We consider the partitioning of a society into coalitions in purely hedonic settings, ie, where
each player's payoff is completely determined by the identity of other members of her …

We define a solution to the problem of coalition formation that applies to purely hedonic
games. Coalition structures satisfying our requirements are called durable, and we interpret …

We propose a formal concept of the power of voice in the context of a simple model where
individuals form groups and trade in competitive markets. Individuals use outside options in …