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 …

generosity with a sequence of dictator games conducted in the field. We find that networks of different dimensions differ … substantially in density, clustering, and centrality. When relating generosity to networks we observe that social distance only …

We study some recent developments and challenges in the empirics of the effects of social networks. We focus in …

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 …

borne but rather develop: in treatments with a high-value agent, the network's centrality, stability, and efficiency all …-like structures in real-life social networks. …

(strict) Nash networks in the 1-way flow model but a negative impact in the 2-way flow model. In our discussion on possible …