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Econ Hum Biol. 2010 Mar;8(1):2-15. doi: 10.1016/j.ehb.2009.12.003. Epub 2010 Jan 4.

Incentives, time use and BMI: The roles of eating, grazing and goods.

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  • 1University of Texas at Austin, and IZA United States, USA. hamermes@eco.utexas.edu

Abstract

In the 2006-2007 American Time Use Survey and its Eating and Health Module over half of adults report grazing (secondary eating/drinking) on a typical day, with grazing time almost equaling primary eating/drinking time. An economic model predicts that higher wage rates (price of time) will lead to substitution of grazing for primary eating/drinking, especially by raising the number of grazing intervals relative to meals. This prediction is confirmed in these data. Eating meals more frequently is associated with lower BMI and better self-reported health, as is grazing more frequently. Food purchases are positively related to time spent eating-substitution of goods for time is difficult-but are lower when eating time is spread over more meals.

Copyright 2009 Elsevier B.V. All rights reserved.

PMID:
20079698
[PubMed - indexed for MEDLINE]
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