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On the social (sub)optimality of divisionalization under product differentiation

Author

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  • Luca Lambertini

    (University of Bologna)

  • Giuseppe Pignataro

    (University of Bologna)

Abstract

We revisit the interplay between differentiation and divisionalization in a duopoly version of Ziss (Econ Lett 59:133–138, 1998). We model divisionalization as a discrete problem to prove that (i) firms may choose not to become multidivisional; and (ii) there may arise asymmetric outcomes in mixed strategies, due to the existence of multiple symmetric equilibria. If industry-wide divisionalization is the unique equilibrium, it can be socially efficient provided goods are almost perfect substitutes. Even small degrees of differentiation may suffice to make industry-wide divisionalization socially desirable because of the prevalence of consumers’ taste for variety over the replication of fixed costs.

Suggested Citation

  • Luca Lambertini & Giuseppe Pignataro, 2019. "On the social (sub)optimality of divisionalization under product differentiation," Journal of Economics, Springer, vol. 128(3), pages 225-238, December.
    • Handle: RePEc:kap:jeczfn:v:128:y:2019:i:3:d:10.1007_s00712-019-00669-5
    DOI: 10.1007/s00712-019-00669-5
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    References listed on IDEAS

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    Cited by:

    1. Margarida Catalão-Lopes & Duarte Brito, 2021. "Post-merger internal organization in multitier decentralized supply chains," Journal of Economics, Springer, vol. 132(3), pages 251-289, April.

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    More about this item

    Keywords

    Divisionalization; Product differentiation; Duopoly;
    All these keywords.

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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