Dynamics of the Global Nutrition Transition • Barry M. Popkin, University of North Carolina at Chapel Hill

Obesity in the U.S.: Trends and Competing Explanations • Diane S. Lauderdale, University of Chicago

Unequally Obese: Individual- and Area-Level Associations with Income • Virginia W. Chang, University of Pennsylvania

WHO says Obesity is an Epidemic? How Excess Weight Became a Public Health Crisis • Hanna Grol-Prokopczyk, University of Wisconsin at Madison