The Effect of Social Networks on Students' Academic and Non-cognitive Behavioural Outcomes: Evidence from Conditional Random Assignment of Friends in School

Victor Lavy and Edith Sand ()

The Economic Journal, 2019, vol. 129, issue 617, 439-480

Abstract: We investigate the impacts of separating students in Israel from pre-existing social relationships during the transition from elementary to middle school on their academic progress. We define several types of friendships using students' self-defined friendship nomination and rely for identification on the random assignment of students to classes within a given school. Our results suggest that the number of friends has positive or negative effects on students' educational outcomes, depending on the type of and on friends' socio-economic background. These gains might be partly mediated through greater cooperation, reduction in violent behaviour and improvements in social satisfaction in class.

Date: 2019
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