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Have soda sales tax effects changed over time? Scanner data comparison analyses

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  • Colantuoni, Francesca
  • Rojas, Christian

Abstract

The scientific evidence on the effect of sugar consumption on obesity has propelled policy makers in several states across the U.S. to propose the imposition of a tax on soft drinks. In this paper, we look at the effect of two tax events: a 5.5% sales tax on soft drinks imposed by the state of Maine in 1991, and a 5% sales tax on soft drinks levied in Ohio in 2003. We investigate this question by using sales data collected by scanner devices in Maine, Massachusetts, New York and Connecticut, as well as Ohio, Illinois, Michigan and Pennsylvania. These samples comprise stores that account for more than 80% of all grocery sales nationwide and include brand-level sales data for the periods of study. We employ a difference-in-difference matching estimator (DIDM) that, in our setting, permits the comparison among treatment and control groups based on brand identity. Results suggest that sales tax had a statistically insignificant impact on the overall consumption of soft drinks. This finding is robust to several alternative specifications, and over time.

Suggested Citation

  • Colantuoni, Francesca & Rojas, Christian, 2012. "Have soda sales tax effects changed over time? Scanner data comparison analyses," 2012 Annual Meeting, August 12-14, 2012, Seattle, Washington 124806, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea12:124806
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    File URL: http://purl.umn.edu/124806
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    1. Smith, Patricia K. & Bogin, Barry & Bishai, David, 2005. "Are time preference and body mass index associated?: Evidence from the National Longitudinal Survey of Youth," Economics & Human Biology, Elsevier, vol. 3(2), pages 259-270, July.
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    5. Lin, Biing-Hwan & Smith, Travis A. & Lee, Jonq-Ying, 2010. "The Effects of a Sugar-Sweetened Beverage Tax: Consumption, Calorie Intake, Obesity, and Tax Burden by Income," 2010 Annual Meeting, July 25-27, 2010, Denver, Colorado 61167, Agricultural and Applied Economics Association.
    6. Smith, Travis A. & Biing-Hwan, Lin & Lee, Jonq-Ying, 2010. "Taxing Caloric Sweetened Beverages: Potential Effects on Beverage Consumption, Calorie Intake, and Obesity," Economic Research Report 95465, United States Department of Agriculture, Economic Research Service.
    7. repec:aph:ajpbhl:10.2105/ajph.2005.083782_8 is not listed on IDEAS
    8. John Cawley, 2004. "The Impact of Obesity on Wages," Journal of Human Resources, University of Wisconsin Press, vol. 39(2).
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    Keywords

    Consumer/Household Economics; Demand and Price Analysis;

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