Market power and the Demsetz quality critique: An evaluation for food retailing
This study uses factor analysis to identify five service factors that are modeled with price as endogenous variables in a simultaneous equations framework to test whether a more concentrated market structure is related to higher service levels, which, in turn, are related to higher prices (the Demsetz quality critique) or whether a more concentrated market structure is directly related to higher prices (market power hypothesis). For this study of supermarkets in 34 local markets in six southwestern states, market share and concentration are not significantly related to any service factors. However, concentration has a significant positive relationship with price in the full sample, and share also is significantly related to price in subsamples of large, leading firms. Thus, the Demsetz quality critique is rejected. Also coordinated rather than unilateral effects seem predominant. When examining store size, superstores enjoy economics up to 50,000 square feet, but most of the cost savings are offset by pricing power related to increased services levels. © 1999 John Wiley & Sons, Inc.
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Volume (Year): 15 (1999)
Issue (Month): 1 ()
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- Demsetz, Harold, 1973. "Industry Structure, Market Rivalry, and Public Policy," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 1-9, April.
- 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.
- Nelson, Philip & Siegfried, John J & Howell, John, 1992. "A Simultaneous Equations Model of Coffee Brand Pricing and Advertising," The Review of Economics and Statistics, MIT Press, vol. 74(1), pages 54-63, February.
- Evans, William N & Froeb, Luke M & Werden, Gregory J, 1993. "Endogeneity in the Concentration-Price Relationship: Causes, Consequences, and Cures," Journal of Industrial Economics, Wiley Blackwell, vol. 41(4), pages 431-38, December.
- 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.
- MacDonald, James M. & Nelson, Paul Jr., 1991. "Do the poor still pay more? Food price variations in large metropolitan areas," Journal of Urban Economics, Elsevier, vol. 30(3), pages 344-359, November.
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