The recent reforms of the "judicial map" in Europe have drastically reduced the number of courts, raising fears of a decline in access to justice. This paper addresses this issue through a litigation model within a Salop (1979) model. We assume that victims of accidents differ both in terms of...

This article focuses on compulsory non-binding ADR when third parties have reputation concerns that make them dislike their decision be rejected by the adversary parties who in this event decide to insist on a court verdict. The third party is assumed to trade-off deviations from her favored...

We study values for transferable utility games enriched by a communication graph (CO-games) where the graph does not necessarily a¤ect the productivity but can in?uence the way the players distribute the worth generated by the grand coalition. Thus, we can envisage values that are efficient...

TU games with two-level communication structure, in which a two-level communication structure relates fundamentally to the given coalition structure and consists of a communication graph on the collection of the a priori unions in the coalition structure, as well as a collection of communication...

We study values for transferable utility games enriched by a communication graph. The most well-known such values are component-efficient and characterized by some link-deletion property. We study efficient extensions of such values: for a given component-efficient value, we look for a value...

A new class of allocation rules combining marginalistic and egalitarian principles is introduced for cooperative TU-games. It includes some modes of solidarity among the players by taking the collective contribution of some coalitions to the grand coalition into account. Relationships with other...

In a procurement first-price sealed-bid auction with risk-averse suppliers, we determine the conditions under which the buyer has an incentive to grant a supplier a right of first refusal. We show that this clause can lower the buyer’s expected cost when suppliers (the incumbent and new...

We consider the problem of sharing water from a river among the group of countries located along it. The benefit of each country depends on the amount of water it consumes. An allocation of the water is efficient when it maximizes the total benefits of the countries. The problem of finding a...

We provide a new and concise characterization of the Banzhaf value on the (linear) space of all TU-games on a fixed player set by means of two transparent axioms. The first one is the well-known Dummy player axiom. The second axiom, called Strong transfer invariance, indicates that a player's...

In this article, we study cooperative games with limited cooperation possibilities, represented by a tree on the set of agents. Agents in the game can cooperate if they are connected in the tree. We first derive direct-sum decompositions of the space of TU-games on a fixed tree, and two new...