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How individual characteristics shape the structure of social networks

Author

Listed:
  • Yann Girard

    (GSEFM, Goethe University Frankfurt, Germany)

  • Florian Hett

    (GSEFM, Goethe University Frankfurt, Germany)

  • Daniel Schunk

    (Department of Economics, Johannes Gutenberg-Universitaet Mainz, Germany)

Abstract

We study how students’ social networks emerge by documenting systematic patterns in the process of friendship formation of incoming students; these students all start out in a new environment and thus jointly create a new social network. As a specific novelty, we consider cooperativeness, time and risk preferences - elicited experimentally - together with factors like socioeconomic and personality characteristics. We find a number of robust predictors of link formation and of the position within the social network (local and global network centrality). In particular, cooperativeness has a complex association with link formation. We also find evidence for homophily along several dimensions. Finally, our results show that despite these systematic patterns, social network structures can be exogenously manipulated, as we find that random assignments of students to groups on the first two days of university impacts the students’ friendship formation process.

Suggested Citation

  • Yann Girard & Florian Hett & Daniel Schunk, 2014. "How individual characteristics shape the structure of social networks," Working Papers 1414, Gutenberg School of Management and Economics, Johannes Gutenberg-Universität Mainz, revised 17 Nov 2014.
  • Handle: RePEc:jgu:wpaper:1414
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    Cited by:

    1. Bhargava, Palaash & Chen, Daniel L. & Sutter, Matthias & Terrier, Camille, 2022. "Homophily and Transmission of Behavioral Traits in Social Networks," IZA Discussion Papers 15840, Institute of Labor Economics (IZA).
    2. Hett, Florian & Kröll, Markus & Mechtel, Mario, 2017. "Choosing Who You Are: The Structure and Behavioral Effects of Revealed Identification Preferences," VfS Annual Conference 2017 (Vienna): Alternative Structures for Money and Banking 168223, Verein für Socialpolitik / German Economic Association.
    3. Xu, Dafeng, 2017. "Acculturational homophily," Economics of Education Review, Elsevier, vol. 59(C), pages 29-42.
    4. Charroin, Liza, 2023. "Heterogeneity in sequential network formation games," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 107(C).
    5. Li, Jianwen & Zhang, Bo & Jiang, Mingming & Hu, Jinyan, 2023. "Homophilous intensity in the online lending market: Bidding behavior and economic effects," Journal of Banking & Finance, Elsevier, vol. 152(C).
    6. Yonas Alem & Martin G. Kocher & Simon Schürz & Fredrik Carlsson & Mikael Lindahl, 2023. "Distributional preferences in adolescent peer networks," Experimental Economics, Springer;Economic Science Association, vol. 26(1), pages 223-248, March.
    7. Pablo Brañas-Garza & Lorenzo Ductor & Jaromir Kovarik, 2022. "The role of unobservable characteristics in friendship network formation," ThE Papers 22/08, Department of Economic Theory and Economic History of the University of Granada..
    8. Chadi, Adrian & de Pinto, Marco & Schultze, Gabriel, 2019. "Young, gifted and lazy? The role of ability and labor market prospects in student effort decisions," Economics of Education Review, Elsevier, vol. 72(C), pages 66-79.
    9. Florian Hett & Markus Kröll & Mario Mechtel, 2019. "Choosing Who You Are: The Structure and Behavioral Effects of Revealed Identification Preferences," Working Papers 1903, Gutenberg School of Management and Economics, Johannes Gutenberg-Universität Mainz.
    10. Grilli, Luca & Murtinu, Samuele, 2018. "Selective subsidies, entrepreneurial founders' human capital, and access to R&D alliances," Research Policy, Elsevier, vol. 47(10), pages 1945-1963.
    11. Sule Alan & Elif Bodur & Elif Kubilay & Ipek Mumcu, 2021. "Social Status in Student Networks and Implications for Perceived Social Climate in Schools," CESifo Working Paper Series 9095, CESifo.
    12. Dinarte Diaz,Lelys Ileana, 2020. "Peer Effects on Violence : Experimental Evidence from El Salvador," Policy Research Working Paper Series 9187, The World Bank.

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    More about this item

    Keywords

    Social networks; education; link formation; homophily; cooperation; field and lab data;
    All these keywords.

    JEL classification:

    • C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • I25 - Health, Education, and Welfare - - Education - - - Education and Economic Development
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity

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