characterize the core as a function of the utility's parameter values and show that in all cases the corresponding cores are non …-empty. We further discuss the core stable outcomes in terms of their segregating versus integrating properties. -- Coalitions … ; Core ; Stability ; Status-seeking …

coalition forms without delay in equilibrium, expected payoffs must be in the core of the characteristic function game that …This paper studies an extensive form game of coalition formation with random proposers in games with externalities. It … strong condition, the equilibrium coalition structure is not necessarily efficient. There may be multiple equilibria even in …

property which induces a rich domain on players's preferences in hedonic games, and guarantees the existence of core stable … partitions. We strengthen this observation by proving the existence of strict core stable partitions, and when a mutuality … condition is imposed as well, the existence of Nash stable partitions. -- Coalition formation ; Nash stability ; Partitions …

models of coalition formation:• Fallback (FB): Players seek coalition partners by descending lower and lower in their … preference rankings until a majority coalition forms.• Build-Up (BU): Similar to FB, except that when nonmajority subcoalitions … convergence process.FB better reflects the unconstrained, or nonmyopic, possibilities of coalition formation, whereas BU - because …

either core stability or strict core stability is under consideration, the existence problem of a stable coalition structure …We investigate the computational complexity of several decision problems in hedonic coalition formation games and … stable coalition structure and of an individually stable coalition structure turn out to be NP-complete in the strong sense …