In multi-party democracies, several parties usually have to join together in coalitionto form government. Many aspects of that process have been fairly fully investigated,others less so. Among the latter is the timing of the formation and announcement ofcoalitions.1While the dominant popular...

The core is reformulated to incorporate the externality typical in strategic formgames. Any coalition of players may deviate by trying to commit to a profile of actionsdifferent from a status quo. The outsiders of the coalition may take a coordinatedmeasure, incentive-feasibly for themselves, to...

Qualitative coalitional games (QCG) are representations of coalitional games in which self interested agents, each with their own individual goals, group together in order to achieve a set of goals which satisfy all the agents within that group. In such a representation, it is the strategy of...

We consider the class of proper monotonic simple games and study coalition formation when an exogenous share vector and a solution concept are combined to guide the distribution of coalitional worth. Using a multiplicative composite solution, we induce players' preferences over coalitions in a...

Previous work on the formation and stability of cartels has focused on the case of identical players. This assumption is very restrictive in many economic environments. This paper analyses stability of cartels in games with heterogeneous players and spillovers to non-members. I introduce a...

We present a taxonomy of myopic stability concepts for hedonic games in terms of deviations, and discuss the status of the existence problems of stable coalition tructures. In particular, we show that contractual strictly core stable coalition tructures always exist, and provide su¢ cient...

We propose a class of sharing schemes for the distribution of the gains from cooperation for coalition games with externalities. In the context of the partition function, it is shown that any member of this class of sharing schemes leads to the same set of stable coalitions in the sense of...

Our concern is the extension of the theory of the Shapley value to problems involving externalities. Using the standard axiom systems behind the Shapley value for an arbitrary exogenous coalition structure leads to the identification of bounds on players’ payoffs around an...

A core allocation of a complete information economy can be characterized as one that would not be unanimously rejected in favor of another feasible alternative by any coalition. We use this test of coalitional voting in an incomplete information environment to formalize a notion of resilience....

We consider (cooperative) linear production games with a continuum of players. The coalitional function is generated by r + 1 production factors that is, non atomic measures defined on an interval. r of these are orthogonal probabilities which, economically, can be considered as cornered...