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No Evidence of Food or Alcohol Substitution in Response to a Sweetened Beverage Tax

Published:December 19, 2020DOI:https://doi.org/10.1016/j.amepre.2020.08.021

      Introduction

      Evidence suggests real-world beverage taxes reduce sweetened beverage purchases, but it is unknown if consumers consequently increase food or alcohol purchases. This study examines whether Philadelphia's 1.5 cents/ounce beverage tax was associated with substitution to 3 kinds of hypothesized substitutes: snacks, nontaxed beverage concentrates, and alcohol.

      Methods

      Using commercial retail sales data and a difference-in-differences approach, analyses compared logged volume and dollar sales of snacks and beverage concentrates between 2016 (pretax) and 2017 (post-tax) at chain food retail stores in Philadelphia (n=180) and Baltimore (nontaxed control city; n=60), and logged volume and dollar sales of wine and spirits at liquor stores in Philadelphia (n=44) and nearby Pennsylvania counties (alternate control; n=66). Additional food analyses examined change in logged volume sales of hypothesized products compared to control products (other foods). Analyses were conducted in 2020.

      Results

      Across store types, analyses showed no statistically significant increases in logged volume or dollar sales of snacks or spirits in Philadelphia stores compared to control sites (decreased, ranging from −10% to 0%). Supermarket analyses showed substitution to nontaxed beverage concentrates (27% increase in volume, 36% increase relative to other food) but remained a relatively small percentage of overall beverage dollar sales (12% at baseline, 15% at post).

      Conclusions

      At the population level, there is no evidence that Philadelphia's decline in taxed beverage purchases is offset by increases in snacks or spirits purchasing, but there is evidence of substitution to beverage concentrates in supermarkets. Future studies should explore individual-level purchasing changes.
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      REFERENCES

        • Hu FB.
        Resolved: there is sufficient scientific evidence that decreasing sugar-sweetened beverage consumption will reduce the prevalence of obesity and obesity-related diseases.
        Obes Rev. 2013; 14: 606-619
        • Dong D
        • Bilger M
        • van Dam RM
        • Finkelstein EA
        Consumption of specific foods and beverages and excess weight gain among children and adolescents.
        Health Aff (Millwood). 2015; 34: 1940-1948
        • Malik VS
        • Willett WC
        • Hu FB
        Sugar-sweetened beverages and BMI in children and adolescents: reanalyses of a meta-analysis.
        Am J Clin Nutr. 2009; 89 (; author reply 439): 438-439
        • Ludwig DS
        • Peterson KE
        • Gortmaker SL
        Relation between consumption of sugar-sweetened drinks and childhood obesity: a prospective, observational analysis.
        Lancet. 2001; 357: 505-508
        • Ebbeling CB
        • Feldman HA
        • Chomitz VR
        • et al.
        A randomized trial of sugar-sweetened beverages and adolescent body weight.
        N Engl J Med. 2012; 367: 1407-1416
        • Silver LD
        • Ng SW
        • Ryan-Ibarra S
        • et al.
        Changes in prices, sales, consumer spending, and beverage consumption one year after a tax on sugar-sweetened beverages in Berkeley, California, US: a before-and-after study.
        PLOS Med. 2017; 14e1002283
        • Falbe J
        • Rojas N
        • Grummon AH
        • Madsen KA
        Higher retail prices of sugar-sweetened beverages 3 months after implementation of an excise tax in Berkeley, California.
        Am J Public Health. 2015; 105: 2194-2201
        • Cawley J
        • Frisvold D
        • Hill A
        • Jones D
        Oakland's sugar-sweetened beverage tax: impacts on prices, purchases and consumption by adults and children.
        Econ Hum Biol. 2020; 37: 100865
        • Cawley J
        • Frisvold D
        • Hill A
        • Jones D
        The impact of the Philadelphia beverage tax on prices and product availability.
        J Pol Anal Manage. 2020; 39: 605-628
        • Roberto CA
        • Lawman HG
        • LeVasseur MT
        • et al.
        Association of a beverage tax on sugar-sweetened and artificially sweetened beverages with changes in beverage prices and sales at chain retailers in a large urban setting.
        JAMA. 2019; 321: 1799-1810
        • Bollinger BK
        • Sexton S
        Local excise taxes, sticky prices, and spillovers: evidence from Berkeley's soda tax.
        SSRN Journal. 2018;
        • Colchero MA
        • Salgado JC
        • Unar-Munguía M
        • Molina M
        • Ng S
        • Rivera-Dommarco JA
        Changes in prices after an excise tax to sweetened sugar beverages was implemented in Mexico: evidence from urban areas.
        PLOS ONE. 2015; 10e0144408
        • Cawley J
        • Crain C
        • Frisvold D
        • Jones D
        The Pass-Through of the Largest Tax on Sugar-Sweetened Beverages: the Case of Boulder, Colorado. NBER Work Pap Ser. Cambridge, MA: National Bureau of Economic Research.
        2018: 250250
        • Rojas C
        • Wang EY.
        Do taxes for soda and sugary drinks work? Scanner data evidence from Berkeley and Washington.
        SSRN Journal. 2017;
        • Colchero MA
        • Rivera-Dommarco J
        • Popkin BM
        • Ng SW
        In Mexico, evidence of sustained consumer response two years after implementing a sugar-sweetened beverage tax.
        Health Aff (Millwood). 2017; 36: 564-571
        • Cawley J
        • Frisvold D
        • Hill A
        • Jones D
        The impact of the Philadelphia beverage tax on purchases and consumption by adults and children.
        J Health Econ. 2019; 67102225
        • Cawley J
        • Frisvold D
        • Jones D
        The Impact of Sugar-Sweetened Beverage Taxes on Purchases: Evidence From Four City-Level Taxes in the U.S. NBER Work Pap Ser. Cambridge, MA: National Bureau of Economic Research;.
        2019: 26393
        • Lee MM
        • Falbe J
        • Schillinger D
        • Basu S
        • McCulloch CE
        • Madsen KA
        Sugar-sweetened beverage consumption 3 years after the Berkeley, California, sugar-sweetened beverage tax.
        Am J Public Health. 2019; 109: 637-639
        • Zhong Y
        • Auchincloss AH
        • Lee BK
        • Kanter GP
        The short-term impacts of the Philadelphia beverage tax on beverage consumption.
        Am J Prev Med. 2018; 55: 26-34
        • Dunford EK
        • Popkin BM
        • Ng SW
        Recent trends in junk food intake in U.S. children and adolescents, 2003–2016.
        Am J Prev Med. 2020; 59: 49-58
      1. Compare Tax policies. Healthy food America. http://www.healthyfoodamerica.org/compare_tax_policies. Accessed May 20, 2020.

