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Competition enhancings measures and scope economies: a welfare appraisal

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Abstract

This paper examines welfare changes before the introduction of more competition in technologically related markets. We develop a simple two-market duopoly with product differentiation where a multi-product firm competes with a different single-product firm in each market. Two competition enhancing measures are considered, divestiture of the multi-product firm and entry of single-product firms in one of the markets. The results obtained indicate that more competition may lead to a welfare reduction. Our analysis points out the relevance of the type and size of economies of scope, the particular way of introducing more competition and the degree of product differentiation.

Suggested Citation

  • Pedro Cantos-Sánchez & Rafael Moner-Colonques & José J. Sempere-Monerris, 2003. "Competition enhancings measures and scope economies: a welfare appraisal," Investigaciones Economicas, Fundación SEPI, vol. 27(1), pages 97-123, January.
    • Handle: RePEc:iec:inveco:v:27:y:2003:i:1:p:97-123
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    Citations

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    Cited by:

    1. Maria Jose Gil-Molto & Joanna Poyago-Theotoky, 2006. "Flexible vs Dedicated Technology Adoption in the Presence of a Public Firm," Discussion Paper Series 2006_1, Department of Economics, Loughborough University, revised Jan 2006.
    2. Pires Cesaltina Pacheco & Catalão-Lopes Margarida, 2013. "Economies of Scope, Entry Deterrence and Welfare," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 13(1), pages 419-452, June.
    3. Cesaltina Pacheco Pires & Margarida Catalão-Lopes, 2012. "Scope economies, entry deterrence and welfare," CEFAGE-UE Working Papers 2012_11, University of Evora, CEFAGE-UE (Portugal).

    More about this item

    Keywords

    Cost complementarity/substitutability; fixed cost subadditivity; welfare;
    All these keywords.

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L59 - Industrial Organization - - Regulation and Industrial Policy - - - Other

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