Department of Ambulatory Care and Prevention
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NBER Working Papers and Publications
|March 2007||Why Is The Developed World Obese?|
with Sara Bleich, David Cutler, Christopher Murray: w12954
Obesity has risen dramatically in the past few decades. However, the relative contribution of energy intake and energy expenditure to rising obesity is not known. Moreover, the extent to which social and economic factors tip the energy balance is not well understood. In this longitudinal analysis of developed countries, we estimate the relative contribution of increased caloric intake and reduced physical activity to obesity using two methods of energy accounting. Results show that rising obesity is primarily the result of consuming more calories. We estimate multivariate regression models and use simulation analysis to explore technological and sociodemographic determinants of this dietary excess. Results indicate that the increase in caloric intake is associated with technological innova...
Published: Posted with permission from the Annual Review of Public Health, Volume 29, copyright 2008 by Annual Reviews, www.annualreviews.org