        • Quirmbach D
        • Cornelsen L
        • Jebb SA
        • Marteau T
        • Smith R
        Effect of increasing the price of sugar-sweetened beverages on alcoholic beverage purchases: an economic analysis of sales data.
        J Epidemiol Community Health. 2018; 72: 324-330
        • Finkelstein EA
        • Zhen C
        • Bilger M
        • Nonnemaker J
        • Farooqui AM
        • Todd JE
        Implications of a sugar-sweetened beverage (SSB) tax when substitutions to non-beverage items are considered.
        J Health Econ. 2013; 32: 219-239
        • Allcott H
        • Lockwood BB
        • Taubinsky D
        Regressive sin taxes, with an application to the optimal soda tax.
        Q J Econ. 2019; 134: 1557-1626
        • Colchero MA
        • Salgado JC
        • Unar-Munguía M
        • Hernández-Ávila M
        • Rivera-Dommarco JA
        Price elasticity of the demand for sugar sweetened beverages and soft drinks in Mexico.
        Econ Hum Biol. 2015; 19: 129-137
        • Zhen C
        • Finkelstein EA
        • Nonnemaker J
        • Karns S
        • Todd JE
        Predicting the effects of sugar-sweetened beverage taxes on food and beverage demand in a large demand system.
        Am J Agric Econ. 2014; 96: 1-25
        • Waterlander WE
        • Ni Mhurchu C
        • Steenhuis IHM
        Effects of a price increase on purchases of sugar sweetened beverages. Results from a randomized controlled trial.
        Appetite. 2014; 78: 32-39
      2. U.S. Census Bureau. QuickFacts. https://www.census.gov/quickfacts/philadelphiacountypennsylvania. Published 2017. Accessed February 15, 2019.

        • Wooldridge JM
        Pooling cross sections across time: simple panel data methods.
        in: Wooldridge JM Introductory Econometrics: A Modern Approach. Nelson Education, 2016: 448‒483
        • Long MW
        • Gortmaker SL
        • Ward ZJ
        • et al.
        Cost effectiveness of a sugar-sweetened beverage excise tax in the U.S.
        Am J Prev Med. 2015; 49: 112-123
        • Wang YC
        • Coxson P
        • Shen YM
        • Goldman L
        • Bibbins-Domingo K
        A penny-per-ounce tax on sugar-sweetened beverages would cut health and cost burdens of diabetes.
        Health Aff (Millwood). 2012; 31: 199-207