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Body image, peer effects and food disorders: evidence from a sample of European women

By Joan Costa-Font and Mireia Jofre-Bonet


Excessive preoccupation with self-image has been pinpointed as a factor contributing to the proliferation of food disorders, especially among young women. To provide an economic basis for this argument this paper models how ‘self-image’ and ‘other people’s appearance’ influence health-related behaviour. Self-image (identity) is claimed to be biased towards anorexic women by social norms and peer pressure, increasing the probability of women experiencing a food disorder. This paper empirically tests this claim using data from a representative, cross-sectional European survey for 2004. A two-step empirical strategy was used. First, the probability was estimated of a woman ‘being extremely thin’ and at the same time ‘seeing herself as too fat’. The findings revealed robust evidence suggesting that (different definitions of) peer effects average out, and that a larger peer body-mass decreases the likelihood of being anorexic. Second, the two processes were estimated separately, using a recursive system, which suggested that self-image was associated with body weight when unobservable variables explaining both processes were controlled for. (These processes were found to be positively and significantly correlated). As expected, several definitions of peers’ body mass were found to decrease the likelihood of women being thin or extremely thin, when common unobservable variables were controlled for

Topics: D901 Europe (General), RA0421 Public health. Hygiene. Preventive Medicine
Publisher: LSE Health, London School of Economics and Political Science
Year: 2009
OAI identifier:
Provided by: LSE Research Online

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  1. American Psychiatric Association, Diagnostic on Statistical Manual of Mental Disorders. doi
  2. (1988). Body image in anorexia nervosa. doi
  3. (2009). Can A Rational Choice Framework Make Sense of Anorexia Nervosa?, NBER Working Papers 14838, National Bureau of Economic Research. doi
  4. (1993). Causes and consequences of dieting and anorexia. doi
  5. (1998). Comparison-concave utility and following behaviour in social and economic settings. doi
  6. (1997). Deanne Hovde Dwyer
  7. environmental factors in the obesity epidemic,’ doi
  8. (1998). Gender Economics Courses in Liberal Arts Colleges: Further Results’, doi
  9. (1993). Identification of Endogenous Social Effects: The Reflection Problem. doi
  10. (2008). Imitative Obesity and Relative Utility. doi
  11. (2008). Is obesity contagious? Social networks vs. doi
  12. (1996). Methodological issues in assessment of the perceptual component of body image disturbance. doi
  13. (2000). Peer Effects with Random Assignment: Results for Dartmouth Roommates. Working paper 7469, NBER doi
  14. (2001). Rejection of life in anorexic and bulimic patients. doi
  15. (2007). Social Norms, Ideal Body Weight and Food Attitudes. Health Economics doi
  16. (2008). The feasibility of establishing correction factors to adjust self-reported estimates of obesity. Health Rep.
  17. (2002). The growth of obesity and technological change: a theoretical and empirical examination. doi
  18. (2002). The Media's Influence on Body Image Disturbance and Eating Disorders: We've Reviled Them, Now Can We Rehabilitate Them?, doi
  19. (2005). The Mortality Rate from Anorexia Nervosa. doi
  20. (2006). The relationship between media consumption and eating disorders, doi
  21. (2007). The Spread of Obesity in a Large Social Network over 32 Years. doi
  22. (1982). Transforming body-image: Your body, friend or foe? doi
  23. (2003). Unbearable Weight: Feminism, Western Culture, and the Body. University of California Press; 2nd revised edition.

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