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Multi-category competition and market power: a model of supermarket pricing

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  • Thomassen, Øyvind
  • Smith, Howard
  • Seiler, Stephan
  • Schiraldi, Pasquale

Abstract

In many competitive settings consumers buy multiple product categories, and some prefer to use a single firm, generating complementary cross-category price effects. To study pricing in supermarkets, an organizational form where these effects are internalized, we develop a multi-category multi-seller demand model and estimate it using UK consumer data. This class of model is used widely in theoretical analysis of retail pricing. We quantify crosscategory pricing effects and find that internalizing them substantially reduces market power. We find that consumers inclined to one-stop (rather than multi-stop) shopping have a greater pro-competitive impact because they generate relatively large cross-category effects

Suggested Citation

  • Thomassen, Øyvind & Smith, Howard & Seiler, Stephan & Schiraldi, Pasquale, 2017. "Multi-category competition and market power: a model of supermarket pricing," LSE Research Online Documents on Economics 69855, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:69855
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    1. Reynaert, Mathias & Verboven, Frank, 2014. "Improving the performance of random coefficients demand models: The role of optimal instruments," Journal of Econometrics, Elsevier, vol. 179(1), pages 83-98.
    2. Emi Nakamura & Dawit Zerom, 2010. "Accounting for Incomplete Pass-Through," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 77(3), pages 1192-1230.
    3. Christopher T. Conlon & Nirupama L. Rao, 2020. "Discrete Prices and the Incidence and Efficiency of Excise Taxes," American Economic Journal: Economic Policy, American Economic Association, vol. 12(4), pages 111-143, November.
    4. Natalia Fabra & Mar Reguant, 2014. "Pass-Through of Emissions Costs in Electricity Markets," American Economic Review, American Economic Association, vol. 104(9), pages 2872-2899, September.
    5. Levy, Daniel & Lee, Dongwon & Chen, Haipeng (Allan) & Kauffman, Robert J. & Bergen, Mark, 2011. "Price Points and Price Rigidity," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 93(4), pages 1417-1431.
    6. Ravi Varadhan & Christophe Roland, 2008. "Simple and Globally Convergent Methods for Accelerating the Convergence of Any EM Algorithm," Scandinavian Journal of Statistics, Danish Society for Theoretical Statistics;Finnish Statistical Society;Norwegian Statistical Association;Swedish Statistical Association, vol. 35(2), pages 335-353, June.
    7. Steven T. Berry & Philip A. Haile, 2014. "Identification in Differentiated Products Markets Using Market Level Data," Econometrica, Econometric Society, vol. 82, pages 1749-1797, September.
    8. Liana Jacobi & Michelle Sovinsky, 2016. "Marijuana on Main Street? Estimating Demand in Markets with Limited Access," American Economic Review, American Economic Association, vol. 106(8), pages 2009-2045, August.
    9. Hunt Allcott & Benjamin B Lockwood & Dmitry Taubinsky, 2019. "Regressive Sin Taxes, with an Application to the Optimal Soda Tax," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(3), pages 1557-1626.
    10. Hansen, Benjamin & Miller, Keaton & Weber, Caroline, 2020. "Federalism, partial prohibition, and cross-border sales: Evidence from recreational marijuana," Journal of Public Economics, Elsevier, vol. 187(C).
    11. Blakeley B. McShane & Chaoqun Chen & Eric T. Anderson & Duncan I. Simester, 2016. "Decision Stages and Asymmetries in Regular Retail Price Pass-Through," Marketing Science, INFORMS, vol. 35(4), pages 619-639, July.
    12. Nathan H. Miller & Matthew C. Weinberg, 2017. "Understanding the Price Effects of the MillerCoors Joint Venture," Econometrica, Econometric Society, vol. 85(6), pages 1763-1791, November.
    13. Sumit Agarwal & Souphala Chomsisengphet & Neale Mahoney & Johannes Stroebel, 2014. "A Simple Framework for Estimating Consumer Benefits from Regulating Hidden Fees," The Journal of Legal Studies, University of Chicago Press, vol. 43(S2), pages 239-252.
