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An Output Orientated Non Parametric Measure of Economies of Scope

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Author Info

  • Mario Fortin

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

  • André Leclerc

    ()
    (GREDI, Université de Sherbrooke and GEREM, Université de Perpignan)

Abstract

Economies of scope are present when producing jointly a diversified basket of goods and services is less costly than their separate production. Data Envelopment Analysis (DEA) can estimate economies of scope by the difference between input requirement sets of diversified and specialized firms and are applicable only when both specialized and diversified firms are present in the sample. We develop a measure of economies of scope to an output orientated DEA model even when the sample comprises only diversified firms, to obtain radial estimation of economies of scope. Our method puts in evidence that economies of scope are influenced by scale inefficiencies, and if these inefficiencies are left aside, diseconomies of scope are impossible.

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File URL: http://gredi.recherche.usherbrooke.ca/wpapers/GREDI-0622.pdf
File Function: First version, 2006
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Bibliographic Info

Paper provided by Departement d'Economique de la Faculte d'administration à l'Universite de Sherbrooke in its series Cahiers de recherche with number 06-22.

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Length: 22 pages
Date of creation: 2006
Date of revision:
Handle: RePEc:shr:wpaper:06-22

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Keywords: Economies of scope; DEA;

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Cited by:
  1. Leclerc, André & Fortin, Mario, 2009. "Économies d’échelle et de gamme dans les coopératives de services financiers : une approche non paramétrique (DEA)," L'Actualité Economique, Société Canadienne de Science Economique, vol. 85(3), pages 263-282, septembre.

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