the average rankings of the other types of groups. We show that a core stable coalition structure always exists, provided …

We are concerned with the problem of core membership testing for hedonic coalition formation games, which is to decide … whether a certain coalition structure belongs to the core of a given game. We show that this problem is co-NP complete when …

the clan by a "dualize and extend" procedure. These procedures are also useful for relating core elements and elements of …

models, Shenoy's (1979) absence of the paradox of smaller coalitions provides a sufficient condition for core existence. We …. (2001) that guarantees nonemptiness of the core in more general models. As it turns out, the top coalition property implies …

would like to learn from. In this setup, we examine how the existence of core stable partitions on the distinct market sides … respect common rankings shape the existence of core stable coalitional matchings. …

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. …

We are concerned with the problem of core membership testing for hedonic coalition formation games, which is to decide … whether a certain coalition structure belongs to the core of a given game. We show that this problem is co-NP complete when …

the clan by a 'dualize and extend' procedure. These procedures are also useful for relating core elements and elements of …

players' preferences over coalitions in a hedonic game. We formalize the notion of semistrict core stability, which is … stronger than the standard core concept but weaker than the strict core notion and derive two characterization results for the … semistrict core, dependent on conditions we impose on the solution concept. It turns out that a bounded power condition, which …

models, Shenoy's (1979) absence of the paradox of smaller coalitions provides a sufficient condition for core existence. We …. (2001) that guarantees nonemptiness of the core in more general models. As it turns out, the top coalition property implies …