Coordination and contagion: Individual connections and peer mechanisms in a randomized field experiment
成果类型：
Article
署名作者：
Babcock, Philip; Bedard, Kelly; Fischer, Stefanie; Hartman, John
署名单位：
University of California System; University of California Santa Barbara; National Bureau of Economic Research; IZA Institute Labor Economics; California State University System; California Polytechnic State University San Luis Obispo
刊物名称：
JOURNAL OF PUBLIC ECONOMICS
ISSN/ISSBN：
0047-2727
DOI：
10.1016/j.jpubeco.2019.104069
发表日期：
2020
关键词：
摘要：
This paper investigates peer effects al the level of individual connections, leveraging the approach to shed light on peer mechanisms. In a field experiment using college freshmen, we elicited best friends and offered monetary incentives for gym visits to a treated subset. We find large spillovers from treated subjects to treated best friends but none from treated subjects to control best friends. We also find evidence of a mechanism: Subjects coordinate by visiting the gym with best friends, indicating that the intervention harnesses complementarities in utility or commitment mechanisms. Results highlight subtle peer effects and mechanisms that often go undetected. (C) 2019 Elsevier B.V. All rights reserved.
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