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 …

own experimentation, so total information decreases with network density; we determine density thresholds below which … agents asymptotically learn the state. In contrast, agent welfare is single-peaked in network density, and achieves a second …

We develop a network model whose links are governed by banks' optmizing decisions and by an endogenous tâtonnement … evolution of the network configuration under various prudential policy regimes, to measure banks' contribution to systemic risk …

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 …

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 …

This paper provides a game-theoretic model of network formation with a continuous effort choice. Efforts are strategic … complements for direct neighbors in the network and display global substitution/congestion effects. We show that if the parameter … links according to a network cost function. Again all socially optimal configurations are such that the network is a nested …

By design, the Bitcoin protocol has a low throughput. The Lightning Network (LN) is a layer-two solution built to … group of nodes. The paper also evaluates the efficiency of a global configuration, obtaining bounds on the cost of the cost …

real-world networks. We also find that there exists a sharp transition in efficiency and network density from highly … networks form, the impact of network structure on agents' outcomes, and the evolution of networks over time. For this purpose …, we combine a network game introduced by Ballester et al. [2006], where the Nash equilibrium action of each agent is …

if the network is 2-connected: that is, if no player can prevent the flow of information to another. In contrast, the …