Template-Type: ReDIF-Paper 1.0 Series: Tinbergen Institute Discussion Papers Creation-Date: 2012-03-01 Number: 12-019/1 Author-Name: Pascal Billand Author-Workplace-Name: Universite de Lyon, Universite Jean Monnet, Saint-Etienne, CNRS, GATE Author-Name: Christophe Bravard Author-Workplace-Name: Universite de Lyon, Universite Jean Monnet, Saint-Etienne, CNRS, GATE Author-Name: Jurjen Kamphorst Author-Workplace-Name: Erasmus University Rotterdam Author-Name: Sudipta Sarangi Author-Workplace-Name: DIW Berlin and Louisiana State University Title: Confirming Information Flows in Networks Abstract: Social networks, be it on the internet or in real life, facilitate information flows. We model this by giving agents incentives to link with others and receive information through those links. In many networks agents will value confirmation of the information they receive from others. Our paper analyzes the impact such a need for confirmation has on the social networks which are formed. We first study the existence of Nash equilibria and then characterize the set of strict Nash networks. Next, we characterize the set of strictly efficient networks and discuss the relationship between strictly efficient networks and strict Nash networks. Classification-JEL: C72, D85 Keywords: connections model, confirmation, two-way flow models File-Url: https://papers.tinbergen.nl/12019.pdf File-Format: application/pdf File-Size: 450864 bytes Handle: RePEc:tin:wpaper:20120019