S-WoPEc
 
Scandinavian Working Papers in Economics
HomeAboutSeriesSubject/JEL codesAdvanced Search
Department of Economics, Stockholm University Research Papers in Economics, Department of Economics, Stockholm University

No 2011:8:
Social Networks and Interactions in Cities

Robert Helsley () and Yves Zenou ()

Abstract: We examine how interaction choices depend on the interplay of social and physical distance, and show that agents who are more central in the social network, or are located closer to the geographic center of interaction, choose higher levels of interactions in equilibrium. As a result, the level of interactivity in the economy as a whole will rise with the density of links in the social network and with the degree to which agents are clustered in physical space. When agents can choose geographic locations, there is a tendency for those who are more central in the social network to locate closer to the interaction center, leading to a form of endogenous geographic separation based on social distance. Finally, we show that the market equilibrium is not optimal because of social externalities. We determine the value of the subsidy to interactions that could support the first-best allocation as an equilibrium and show that interaction effort and the incentives for clustering are higher under the subsidy program.

Keywords: Social networks; urban-land use; Bonacich centrality; (follow links to similar papers)

JEL-Codes: D85; R14; Z13; (follow links to similar papers)

25 pages, February 14, 2011

Before downloading any of the electronic versions below you should read our statement on copyright.
Download GhostScript for viewing Postscript files and the Acrobat Reader for viewing and printing pdf files.

Full text versions of the paper:

wp11_08.pdf    PDF-file
Download Statistics

Questions (including download problems) about the papers in this series should be directed to Sten Nyberg ()
Report other problems with accessing this service to Sune Karlsson () or Helena Lundin ().

Programing by
Design by Joachim Ekebom

Handle: RePEc:hhs:sunrpe:2011_0008 This page was generated on 2016-11-07 22:04:15