairness (in a sense to be defined). We...

La consommation totale d'énergie du secteur commercial québécois a augmenté de 7,3% entre 1990 et 1998 (à l'exclusion de l'éclairage des voies publiques). Cet accroissement est attribué à une augmentation de l'activité économique mesurée en fonction de la surface de plancher (12,9%),...

This paper provides an analysis of screening contracts in a complete but imperfect information environment as opposed tothe usual incomplete information (Bayesian) environment. An agent faces a hold-up situation while making a cost-reducing specific investment that is not observed by the...

If they are to be attained, the objectives set in the Kyoto Protocol will impose fundamental changes on the structure of North America's economy. This text highlights the extent of the Kyoto challenge by clearly describing the historical inertia in terms of total market shares for different...

We construct a model of valuation to assess the financial fragility of a set of firms in a closed economy. A firm is identified with a possibly infinite random sequence of benefits. Firms with negative benefits in a given period are said to be in distress and need liquidity to refinance their...

The Porter hypothesis predicts that environmental regulations (ER) should have a positive impact on the productivity of the regulated firms. In this paper, we review the theoretical and empirical arguments surrounding this hypothesis. We show that there are relatively few formal theoretical...

Cet article présente de manière non technique certains des fondements théoriques possibles de l'hypothèse de Porter selon laquelle, des réglementations environmentales strictes peuvent améliorer le profit des industries qui y sont soumises. Après une brève présentation de l'hypothèse,...

We consider a market with three competitors, two of which decide to cooperate. Firms first choose capacity under demand uncertainty then compete in quantities after the uncertainty has been resolved. We specify strategic alliance (SA) as an agreement where two airlines jointly choose capacity...