Is poor fitness contagious?
Subtitle: evidence from randomly assigned friends
By: Scott E. Carrell, Mark Hoekstra, James E. West
Contributors: Hoekstra, Mark L.; West, James E.; National Bureau of Economic Research
Series: NBER working paper series -- working paper 16518; Working paper series (National Bureau of Economic Research : Online) -- working paper no. 16518.
Publisher: National Bureau of Economic Research
Published: 2010
Place of publication: Cambridge, MA
Language: eng
Format: [electronic resource]
Description: "The NBER Bulletin on Aging and Health provides summaries of publications like this.  You can sign up to receive the NBER Bulletin on Aging and Health by email.  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"--National Bureau of Economic Research web site.
Notes: Title from PDF file as viewed on 3/22/2011.

Includes bibliographical references.

Also available in print.

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Mode of access: World Wide Web.