Unraveling Peers and Peer Effects: Comments on Goldsmith-Pinkham and Imbens’ “Social Networks and the Identification of Peer Effects”
نویسنده
چکیده
Understanding peer effects is of first order importance in a range of settings including education, labor markets, crime, voting, and consumer behavior. However, although casual introspection and some field experiments (e.g., Duflo and Saez (2003); Centola (2010)) suggest that the influence of friends and acquaintances on behavior can be substantial, there are formidable challenges in establishing peer effects using (increasingly available) purely observational data that couple behaviors with social relationships. The challenges in establishing that peer effects are truly present include:
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