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 …

efficacy of a social-network based signaling mechanism. Simulation demonstrates that trust and common assumptions about social …

of network formation …

, learning and diffusion, and network games. I also include some background on social network characteristics and measurements …, models of network formation, models for the statistical analysis of social networks, as well as community detection. …

: the first application uses a sequential network of communications among managers involved in new product development … activities, and the second uses an online collaborative social network of musicians. The authors' applications demonstrate the …