neighbors in the social network. The same activities often exert externalities that cumulate in "stocks" affecting agents … network of social relations, as agents display strategic substitution with distance-two neighbors. We show that behavior is … behavior and key-players tend to move to the periphery of the network, and we discuss the effect of close-knit communities and …

This paper proposes new centrality measures to characterise the 'key class', when agents in a network are sorted into … role-equivalent classes, such that its removal results in an optimal change in the network activity. The notion of role … theoretical applicability. Players in the network engage in a non-cooperative game with local payoff complementarities. We …

Network structure has a significant role in determining the outcomes of many socioeconomic relationships, including the … antagonistic ones. In this paper we study a situation in which agents, embedded in a network, simultaneously play interrelated … bilateral contest games with their neighbors. Interrelatedness of contests induces complex local and global network effects. We …

in the context of a network formation game (where links can be interpreted as friendships in a social network … acquiring the information with others) through a percolation process over the equilibrium network. Privacy concerns are modeled …

that the individual's incentives depend on the architecture of the network as well as on the position of the individual … within the network. In particular, when an efficient interaction requires players to mutually cooperate, efficient social …

We introduce a simple two-stage game of endogenous network formation and information sharing for reasoning about the … then we study how the network design and the utility specifications affect welfare. Surprisingly, we find that in general … "babblers" or "friends", irrespective of whether the network is unilateral or bilateral, in equilibrium, targeted information …

In this paper we introduce a stochastic network formation model where agents choose both actions and links. Neighbors … in the network benefit from each other's action levels through local complementarities and there exists a global …

networks. We varied the network structure, the relative influence of the opponent, and the heterogeneity of the nodes' initial …