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Measuring market power in French food manufacturing : a preliminary analysis
[Mesure du pouvoir de marché dans l'industrie agro-alimentaire française]

Author

Listed:
  • Catherine C. Benjamin

    (ESR - Unité de recherche d'Économie et Sociologie Rurales - INRA - Institut National de la Recherche Agronomique)

  • Chantal Le Mouël

    (ESR - Unité de recherche d'Économie et Sociologie Rurales - INRA - Institut National de la Recherche Agronomique)

  • Yves Surry

    (ESR - Unité de recherche d'Économie et Sociologie Rurales - INRA - Institut National de la Recherche Agronomique)

Abstract

De nombreuses branches d'activité du secteur agro-alimentaire français sont caractérisées par la présence de firmes de taille très importante. Dans une telle situation, chacune de ces firmes peut, par ses décisions individuelles, modifier à son avantage l'équilibre des marchés des produits qu'elle vend et/ou de certains inputs (en particulier des inputs agricoles) qu'elle utilise. L'objectif de cette recherche est de mesurer le pouvoir de marché effectivement exercé par les firmes agro-alimentaires françaises. Le comportement des firmes agro-alimentaires est représenté par le biais d'un modèle statique d'oligopole avec variations conjecturales. Ce modèle repose sur l'idée qu'en situation d'oligopole chaque firme élabore ses décisions de production sur la base d'hypothèses (i. e. de conjectures) quant à la réaction de ses rivales. Ces hypothèses sont matérialisées au travers de paramètres de variations conjecturales, la valeur de ces paramètres fournit une mesure du degré de concurrence en vigueur dans la branche d'activité considérée. Le modèle théorique est estimé économétriquement pour plusieurs branches d'activité du secteur agro-alimentaire français, à partir de séries annuelles couvrant la période 1978-1993. Les résultats économétriques obtenus suggèrent que trois branches d'activité (abattage de volailles, conserves de fruits et conserves de légumes) présentent une structure non concurrentielle, mais que le pouvoir effectivement exercé par les firmes sur leurs marchés d'outputs respectifs est resté relativement limité sur la période d'étude. La prochaine étape consistera à élargir l'application empirique au cas où les firmes ont la possibilité d'exercer un pouvoir de marché du côté des inputs agricoles qu'elles utilisent.

Suggested Citation

  • Catherine C. Benjamin & Chantal Le Mouël & Yves Surry, 1997. "Measuring market power in French food manufacturing : a preliminary analysis [Mesure du pouvoir de marché dans l'industrie agro-alimentaire française]," Post-Print hal-02838100, HAL.
    • Handle: RePEc:hal:journl:hal-02838100
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-02838100v1
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    References listed on IDEAS

    as
    1. A. M. Azzam & E. Pagoulatos, 1990. "Testing Oligopolistic And Oligopsonistic Behaviour: An Application To The Us Meat‐Packing Industry," Journal of Agricultural Economics, Wiley Blackwell, vol. 41(3), pages 362-370, September.
    2. Schroeter, John R. & Azzam, Azzeddine M., 1990. "Measuring Market Power in Multi-Product Oligopolies: The U.S. Meat Industry," Staff General Research Papers Archive 11112, Iowa State University, Department of Economics.
    3. Appelbaum, Elie, 1982. "The estimation of the degree of oligopoly power," Journal of Econometrics, Elsevier, vol. 19(2-3), pages 287-299, August.
    4. Joyce J. Wann & Sexton Richard J., 1992. "Imperfect Competition in Multiproduct Food Industries with Application to Pear Processing," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 74(4), pages 980-990.
    5. Mark J. Roberts & Larry Samuelson, 1988. "An Empirical Analysis of Dynamic, Nonprice Competition in an Oligopolistic Industry," RAND Journal of Economics, The RAND Corporation, vol. 19(2), pages 200-220, Summer.
    6. Gollop, Frank M. & Roberts, Mark J., 1979. "Firm interdependence in oligopolistic markets," Journal of Econometrics, Elsevier, vol. 10(3), pages 313-331, August.
    7. Richard J. Sexton, 1990. "Imperfect Competition in Agricultural Markets and the Role of Cooperatives: A Spatial Analysis," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 72(3), pages 709-720.
    8. Micha Gisser, 1982. "Welfare Implications of Oligopoly in U.S. Food Manufacturing," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 64(4), pages 616-624.
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