Market-Structure Determinants Of National Brand-Private Label Price Differences Of Manufactured Food Products
This paper estimates the relationships between market structure and the Lerner index of monopoly constructed from price data on processed food products sold through grocery stores. A theoretical model of a differentiated oligopoly specifies two determinants of price-cost margins: the Herfindahl-Hirschman index of seller concentration adjusted for the elasticity of demand and the industry advertising-to-sales ratio. The results indicate that the three principal determinants of price-cost margin variation, in order of their impacts, are: advertising intensity, elasticity of demand, and concentration. Previous structure-performance studies that did not incorporate the elasticity of demand were probably misspecified.
|Date of creation:||Oct 1991|
|Date of revision:|
|Contact details of provider:|| Postal: Draper Hall, College of Food and Natural Resources, Amherst, MA 01003|
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- Nickell, Stephen J & Metcalf, David, 1978. "Monopolistic Industries and Monopoly Profits or, Are Kellogg's Cornflakes Overpriced?," Economic Journal, Royal Economic Society, vol. 88(350), pages 254-68, June.
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- Connor, John M. & Peterson, Everett B., 1991.
"Market-Structure Determinants Of National Brand-Private Label Price Differences Of Manufactured Food Products,"
116099, Regional Research Project NE-165 Private Strategies, Public Policies, and Food System Performance.
- Connor, John M & Peterson, Everett B, 1992. "Market-Structure Determinants of National Brand-Private Label Price Differences of Manufactured Food Products," Journal of Industrial Economics, Wiley Blackwell, vol. 40(2), pages 157-71, June.
- Cowling, Keith & Waterson, Michael, 1976. "Price-Cost Margins and Market Structure," Economica, London School of Economics and Political Science, vol. 43(171), pages 267-74, August.
- A. P. Lerner, 1934. "The Concept of Monopoly and the Measurement of Monopoly Power," Review of Economic Studies, Oxford University Press, vol. 1(3), pages 157-175.
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