We examine the formation of networks among a set of players whose payoffs depend on the structure of the network. We … links. We characterize the networks that are supported under these variations and show how each of the above aspects is …

alternative network structures (not just sub-networks) can and should influence the allocation of value among players on any given …

Since the seminal contribution of Jackson & Wolinsky 1996 [A Strategic Model of Social and Economic Networks, JET 71 …, 44-74] it has been widely acknowledged that the formation of social networks exhibits a general conflict between … general results that relate situations of positive externalities with stable networks that cannot be “too dense” in a well …

sufficient conditions for efficiency in terms of cyclical monotonicity. The n-player group version always yields efficiency. …

feasible set of networks contains a unique, finite, disjoint collection of nonempty subsets having the property that each … subset forms a strategic basin of attraction. These basins of attraction contain all the networks that are likely to emerge … refer to any such von Neumann-Morgenstern stable set as a farsighted basis. (4) The core of the farsighted network formation …

We study the stability of social and economic networks when players are farsighted. In particular, we examine whether … the networks formed by farsighted players are different from those formed by myopic players. We adopt Herings, Mauleon and … classical models of social and economic networks whether the pairwise farsightedly stable sets of networks coincide with the set …

the existence problems of stable coalition tructures. In particular, we show that contractual strictly core stable …

-emptiness of the strong core and the second domain restriction ensures non-emptiness of the weak core of the corresponding hedonic … games. Moreover, an element of the strong core under friends appreciation can be found in polynomial time, while finding an … element of the weak core under enemies aversion is NP-hard. We examine also the relationship between our domain restrictions …

and coalition formation, the preferences of individuals over networks, the strategic behavior of coalitions in forming … networks, and the trembles of nature, what network and coalitional dynamics are likely to emerge and persist. Our main … measures, and generates a finite, disjoint collection of nonempty subsets of networks and coalitions, each constituting a basin …