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Scope economies, entry deterrence and welfare

Author

Listed:
  • Cesaltina Pacheco Pires

    (CEFAGE-UE, Departamento de Gestão, Universidade de Évora, Portugal)

  • Margarida Catalão-Lopes

    (CEG-IST, Instituto Superior Técnico, Technical University of Lisbon)

Abstract

This paper develops a model where the incumbent may expand to a second related market so as to signal the existence of scope economies and deter potential entry. We show that the incumbent only expands to another market when scope economies are large enough. Thus expansion is indeed a signal of larger economies of scope and, for certain parameter values, it leads to entry deterrence. We show that the perfect bayesian equilibrium may involve entry accommodation, entry deterrence or a mixed strategy equilibrium. We investigate the welfare implications of prohibiting an entry deterrent expansion. In our model, such prohibition would always decrease consumer surplus. The welfare impact of preventing entry deterrence is ambiguous but negative for many parameter values.

Suggested Citation

  • 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).
    • Handle: RePEc:cfe:wpcefa:2012_11
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    File URL: http://www.cefage.uevora.pt/en/content/download/3148/41953/version/1/file/2012_11.pdf
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    References listed on IDEAS

    as
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    Cited by:

    1. Cesaltina Pacheco Pires & Margarida Catalão‐Lopes, 2020. "Does asymmetric information always help entry deterrence? Can it increase welfare?," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 29(3), pages 686-705, July.

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    More about this item

    Keywords

    Scope economies; signalling; entry deterrence.;
    All these keywords.

    JEL classification:

    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality
    • M37 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Marketing and Advertising - - - Advertising

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