IDEAS home Printed from
   My bibliography  Save this paper

The Effect Of Entry By Wal-Mart Supercenters On Retail Grocery Concentration


  • Martens, Bobby J.
  • Dooley, Frank J.
  • Kim, Sounghun


The U.S. retail grocery industry shifted from an industry dominated by small grocers serving local markets to one characterized by large retailers present in international markets. Average retail grocery concentration as measured by CR4 increased from 17.8 in 1982 to 43.0 in 1999 (U.S. Census Bureau, 1982; Trade Dimensions Marketing Guidebook, 2000). Wal-Mart's tremendous growth is the catalyst to this change. Although Wal-Mart has been studied from multiple perspectives, little is known about Wal-Mart's effect on market concentration. Understanding Wal-Mart's influence on market concentration is important because an extensive literature shows a pattern linking retail grocery market concentration to increases in retail grocery prices. The objective of this analysis is to evaluate the effects of de novo entry by Wal-Mart Supercenters on retail grocery concentration (CR4). Using a panel dataset complied from Trade Dimensions Marketing Guidebook and Market Scope publications, the effect of Wal-Mart Supercenters on changes in retail grocery concentration was estimated. The results show that existing Wal-Mart Supercenter operations and entry by Wal-Mart Supercenters significantly increase the rate of change in retail grocery concentration as measured by CR4.

Suggested Citation

  • Martens, Bobby J. & Dooley, Frank J. & Kim, Sounghun, 2006. "The Effect Of Entry By Wal-Mart Supercenters On Retail Grocery Concentration," 2006 Annual meeting, July 23-26, Long Beach, CA 21101, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
  • Handle: RePEc:ags:aaea06:21101

    Download full text from publisher

    File URL:
    Download Restriction: no

    References listed on IDEAS

    1. Levy, David, 1985. "Specifying the Dynamics of Industry Concentration," Journal of Industrial Economics, Wiley Blackwell, vol. 34(1), pages 55-68, September.
    2. Krugman, Paul R, 1981. "Intraindustry Specialization and the Gains from Trade," Journal of Political Economy, University of Chicago Press, vol. 89(5), pages 959-973, October.
    3. Bruce Marion, 1998. "Competition in Grocery Retailing: The Impact of a New Strategic Group on BLS Price Increases," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 13(4), pages 381-399, August.
    4. Binkley, James K. & Connor, John M., 1996. "Market Competition And Metropolitan-Area Grocery Prices," Working Papers 25988, Regional Research Project NE-165 Private Strategies, Public Policies, and Food System Performance.
    5. Masahisa Fujita & Paul Krugman & Anthony J. Venables, 2001. "The Spatial Economy: Cities, Regions, and International Trade," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262561476, July.
    6. Dobson, Paul W & Waterson, Michael, 1997. "Countervailing Power and Consumer Prices," Economic Journal, Royal Economic Society, vol. 107(441), pages 418-430, March.
    7. Krugman, Paul, 1980. "Scale Economies, Product Differentiation, and the Pattern of Trade," American Economic Review, American Economic Association, vol. 70(5), pages 950-959, December.
    8. Cotterill, Ronald W, 1986. "Market Power in the Retail Food Industry: Evidence from Vermont," The Review of Economics and Statistics, MIT Press, vol. 68(3), pages 379-386, August.
    9. Newmark, Craig M., 1990. "A new test of the price-concentration relationship in grocery retailing," Economics Letters, Elsevier, vol. 33(4), pages 369-373, August.
    10. Curry, B & George, K D, 1983. "Industrial Concentration: A Survey," Journal of Industrial Economics, Wiley Blackwell, vol. 31(3), pages 203-255, March.
    Full references (including those not matched with items on IDEAS)


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

    Cited by:

    1. Fernando Borraz & Juan Dubra & Daniel Ferrés & Leandro Zipitría, 2014. "Supermarket Entry and the Survival of Small Stores," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 44(1), pages 73-93, February.
    2. Fernando Borraz & Juan Dubra & Daniel Ferrés & Leandro Zipitría, 2013. "Supermarket Entry and The Survival of Small Stores," Documentos de Trabajo/Working Papers 1303, Facultad de Ciencias Empresariales y Economia. Universidad de Montevideo..
    3. Zipitría, Leandro, 2011. "Impacto económico del Supermercadismo
      [The Economics of Supermarkets: A Brief Literature Review]
      ," MPRA Paper 28419, University Library of Munich, Germany.
    4. Fernando Borraz & Juan Dubra & Daniel Ferrés & Leandro Zipitría, 2009. "Supermarket Entry and its effect on small stores in Montevideo, 1998 to 2007," Documentos de trabajo 2009005, Banco Central del Uruguay.

    More about this item




    Access and download statistics


    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:ags:aaea06:21101. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search). General contact details of provider: .

    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 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.