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 … results that relate situations of positive externalities with stable networks that cannot be 'too dense' in a well …

and the implications for the structure of pairwise stable networks. First, different definitions of convexity (concavity … own links and strategic complements, a local uniqueness property of pairwise stable networks is derived. The results do …

It is impossible, in general, to extend an asymmetric two-player game to networks, because there must be two …

This paper studies strategic interaction in networks. We focus on games of strategic substitutes and strategic …

, pairwise-Nash and proper equilibrium networks coincide, where pairwise stable networks are robust to one-link deviations, while … pairwise-Nash networks are robust to one-link creation but multi-link severance. Under these conditions, proper equilibria in …

in endogenously formed networks. …

In this chapter, I provide an overview of research on social networks and their role in shaping behavior and economic … outcomes. I include discussion of empirical and theoretical analyses of the role of social networks in markets and exchange …, models of network formation, models for the statistical analysis of social networks, as well as community detection. …

We study the structure of pairwise stable networks from a very general point. Rather than assuming a particular … empty or complete network are always pairwise stable, stable symmetric networks exist, or stable networks with a connected … networks: they are nested split graphs (NSG). We illustrate these results with many examples from the literature, including …