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Strategies in Social Network Formation

Author

Listed:
  • Anna Conte

    (Max-Planck-Institut für Ökonomik)

  • Daniela Di Cagno

    (LUISS Guido Carli)

  • Emanuela Sciubba

    (Birkbeck College)

Abstract

We run a computerised experiment of network formation where all connections are beneficial and only direct links are costly. Players simultaneously submit link proposals; a connection is made only when both players involved agree. We use both simulated and experimentally generated data to test the determinants of individual behaviour in network formation. We find that approximately 40% of the network formation strategies adopted by the experimental subjects can be accounted for as best responses. We test whether subjects follow alternative patterns of behaviour and in particular if they: propose links to those from whom they have received link proposals in the previous round; propose links to those who have the largest number of direct connections. We find that together with best response behaviour, these strategies explain approximately 75% of the observed choices. We estimate individual propensities to adopt each of these strategies, controlling for group effects. Finally we estimate a mixture model to highlight the proportion of each type of decision maker in the population.

Suggested Citation

  • Anna Conte & Daniela Di Cagno & Emanuela Sciubba, 2009. "Strategies in Social Network Formation," Jena Economic Research Papers 2009-095, Friedrich-Schiller-University Jena.
  • Handle: RePEc:jrp:jrpwrp:2009-095
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    Cited by:

    1. 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.
    2. Anna Conte & Peter Moffatt, 2014. "The econometric modelling of social preferences," Theory and Decision, Springer, vol. 76(1), pages 119-145, January.
    3. A. Stefano Caria & Marcel Fafchamps, 2015. "Can Farmers Create Efficient Information Networks? Experimental Evidence from Rural India," CSAE Working Paper Series 2015-07, Centre for the Study of African Economies, University of Oxford.
    4. Caria, Antonia Stefano & Hassen, Ibrahim Worku, 2013. "The formation of job referral networks: Experimental evidence from ubran Ethiopia:," IFPRI discussion papers 1282, International Food Policy Research Institute (IFPRI).
    5. Margherita Comola & Marcel Fafchamps, 2015. "An Experimental Study of Decentralized Link Formation with Competition," NBER Working Papers 21758, National Bureau of Economic Research, Inc.
    6. Mario Maggioni & Teodora Uberti, 2011. "Networks and geography in the economics of knowledge flows," Quality & Quantity: International Journal of Methodology, Springer, vol. 45(5), pages 1031-1051, August.
    7. Cicognani, Simona & Mittone, Luigi, 2014. "Over-confidence and low-cost heuristics: An experimental investigation of choice behavior," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 8, pages 1-31.

    More about this item

    Keywords

    network formation; experiments; mixture models;

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