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What you eat is how many you are

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  • Ivar Ekeland

    (Ivar Ekeland is at the University of Paris-Dauphine)

Abstract

How do people make decisions? A standard answer (not the only one) runs as follows: every individual first ranks all alternatives open to them, and then chooses the top of the list. This model had not been validated by econometric studies, but now a simple realization has changed that situation: two people don't act the same way as one. Indeed, the buying patterns of couples conform toentirely different sets of equations.

Suggested Citation

  • Ivar Ekeland, 1997. "What you eat is how many you are," Nature, Nature, vol. 389(6646), pages 16-17, September.
    • Handle: RePEc:nat:nature:v:389:y:1997:i:6646:d:10.1038_37867
    DOI: 10.1038/37867
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