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Économies d’échelle et de gamme dans les coopératives de services financiers : une approche non paramétrique (DEA)

Author

Listed:
  • Mario Fortin

    (GREDI, Département d'économique, Université de Sherbrooke)

  • Andre Leclerc

    (Secteur sciences humaines, Université de Moncton, campus d’Edmundston)

Abstract

Lorsque des économies d’échelle et de gamme sont simultanément présentes, le regroupement des établissements tend à réduire les coûts. De nombreuses études empiriques ont déjà établi qu’au-delà d’une certaine taille, les coûts des banques tendent à devenir proportionnels. Il y aurait donc une limite à ces économies d’échelle et de gamme. Nous vérifions si l’important processus de fusions des caisses Desjardins du Québec et des caisses acadiennes entrepris en 1998 les a poussées au-delà de leur seuil minimal d’efficacité. Une analyse par lissage exponentiel montre que le coût moyen d’opération cesse de diminuer lorsque l’actif des caisses atteint 250 millions de dollars. Nous procédons à une estimation formelle de cette conclusion à l’aide de la méthode du Data Envelopment Analysis (DEA). Notre estimation combine les méthodes maintenant bien connues pour calculer l’efficacité d’échelle avec le DEA à un résultat de Fortin et Leclerc (2006) montrant que les économies de gamme peuvent se décomposer en efficacité d’échelle et en une mesure de convexité de la fonction de production. Nos montrons que la plupart des fusions ont amené la caisse fusionnée à une taille telle qu’elle se situe en situation de rendement d’échelle décroissant. La recherche de la taille optimale ne semble donc pas être la première préoccupation dans la décision de fusion.

Suggested Citation

  • Mario Fortin & Andre Leclerc, 2009. "Économies d’échelle et de gamme dans les coopératives de services financiers : une approche non paramétrique (DEA)," Cahiers de recherche 09-08, Departement d'économique de l'École de gestion à l'Université de Sherbrooke.
    • Handle: RePEc:shr:wpaper:09-08
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    References listed on IDEAS

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    1. Mohamed Dia & Pawoumodom M. Takouda & Amirmohsen Golmohammadi, 2022. "Assessing the performance of Canadian credit unions using a three-stage network bootstrap DEA," Annals of Operations Research, Springer, vol. 311(2), pages 641-673, April.

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    More about this item

    Keywords

    Scale efficiency; mergers; banking; DEA;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G34 - Financial Economics - - Corporate Finance and Governance - - - Mergers; Acquisitions; Restructuring; Corporate Governance
    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance

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