We develop a model of assignment games with pairwise-identitydependent externalities. A concept of conjectural …

We study coalition formation problems with general externalities. We prove that if expectations are not prudent a … stable coalitions structure can fail to exist. Under prudent expectations a stable coalition structure exists if the set of … admissible coalitions is single-lapping. This assumption also guarantees the existence of a stable and efficient coalition …

This chapter surveys recent models of coalition and network formation in a unified framework. Comparisons are drawn … among various procedures of network and coalition formation, involving simultaneous and sequential moves. The survey also … discussion of efficient network and coalition formation procedures and directions for future research. …

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 … the absence of externalities, and symmetric players are not necessarily treated symmetrically in equilibrium. If the grand …

We consider a standard coalitional bargaining game where once a coalition forms it exits as in Okada (2011), however … chosen with equal probability. If that is the case, she can choose any coalition she belongs to. However, a coalition can …

We study assignment problems with externalities where agents have expectations about the reactions of other agents to …

coalition formation. It allows to make an explicit distinction between within-group and outside-group deviation options. This … the bargaining set containing a minimal winning coalition are characterized. Furthermore, it is shown that the bargaining … set of any homogeneous weighted majority game contains an outcome for which the underlying coalition structure consists of …

We study coalitional stability in matching problems with externalities, including marriage markets, roommate problems … deviation, the social connectedness of those that can react to it, and the incidence of externalities in preferences. At the …

. In particular, it is equivalent to the set of perfectly coalition-proof Nash equilibria (Bernheim, Peleg, and Whinston …