AbstractWe model the formation of friendships as repeated cooperation within a set of heterogeneous players. The model builds around three of the most important facts about friendship: friends help each other, there is reciprocity in the relationship and people usually have few friends. In our results we explain how similarity between people affects the friendship selection. We also characterize when the friendship network won’t depend on the random process by which people meet each other. Finally, we explore how players’ patience influences the length of their friendship relations. Our results match and explain empirical evidence reported in social studies on friendship. For instance, our model explains why troublesome subjects have few friends.
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Bibliographic InfoPaper provided by European University Institute in its series Economics Working Papers with number ECO2007/08.
Date of creation: 2007
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Friendship; cooperative game; grim trigger strategy; social networks;
Other versions of this item:
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
- Z13 - Other Special Topics - - Cultural Economics - - - Economic Sociology; Economic Anthropology; Social and Economic Stratification
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-06-23 (All new papers)
- NEP-CBE-2007-06-23 (Cognitive & Behavioural Economics)
- NEP-EVO-2007-06-23 (Evolutionary Economics)
- NEP-GTH-2007-06-23 (Game Theory)
- NEP-LAB-2007-06-23 (Labour Economics)
- NEP-NET-2007-06-23 (Network Economics)
- NEP-SOC-2007-06-23 (Social Norms & Social Capital)
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- Spagnolo, Giancarlo & Lippert, Steffen, 2004.
"Networks of Relations,"
Working Paper Series in Economics and Finance
570, Stockholm School of Economics, revised 03 May 2005.
- Lippert, Steffen & Spagnolo, Giancarlo, 2011. "Networks of relations and Word-of-Mouth Communication," Games and Economic Behavior, Elsevier, vol. 72(1), pages 202-217, May.
- Lippert, Steffen & Spagnolo, Giancarlo, 2005. "Networks of Relations and Social Capital," CEPR Discussion Papers 5078, C.E.P.R. Discussion Papers.
- Lippert, Steffen & Spagnolo, Giancarlo, 2004. "Networks of Relations," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 28, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
- Giancarlo Spagnolo & Steffen Lippert, 2004. "Networks of Relations," Econometric Society 2004 North American Winter Meetings 496, Econometric Society.
- Matthew O. Jackson & Asher Wolinsky, 1995.
"A Strategic Model of Social and Economic Networks,"
1098R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Goyal, Sanjeev & Vega-Redondo, Fernando, 2005.
"Network formation and social coordination,"
Games and Economic Behavior,
Elsevier, vol. 50(2), pages 178-207, February.
- Chwe, Michael Suk-Young, 2000. "Communication and Coordination in Social Networks," Review of Economic Studies, Wiley Blackwell, vol. 67(1), pages 1-16, January.
- Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
- Alexia Gaudeul & Caterina Giannetti, 2011.
"The role of reciprocation in social network formation, with an application to blogging,"
Jena Economic Research Papers
2011-015, Friedrich-Schiller-University Jena, Max-Planck-Institute of Economics.
- Alexia Gaudeul & Caterina Giannetti, 2012. "The role of reciprocation in social network formation, with an application to blogging," Jena Economic Research Papers 2012-031, Friedrich-Schiller-University Jena, Max-Planck-Institute of Economics.
- Gaudeul, Alexia & Giannetti, Caterina, 2011. "The role of reciprocation in social network formation, with an application to blogging," MPRA Paper 34094, University Library of Munich, Germany.
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