Having the wrong friends? Peer effects in adolescent substance use
Having the wrong friends? Peer effects in adolescent substance use
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DOI：
10.1016/j.jhealeco.2005.02.001
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发表时间：
2006-03-01
影响因子：
3.5
通讯作者：
Lundborg, P
中科院分区：
文献类型：
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作者：
Lundborg, P
瑞典针对 12 至 18 岁年轻人的横断面调查数据被用来分析学校班级同伴在酗酒、吸烟和非法药物使用方面的影响。所有三项活动都发现了显着且积极的同伴效应。通过引入学校/年级固定效应，估计的同伴效应是通过学校和年级内各班级同伴行为的变化来确定的，这意味着估计值不会因学校间学生的内生分类而出现偏差。此外，由于同伴效应的双向性，暴饮暴食和吸烟导致了内生性偏差。控制这种内生性来源会产生更强的同伴效应。 (c) 2005 Elsevier B.V. 保留所有权利。
Swedish cross-sectional survey data on young individuals aged 12-18-year-old was used to analyse school-class based peer effects in binge drinking, smoking and illicit-drug use. Significant and positive peer effects were found for all three activities. By introducing school/grade fixed effects, the estimated peer effects were identified by variation in peer behaviour across school-classes within schools and grades, implying that estimates were not biased due to endogenous sorting of students across schools. Further, endogeneity bias due to bi-directionality of peer effects was found for binge drinking and smoking. Controlling for this source of endogeneity resulted in even stronger peer effects. (c) 2005 Elsevier B.V. All rights reserved.