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The price-concentration relationship in grocery retailing: Retesting Newmark

  • Chih-ching Yu

    (Department of Business Administration, Dahan Institute of Technology, Hualien, Taiwan)

  • John M. Connor

    (Department of Agricultural Economics, Purdue University, West Lafayette, Indiana)

A study by Newmark is one of two price-concentration studies of U.S. grocery retailing that has failed to find a positive relationship. We examined four possible sources of experimental error in this study. The most important source of error was the failure to exclude noncompeting grocery retailers in the construction of the concentration measure. The relationship was also sensitive to controlling for a subgroup of observations from one state, to alternative data sources, and functional form. When these changes were made, concentration was found to be positively associated with the cost of groceries across cities. The relationship was significant despite a small nonrandom sample of cities and unscientifically sampled prices. [Econ Lit citations: L130, L810, L100] © 2002 Wiley Periodicals, Inc.

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File URL: http://hdl.handle.net/10.1002/agr.10028
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Article provided by John Wiley & Sons, Ltd. in its journal Agribusiness.

Volume (Year): 18 (2002)
Issue (Month): 4 ()
Pages: 413-426

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Handle: RePEc:wly:agribz:v:18:y:2002:i:4:p:413-426
Contact details of provider: Web page: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1520-6297

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  1. 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.
  2. Ronald W. Cotterill, 1999. "Market power and the Demsetz quality critique: An evaluation for food retailing," Agribusiness, John Wiley & Sons, Ltd., vol. 15(1), pages 101-118.
  3. 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 379-86, August.
  4. Sexton, Richard J. & Lavoie, Nathalie, 2001. "Food processing and distribution: An industrial organization approach," Handbook of Agricultural Economics, in: B. L. Gardner & G. C. Rausser (ed.), Handbook of Agricultural Economics, edition 1, volume 1, chapter 15, pages 863-932 Elsevier.
  5. Severin Borenstein, 1989. "Hubs and High Fares: Dominance and Market Power in the U.S. Airline Industry," RAND Journal of Economics, The RAND Corporation, vol. 20(3), pages 344-365, Autumn.
  6. 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.
  7. Hall, Lana & Schmitz, Andrew & Cothern, James, 1979. "Beef Wholesale-Retail Marketing Margins and Concentration," Economica, London School of Economics and Political Science, vol. 46(183), pages 295-300, August.
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