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Body Mass Index and Social Interactions from Adolescence to Adulthood
Joxhe, Majlinda; Corrado, Luisa; Distante, Roberta
20182018 Add Health Users Conference
 

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Keywords :
Overweight; Obesity; Peer Effects,; Social Networks; Personal History; Dynamic Linear-in-means Model
Abstract :
[en] This paper proposes a novel approach to address identi fication of social endogenous e ects by generalizing the methods commonly used in standard dynamic panel data analysis to the peer e ffects setting. Our methodology shows to can estimate peer e ects free of the \re "reflection problem" in a dynamic context where individual- and group-specifi c unobservable e ects are controlled for. We apply a dynamic linear-in-means model for analyzing the importance of social ties for the body-weight-related behavior of US youth. We show that the main drivers of body-weight-related behavior are habituation and imitation eff ects. For individuals who were normal-weight during adolescence habits seem to be slightly enforced by imitative behavior: in this instance, for an 1% increase in average BMI we expect about 0:6% increase in individual BMI, whereas the coe cient for past BMI is 0:4%. Imitation e ffects, instead, explain most of the variation in the Body Mass Index of individuals who were overweight and obese during adolescence, signaling the presence of a social multiplier e ffect: for these two groups an increase of 1% in average BMI leads, respectively, to an increase of 0:2% and 0:4% in current BMI.
Disciplines :
Special economic topics (health, labor, transportation...)
Author, co-author :
Joxhe, Majlinda ;  University of Luxembourg > Faculty of Law, Economics and Finance (FDEF) > Center for Research in Economic Analysis (CREA)
Corrado, Luisa;  University of Rome "Tor Vergata" > DEI
Distante, Roberta;  University of Copenhagen
External co-authors :
yes
Language :
English
Title :
Body Mass Index and Social Interactions from Adolescence to Adulthood
Publication date :
July 2018
Event name :
2018 Add Health Users Conference
Event organizer :
University of North Carolina
Event place :
NIH-National Institute of Health, Besethda (Washington DC), United States
Event date :
23-07-2018 to 24-07-2018
Audience :
International
Available on ORBilu :
since 19 September 2018

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