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American Economic Journal: Applied Economics: Vol. 2 No. 2 (April 2010)
AEJ: Applied Volume. 2, Issue 2 | 
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AEJ: Applied Forthcoming Articles
Identification of Social Interactions through Partially Overlapping Peer Groups
Article Citation
De Giorgi, Giacomo,
Michele Pellizzari, and
Silvia Redaelli. 2010. "Identification of Social Interactions through Partially Overlapping Peer Groups."
American Economic Journal: Applied Economics,
2(2): 241-75.
DOI: 10.1257/app.2.2.241
DOI: 10.1257/app.2.2.241
Abstract
In this paper, we demonstrate that, in a context where peer groups
do not overlap fully, it is possible to identify all the relevant parameters
of the standard linear-in-means model of social interactions.
We apply this novel identification structure to study peer effects in
the choice of college major. Results show that one is more likely
to choose a major when many of her peers make the same choice.
We also show that peers can divert students from majors in which
they have a relative ability advantage, with adverse consequences
on academic performance, entry wages, and job satisfaction. (JEL
I23, J24, J31, Z13)
Article Full-Text Access
Full-text Article
Additional Materials
Download Data Set (65.84 KB) | Appendix (164.18 KB)
Authors
De Giorgi, Giacomo (Stanford U)
Pellizzari, Michele (Bocconi U and IGIER)
Redaelli, Silvia (Bocconi U)
Pellizzari, Michele (Bocconi U and IGIER)
Redaelli, Silvia (Bocconi U)
JEL Classifications
I23: Higher Education and Research Institutions
J24: Human Capital; Skills; Occupational Choice; Labor Productivity
J31: Wage Level and Structure; Wage Differentials
Z13: Economic Sociology; Economic Anthropology; Social and Economic Stratification
J24: Human Capital; Skills; Occupational Choice; Labor Productivity
J31: Wage Level and Structure; Wage Differentials
Z13: Economic Sociology; Economic Anthropology; Social and Economic Stratification
Comments
View Comments on This Article (3) | Login to post a comment
Posted By: Michele Pellizzari (Bocconi University) (Article Author)
Date: 2010-04-30 00:37:09
We post here the web appendix of the paper and the latest version of the slide presentation.
Web appendix
Slides for presentation