Culture | Quantitative eating

The economists’ diet

Two formerly obese economists dole out advice on slimming

Elastic demand

The Economists’ Diet: The Surprising Formula for Losing Weight and Keeping It Off. By Christopher Payne and Rob Barnett. Touchstone; 288 pages; $25.

This article appeared in the Culture section of the print edition under the headline “Quantitative eating”

The next frontier: When thoughts control machines

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