Heterogeneous Behavior, Obesity, and Storability in the Demand for Soft Drinks

Emily Wang, Christian Rojas and Francesca Colantuoni

American Journal of Agricultural Economics, 2017, vol. 99, issue 1, 18-33

Abstract: We apply a dynamic estimation procedure to investigate the effect of obesity on the demand for soda. The dynamic model accounts for consumers’ storing behavior, and allows us to study soda consumers’ price sensitivity (how responsive consumers are to the overall price) and sale sensitivity (the fraction of consumers that store soda during temporary price reductions). By matching store-level purchase data to county-level data on obesity incidence, we find higher sale sensitivity in populations with higher obesity rates. Conversely, we find that storers are less price sensitive than non-storers, and that their price sensitivity decreases with the obesity rate. Our results suggest that policies aimed at increasing soda prices might be less effective than previously thought, especially in areas where consumers can counteract that price increase by stockpiling during sale periods; according to our results, this dampening effect would be more pronounced precisely in those areas with higher obesity rates.

Keywords: Storability; soda; obesity; demand; sales (search for similar items in EconPapers)
JEL-codes: D12 I18 L66 (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:oup:ajagec:v:99:y:2017:i:1:p:18-33.

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