To share the fixed cost of a communication network, the private cost method allocates to each subscriber the cost of his dedicated terminal devices. The external cost method shares the connecting cost of user i between all of his correspondents in proportion of their traffic with i. All convex...

Users need to connect a pair of target nodes in the network. They share the fixed connection costs of the edge. The system manager elicits target pairs from users, builds the cheapest forest meeting all demands, and choose a cost sharing rule satisfying:

A private commodity is divided among agents with single peaked preferences over their share. A rationing method elicits individual peaks (demands); if the commodity is overdemanded (resp. underdemanded), no agent receives more (resp. less) than his peak. A fixed path rationing method allocates...

Je passe d'abord en revue les résultats les plus saillants (à mon sens) du modèle proposé par Fleurbaey [1994] dans ce volume, en ce qui concerne d'une part l'impossibilité de satisfaire simultanément tous les tests de compensation et d'autre part la définition de solutions...