We analyze a model of network formation with agents that belong to different communities and an endogenous cost … connection decrease with distance in the network, while the cost of a link depends on the type of agents involved in it as well … individual positions in the network. We derive a number of results with regard to equilibrium networks: (i) socialization among …

explanation of this phenomenon. But the main equilibrium network of their model does not display a basic empirical regularity: the …

In a social network, agents have their own reference group that may influence their behavior. In turn, the agents …' attributes and their behavior affect the formation and the structure of the social network. We survey the econometric literature …

In a social network, agents have their own reference group which may influence their behaviour. In turn, the agents …' attributes and their behaviour affect the formation and the structure of the social network. This paper surveys the econometric …

structural variations in networks, including differences in the motivations behind network formation; the subsequent development … of networks, including extension, contraction and duration; and the effects of individual decision-makers on network … dynamics and, at the same time, the effects of network structure and dynamics on individual decision-makers. …

The object of this paper is to discuss on-line intermediation from the perspective of two-sided markets. It builds a … simple model of the intermediation activity when trading partners are involved in a commercial relationship and uses it to … part concentrates on a monopoly intermediation service and discusses both efficient pricing and monopoly pricing. The …

This paper develops a model of noncooperative network formation. Link formation is two-sided. Information flow is two … networks do not exist under some parameters. Since disconnectedness is reminiscent of a common feature of real-world network …

network formation. While the physics/applied mathematics approach is capable of reproducing most observed networks, it does …

This paper studies the properties of convexity (concavity) and strategic complements (substitutes) in network formation … shown that there always exists a pairwise stable network as long as the utility function of each player satisfies convexity … in own links and strategic complements. For network societies with a profile of utility functions satisfying concavity in …