We provide an overview on networks in economics. We first look at the theoretical aspects of network economics using a … game-theoretical approach. We derive some results on games on networks and network formation. We also study what happens … empirical-relevant questions by mainly focusing on labor-market networks and crime networks. We provide some empirical evidence …

We survey the literature on social networks by putting together the economics, sociological and physics … network formation. While the physics/applied mathematics approach is capable of reproducing most observed networks, it does … not explain why they emerge. On the contrary, the economics approach is very precise in explaining why networks emerge but …

individual positions in the network. We derive a number of results with regard to equilibrium networks: (i) socialization among … can arise for a wide range of parameters; (iii) integrated networks can be socially preferable to segregated networks. …

real-world networks. We also find that there exists a sharp transition in efficiency and network density from highly …In order to understand the different characteristics observed in real-world networks, one needs to analyze how and why … networks form, the impact of network structure on agents' outcomes, and the evolution of networks over time. For this purpose …

transition from dissortative to assortative networks. This effect can shed light on the distinction between technological and … social networks as it gives a simple mechanism explaining how and why this transition occurs. …

We develop a dynamic network formation model that can explain the observed nestedness in real-world networks. Links are … identify the networks to which the network formation process converges and find that they are nested split graphs. We … completely determine the topological properties of the stochastically stable networks and show that they match features exhibited …

This paper studies whether structural properties of friendship networks affect individual outcomes in education. We … adolescent friendship networks. We show that, after controlling for observable individual characteristics and unobservable …

literature on social networks. This Bonacich-Nash linkage implies that aggregate equilibrium increases with network size and …