IDEAS home Printed from https://ideas.repec.org/p/diw/diwwpp/dp1734.html
   My bibliography  Save this paper

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

Author

Listed:
  • 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
    as

    Download full text from publisher

    File URL: https://www.diw.de/documents/publikationen/73/diw_01.c.583586.de/dp1734.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. 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.
    2. 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.
    3. 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, December.
    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. Lommerud, Kjell Erik & Sorgard, Lars, 1997. "Merger and product range rivalry," International Journal of Industrial Organization, Elsevier, vol. 16(1), pages 21-42, November.
    6. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia B. Villas-Boas, 2013. "The Impact of Retail Mergers on Food Prices : Evidence from France," Working Papers 2013-18, Center for Research in Economics and Statistics.
    7. 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.
    8. Daniel S. Hosken & Luke M. Olson & Loren K. Smith, 2018. "Do retail mergers affect competition? Evidence from grocery retailing," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 27(1), pages 3-22, March.
    9. Dennis Rickert & Jan Philip Schain & Joel Stiebale, 2021. "Local Market Structure and Consumer Prices: Evidence from a Retail Merger," Journal of Industrial Economics, Wiley Blackwell, vol. 69(3), pages 692-729, September.
    10. 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.
    11. George, Lisa, 2007. "What's fit to print: The effect of ownership concentration on product variety in daily newspaper markets," Information Economics and Policy, Elsevier, vol. 19(3-4), pages 285-303, October.
    12. Daniel Hanner & Daniel Hosken & Luke M. Olson & Loren K. Smith, 2015. "Dynamics in a Mature Industry: Entry, Exit, and Growth of Big‐Box Grocery Retailers," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 24(1), pages 22-46, March.
    13. 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.
    14. Luca Aguzzoni & Elena Argentesi & Lorenzo Ciari & Tomaso Duso & Massimo Tognoni, 2016. "Ex post Merger Evaluation in the U.K. Retail Market for Books," Journal of Industrial Economics, Wiley Blackwell, vol. 64(1), pages 170-200, March.
    15. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia B. Villas-Boas, 2017. "Retail Mergers and Food Prices: Evidence from France," Journal of Industrial Economics, Wiley Blackwell, vol. 65(3), pages 469-509, September.
    16. 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.
    17. Rigbi, Oren, 2017. "The Effects of Mandatory Disclosure of Supermarket Prices," CEPR Discussion Papers 12381, C.E.P.R. Discussion Papers.
    18. Orley Ashenfelter & Daniel Hosken & Matthew Weinberg, 2014. "Did Robert Bork Understate the Competitive Impact of Mergers? Evidence from Consummated Mergers," Journal of Law and Economics, University of Chicago Press, vol. 57(S3), pages 67-100.
    19. 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.
    20. 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.
    21. 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.
    22. Tiago Pires & André Trindade, 2018. "Ex-post Evaluation of Mergers in the Supermarket Industry," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 52(3), pages 473-496, May.
    23. David A. Matsa, 2011. "Competition and Product Quality in the Supermarket Industry," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 126(3), pages 1539-1591.
    24. 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.
    25. 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.
    26. Steven T. Berry & Joel Waldfogel, 2001. "Do Mergers Increase Product Variety? Evidence from Radio Broadcasting," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 116(3), pages 1009-1025.
    27. 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, June.
    28. Randal Watson, 2009. "Product Variety And Competition In The Retail Market For Eyeglasses," Journal of Industrial Economics, Wiley Blackwell, vol. 57(2), pages 217-251, June.
    29. 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.
    30. 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.
    31. 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.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," POID Working Papers 072, Centre for Economic Performance, LSE.
