Cheap Food, Societal Norms

During the past two decades, obesity rates in the U.S. have jumped dramatically. An estimated 30% of adults over the age of 20 -- more than 60 million people -- are obese, defined as those with a body-mass index of 30 or higher.

Are economic reasons under-girding our ever-widening waistlines? The Online Journal asked academics Carol Graham, of the Brookings Institution, and Darius Lakdawalla, of the Rand Corp., to discuss their different economic takes on our burgeoning national girth.

What do you think?

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