Peer effects and social networks in education

Antoni Calvó-Armengol, Eleonora Patacchini, Yves Zenou

    Research output: Contribution to journalArticleResearchpeer-review

    300 Citations (Scopus)


    We develop a model that shows that, at the Nash equilibrium, the outcome of each individual embedded in a network is proportional to his/her Katz-Bonacich centrality measure. This measure takes into account both direct and indirect friends of each individual, but puts less weight to his/her distant friends. We then bring the model to the data using a very detailed dataset of adolescent friendship networks. We show that, after controlling for observable individual characteristics and unobservable network specific factors, a standard deviation increase in the Katz-Bonacich centrality increases the pupil school performance by more than 7% of one standard deviation. © 2009 The Review of Economic Studies Limited.
    Original languageEnglish
    Pages (from-to)1239-1267
    JournalReview of Economic Studies
    Issue number4
    Publication statusPublished - 17 Sep 2009


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