    2. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," CEP Discussion Papers dp1921, Centre for Economic Performance, LSE.
    3. Genakos, Christos & Lamprinidis, Andreas & Walker, James, 2023. "Evaluating merger effects," LSE Research Online Documents on Economics 121325, London School of Economics and Political Science, LSE Library.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Argentesi, Elena & Buccirossi, Paolo & Cervone, Roberto & Duso, Tomaso & Marrazzo, Alessia, 2021. "The effect of mergers on variety in grocery retailing," International Journal of Industrial Organization, Elsevier, vol. 79(C).
    2. Argentesi, Elena & Buccirossi, Paolo & Cervone, Roberto & Duso, Tomaso & Marrazzo, Alessia, 2021. "The effect of mergers on variety in grocery retailing," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 79, pages 1-19.
    3. Argentesi, Elena & Buccirossi, Paolo & Cervone, Roberto & Duso, Tomaso & Marrazzo, Alessia, 2016. "The effect of retail mergers on prices and variety: An ex-post evaluation," DICE Discussion Papers 225, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    4. Marco A. Marini, 2018. "Collusive agreements in vertically differentiated markets," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume II, chapter 3, pages 34-56, Edward Elgar Publishing.
    5. Gabszewicz, Jean J. & Marini, Marco A. & Tarola, Ornella, 2015. "Endogenous Mergers in Vertically Differentiated Markets," MPRA Paper 68318, University Library of Munich, Germany.
    6. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," CEP Discussion Papers dp1921, Centre for Economic Performance, LSE.
    7. A. Yeşim Orhun & Sriram Venkataraman & Pradeep K. Chintagunta, 2016. "Impact of Competition on Product Decisions: Movie Choices of Exhibitors," Marketing Science, INFORMS, vol. 35(1), pages 73-92, January.
    8. Tiago Pires & André Trindade, 2018. "Ex-post Evaluation of Mergers in the Supermarket Industry," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 52(3), pages 473-496, May.
    9. Gabszewicz Jean J. & Marini Marco A. & Tarola Ornella, 2019. "Endogenous Mergers in Markets with Vertically Differentiated Products," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 19(1), pages 1-22, January.
    10. Chrysovalantou Milliou & Joel Sandonis, 2018. "Manufacturer Mergers and Product Variety in Vertically Related Markets," Journal of Industry, Competition and Trade, Springer, vol. 18(1), pages 1-24, March.
    11. Genakos, Christos & Lamprinidis, Andreas & Walker, James, 2023. "Evaluating merger effects," LSE Research Online Documents on Economics 121325, London School of Economics and Political Science, LSE Library.
    12. Kurt R. Brekke & Luigi Siciliani & Odd Rune Straume, 2017. "Horizontal mergers and product quality," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 50(4), pages 1063-1103, November.
    13. Maican, Florin & Orth, Matilda, 2021. "Determinants of economies of scope in retail," International Journal of Industrial Organization, Elsevier, vol. 75(C).
    14. David P. Byrne, 2015. "Testing Models Of Differentiated Products Markets: Consolidation In The Cable Tv Industry," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 56(3), pages 805-850, August.
    15. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," POID Working Papers 072, Centre for Economic Performance, LSE.
    16. Dennis Rickert & Jan Philip Schain & Joel Stiebale, 2021. "Local Market Structure and Consumer Prices: Evidence from a Retail Merger," Journal of Industrial Economics, Wiley Blackwell, vol. 69(3), pages 692-729, September.
    17. Kim In Kyung, 2020. "Movie Variety and the City," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 20(3), pages 1-26, July.
    18. 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.
    19. Justin P. Johnson & Andrew Rhodes, 2021. "Multiproduct mergers and quality competition," RAND Journal of Economics, RAND Corporation, vol. 52(3), pages 633-661, September.
    20. Montag, Felix, 2022. "Mergers, Foreign Entry, and Jobs: Evidence from the U.S. Appliance Industry," CEPREMAP Working Papers (Docweb) 2207, CEPREMAP.

    More about this item

    Keywords

    Variety; assortment; mergers; ex-post evaluation; retail sector; supermarkets; grocery;
    All these keywords.

    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

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:diw:diwwpp:dp1734. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Bibliothek (email available below). General contact details of provider: https://edirc.repec.org/data/diwbede.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.