We consider a class of symmetric games with externalities across coalitions and show that, under certain regularity conditions, restricting the deviating power to majority guarantees the existence of core-stable allocations. We also show that if majorities can extract resources from minorities,...

In this paper we review a number of coalitional solution concepts for the analysis of cartel and merger stability in oligopoly. We show that, although so far the industrial organization and the cooperative game-theoretic literature have proceeded somehow independently on this topic, the two...