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Measuring Market Power for Food Retail Activities: French Evidence

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  • Alexandre Gohin
  • Hervé Guyomard

Abstract

In this paper we develop and estimate an empirical model of pricing behaviour for food retail firms in both a quantity‐setting oligopoly engaged in the joint production of demand‐related final goods and a quantity‐setting oligopsony for supply‐unrelated wholesale goods. The procedure consists of estimating an inverse demand system for the final goods, single supply functions for the wholesale goods and the retail industry first‐order profit‐maximisation conditions, from which an estimate of the degree of imperfect competition and of oligopoly‐oligopsony power for the different commodities can be retrieved. The model is applied to the French food retail industry and three commodities are distinguished: dairy products, meat products and other food products. We strongly reject the hypothesis that French food retail firms behave competitively, and more than 20 and 17 per cent of the wholesale‐to‐retail price margins for dairy products and meat products, respectively, can be attributed to oligopoly‐oligopsony distortions.

Suggested Citation

  • Alexandre Gohin & Hervé Guyomard, 2000. "Measuring Market Power for Food Retail Activities: French Evidence," Journal of Agricultural Economics, Wiley Blackwell, vol. 51(2), pages 181-195, May.
  • Handle: RePEc:bla:jageco:v:51:y:2000:i:2:p:181-195
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    File URL: https://doi.org/10.1111/j.1477-9552.2000.tb01222.x
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