    14. Laura Grigolon & Frank Verboven, 2014. "Nested Logit or Random Coefficients Logit? A Comparison of Alternative Discrete Choice Models of Product Differentiation," The Review of Economics and Statistics, MIT Press, vol. 96(5), pages 916-935, December.
    15. E. Glen Weyl & Michal Fabinger, 2013. "Pass-Through as an Economic Tool: Principles of Incidence under Imperfect Competition," Journal of Political Economy, University of Chicago Press, vol. 121(3), pages 528-583.
    16. Brett Hollenbeck & Renato Zaterka Giroldo, 2022. "Winning Big: Scale and Success in Retail Entrepreneurship," Marketing Science, INFORMS, vol. 41(2), pages 271-293, March.
    17. Becker, Gary S & Grossman, Michael & Murphy, Kevin M, 1991. "Rational Addiction and the Effect of Price on Consumption," American Economic Review, American Economic Association, vol. 81(2), pages 237-241, May.
    18. O'Connell, Martin & Smith, Kate, 2020. "Corrective Tax Design and Market Power," CEPR Discussion Papers 14582, C.E.P.R. Discussion Papers.
    19. Brett R. Gordon & Baohong Sun, 2015. "A Dynamic Model of Rational Addiction: Evaluating Cigarette Taxes," Marketing Science, INFORMS, vol. 34(3), pages 452-470, May.
    20. Katja Seim & Joel Waldfogel, 2013. "Public Monopoly and Economic Efficiency: Evidence from the Pennsylvania Liquor Control Board's Entry Decisions," American Economic Review, American Economic Association, vol. 103(2), pages 831-862, April.
    21. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer.
    22. Jérôme Adda & Brendon McConnell & Imran Rasul, 2014. "Crime and the Depenalization of Cannabis Possession: Evidence from a Policing Experiment," Journal of Political Economy, University of Chicago Press, vol. 122(5), pages 1130-1202.
    23. Auerbach, Alan J., 1985. "The theory of excess burden and optimal taxation," Handbook of Public Economics, in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 1, chapter 2, pages 61-127, Elsevier.
    24. Eugenio J. Miravete & Katja Seim & Jeff Thurk, 2018. "Market Power and the Laffer Curve," Econometrica, Econometric Society, vol. 86(5), pages 1651-1687, September.
    25. Adda, Jérôme & McConnell, Brendon & Rasul, Imran, 2014. "Crime and the depenalization of cannabis possession: evidence," Economics Working Papers ECO2014/05, European University Institute.
    26. Chamberlain, Gary, 1987. "Asymptotic efficiency in estimation with conditional moment restrictions," Journal of Econometrics, Elsevier, vol. 34(3), pages 305-334, March.
    27. Romana Khan & Kanishka Misra & Vishal Singh, 2016. "Will a Fat Tax Work?," Marketing Science, INFORMS, vol. 35(1), pages 10-26, January.
    28. Øyvind Thomassen & Howard Smith & Stephan Seiler & Pasquale Schiraldi, 2017. "Multi-category Competition and Market Power: A Model of Supermarket Pricing," American Economic Review, American Economic Association, vol. 107(8), pages 2308-2351, August.
    29. Gee Hee Hong & Nicholas Li, 2017. "Market Structure and Cost Pass-Through in Retail," The Review of Economics and Statistics, MIT Press, vol. 99(1), pages 151-166, March.
    30. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-890, July.
    31. Jean-Pierre Dubé & Sachin Gupta, 2008. "Cross-Brand Pass-Through in Supermarket Pricing," Marketing Science, INFORMS, vol. 27(3), pages 324-333, 05-06.
    32. Nathan H. Miller & Matthew Osborne & Gloria Sheu, 2017. "Pass-through in a concentrated industry: empirical evidence and regulatory implications," RAND Journal of Economics, RAND Corporation, vol. 48(1), pages 69-93, March.
    33. John Cawley & David Frisvold, 2015. "The Incidence of Taxes on Sugar-Sweetened Beverages: The Case of Berkeley, California," NBER Working Papers 21465, National Bureau of Economic Research, Inc.
    34. Christopher Conlon & Jeff Gortmaker, 2020. "Best practices for differentiated products demand estimation with PyBLP," RAND Journal of Economics, RAND Corporation, vol. 51(4), pages 1108-1161, December.
    35. Zhuang Hao & Benjamin Cowan, 2017. "The Cross-Border Spillover Effects of Recreational Marijuana Legalization," NBER Working Papers 23426, National Bureau of Economic Research, Inc.
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    More about this item

    JEL classification:

    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L81 - Industrial Organization - - Industry Studies: Services - - - Retail and Wholesale Trade; e-Commerce

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