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来源类型Working Paper
规范类型报告
DOI10.3386/w16518
来源IDWorking Paper 16518
Is Poor Fitness Contagious? Evidence from Randomly Assigned Friends
Scott E. Carrell; Mark Hoekstra; James E. West
发表日期2010-11-04
出版年2010
语种英语
摘要The increase in obesity over the past thirty years has led researchers to investigate the role of social networks as a contributing factor. However, several challenges make it difficult to demonstrate a causal link between friends' physical fitness and own fitness using observational data. To overcome these problems, we exploit data from a unique setting in which individuals are randomly assigned to peer groups. We find statistically significant peer effects that are 40 to 70 percent as large as the own effect of prior fitness scores on current fitness outcomes. Evidence suggests that the effects are caused primarily by friends who were the least fit, thus supporting the provocative notion that poor physical fitness spreads on a person-to-person basis.
主题Health, Education, and Welfare ; Health ; Education ; Other ; Culture
URLhttps://www.nber.org/papers/w16518
来源智库National Bureau of Economic Research (United States)
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资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/574193
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GB/T 7714
Scott E. Carrell,Mark Hoekstra,James E. West. Is Poor Fitness Contagious? Evidence from Randomly Assigned Friends. 2010.
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