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Price or Variety? An Evaluation of Mergers Effects in Grocery Retailing

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  • Elena Argentesi
  • Paolo Buccirossi
  • Roberto Cervone
  • Tomaso Duso
  • Alessia Marrazzo

Abstract

Assortment decisions are key strategic instruments for firms responding to local market conditions. We assess this claim by studying the effect of a national merger between two large Dutch supermarket chains on prices and on the depth as well as composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in the merger’s effects, controlling for selection on observables when defining our control group through a matching procedure. We show that the local change in competitive conditions due to the merger did not affect individual products’ prices but it led the merging parties to reposition their assortment and increase average category prices. While the low-variety and low-price target’s stores reduced the depth of their assortment when in direct competition with the acquirer’s stores, the latter increased their product variety. By analyzing the effect of the merger on category prices, we find that the target most likely dropped high priced products, while the acquirer added more of them. Thus, the merging firms reposition their product offerings in order to avoid cannibalization and lessen local competition. Further, we show that other dimensions of heterogeneity, such as market concentration, whether a divestiture was imposed by the Dutch competition authority, and the re-branding strategy of the target stores, are important for explaining the post-merger dynamics. A simple theoretical model of local-market variety competition explains most of our findings.

Suggested Citation

  • Elena Argentesi & Paolo Buccirossi & Roberto Cervone & Tomaso Duso & Alessia Marrazzo, 2018. "Price or Variety? An Evaluation of Mergers Effects in Grocery Retailing," Discussion Papers of DIW Berlin 1734, DIW Berlin, German Institute for Economic Research.
  • Handle: RePEc:diw:diwwpp:dp1734
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    References listed on IDEAS

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    1. Chenghuan Sean Chu, 2010. "The effect of satellite entry on cable television prices and product quality," RAND Journal of Economics, RAND Corporation, vol. 41(4), pages 730-764.
    2. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia Villas-Boas, 2013. "The Impact of Retail Mergers on Food Prices: Evidence from France," Working Papers hal-00920460, HAL.
    3. Ying Fan, 2013. "Ownership Consolidation and Product Characteristics: A Study of the US Daily Newspaper Market," American Economic Review, American Economic Association, vol. 103(5), pages 1598-1628, August.
    4. Georg Götz & Klaus Gugler, 2006. "Market Concentration and Product Variety under Spatial Competition: Evidence from Retail Gasoline," Journal of Industry, Competition and Trade, Springer, vol. 6(3), pages 225-234, December.
    5. Rickert, Dennis & Schain, Jan Philip & Stiebale, Joel, 2018. "Local market structure and consumer prices: Evidence from a retail merger," DICE Discussion Papers 280, University of Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    6. Aguzzoni, Luca & Argentesi, Elena & Ciari, Lorenzo & Duso, Tomaso & Tognoni, Massimo, 2016. "Ex-post Merger Evaluation in the U.K. Retail Market for Books," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 170-200.
    7. Bart J. Bronnenberg & Paul B. Ellickson, 2015. "Adolescence and the Path to Maturity in Global Retail," Journal of Economic Perspectives, American Economic Association, vol. 29(4), pages 113-134, Fall.
    8. Orley C. Ashenfelter & Daniel S. Hosken & Matthew C. Weinberg, 2013. "The Price Effects of a Large Merger of Manufacturers: A Case Study of Maytag-Whirlpool," American Economic Journal: Economic Policy, American Economic Association, vol. 5(1), pages 239-261, February.
    9. David A. Matsa, 2011. "Competition and Product Quality in the Supermarket Industry," The Quarterly Journal of Economics, Oxford University Press, vol. 126(3), pages 1539-1591.
    10. Minha Hwang & Bart J. Bronnenberg & Raphael Thomadsen, 2010. "An Empirical Analysis of Assortment Similarities Across U.S. Supermarkets," Marketing Science, INFORMS, vol. 29(5), pages 858-879, 09-10.
    11. Przemys?aw Jeziorski, 2014. "Effects of Mergers in Two-Sided Markets: The US Radio Industry," American Economic Journal: Microeconomics, American Economic Association, vol. 6(4), pages 35-73, November.
    12. Erik Brynjolfsson & Yu (Jeffrey) Hu & Michael D. Smith, 2003. "Consumer Surplus in the Digital Economy: Estimating the Value of Increased Product Variety at Online Booksellers," Management Science, INFORMS, vol. 49(11), pages 1580-1596, November.
    13. Hwang, M. & Bronnenberg, B.J. & Thomadsen, R., 2010. "An empirical analysis of assortment similarities across U.S. supermarkets," Other publications TiSEM adc990b3-1d5b-4fab-8679-a, Tilburg University, School of Economics and Management.
    14. Lommerud, Kjell Erik & Sorgard, Lars, 1997. "Merger and product range rivalry," International Journal of Industrial Organization, Elsevier, vol. 16(1), pages 21-42, November.
    15. Michaela Draganska & Michael Mazzeo & Katja Seim, 2009. "Beyond plain vanilla: Modeling joint product assortment and pricing decisions," Quantitative Marketing and Economics (QME), Springer, vol. 7(2), pages 105-146, June.
    16. Ater, Itai & Rigbi, Oren, 2017. "The Effects of Mandatory Disclosure of Supermarket Prices," CEPR Discussion Papers 12381, C.E.P.R. Discussion Papers.
    17. Charlotte R. Ren & Ye Hu & Yu (Jeffrey) Hu & Jerry Hausman, 2011. "Managing Product Variety and Collocation in a Competitive Environment: An Empirical Investigation of Consumer Electronics Retailing," Management Science, INFORMS, vol. 57(6), pages 1009-1024, June.
    18. Timothy J. Richards & Stephen F. Hamilton, 2006. "Rivalry in Price and Variety among Supermarket Retailers," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(3), pages 710-726.
    19. Barros, Pedro Pita & Brito, Duarte & de Lucena, Diogo, 2006. "Mergers in the food retailing sector: An empirical investigation," European Economic Review, Elsevier, vol. 50(2), pages 447-468, February.
    20. Steven T. Berry & Joel Waldfogel, 2001. "Do Mergers Increase Product Variety? Evidence from Radio Broadcasting," The Quarterly Journal of Economics, Oxford University Press, vol. 116(3), pages 1009-1025.
    21. Andrew Sweeting, 2010. "The effects of mergers on product positioning: evidence from the music radio industry," RAND Journal of Economics, RAND Corporation, vol. 41(2), pages 372-397.
    22. Randal Watson, 2009. "PRODUCT VARIETY AND COMPETITION IN THE RETAIL MARKET FOR EYEGLASSES -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 57(2), pages 217-251, June.
    23. Paul W. Dobson & Michael Waterson, 2005. "Chain-Store Pricing Across Local Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 14(1), pages 93-119, March.
    24. Raymond Deneckere & Carl Davidson, 1985. "Incentives to Form Coalitions with Bertrand Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(4), pages 473-486, Winter.
    25. Bart J. Bronnenberg, 2015. "The provision of convenience and variety by the market," RAND Journal of Economics, RAND Corporation, vol. 46(3), pages 480-498, September.
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    More about this item

    Keywords

    Variety; assortment; mergers; ex-post evaluation; retail sector; supermarkets; grocery;

    JEL classification:

    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • L66 - Industrial Organization - - Industry Studies: Manufacturing - - - Food; Beverages; Cosmetics; Tobacco
    • L81 - Industrial Organization - - Industry Studies: Services - - - Retail and Wholesale Trade; e-Commerce
    • D22 - Microeconomics - - Production and Organizations - - - Firm Behavior: Empirical Analysis
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models

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