de Marti, Joan; Zenou, Yves - Institutet för Näringslivsforskning (IFN) - 2009
network formation. While the physics/applied mathematics approach is capable of reproducing most observed networks, it does …We survey the literature on social networks by putting together the economics, sociological and physics … not explain why they emerge. On the contrary, the economics approach is very precise in explaining why networks emerge but …