many well-known results from the contest literature can be obtained by varying the structure of the network. Our framework …

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 …

placing its data on others’ storage devices, given the prevailing data loss rate in the network. The cost function of an agent … captures the cost that the agent incurs to maintain links in the network. With this utility function, we analyze what network … exists a pairwise stable network, which is also efficient. We show that all pairwise stable networks are efficient, and hence …

This paper presents a model of local network effects in which agents connected by a social network each value the …-Nash equilibria of this network game are in monotone strategies, can be strictly Pareto-ranked based on a scalar neighbor … which the social network is an instance of a Poisson random graph, when it is a complete graph, a standard model of network …

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 …

We study network formation with n players and link cost α > 0. After the network is built, an adversary randomly …

efficient network maximizing social welfare, and find that the efficient graph is either empty, complete or shows a strong core … counterfactual analyses, taking into account that the network and production can dynamically adjust to shocks or policy interventions ….6%. Our study further reveals that when ignoring the network structure the impact of firm exit or mergers is significantly …

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 …