Peer Effects and Social Networks in Education

Reprint No. 2009:27

Author(s): Antoni Calvó-Armengol, Eleonora Patacchini and Yves ZenouYear: 2009 Title: Review of Economic Studies Volume (No.): 76 (269) Pages: 1239–1267
Online article (restrictions may apply)

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.

Calvó-Armengol, Antoni, Eleonora Patacchini and Yves Zenou (2009), "Peer Effects and Social Networks in Education". Review of Economic Studies 76(269), 1239–1267.

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This book explores how the European Union responds to the ongoing challenges to the liberal international order. These challenges arise both within the EU itself and beyond its borders, and put into question the values of free trade and liberal democracy. 

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