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Obesity
Scientists at Yale University publish research in obesity
December 2nd, 2008
According to a study from the United States, "This note's aim is to investigate the sensitivity of Christakis and Fowler's claim [Christakis, N., Fowler, J., 2007. The spread of obesity in a large social network over 32 years. The New U.K." "Journal of Medicine 357, 370-379] that obesity has spread through Social networks. It is well known in the economics literature that failure to include contextual effects can lead 10 spurious inference on ''social network effects.'' We replicate the NEJM results using their specification and a complementary dataset. We find that point estimates of the ''social network effect'' are reduced and become statistically indistinguishable...
Source: TB & Outbreaks Week (2008-12-02)
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