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Coexistence of Strategic Vertical Separation and Integration

Author

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  • Jos Jansen

Abstract

This paper gives conditions under which vertical separation is chosen by some upstream firms, while vertical integration is chosen by others in the equilibrium of a symmetric model. A vertically separating firm trades off fixed contracting costs against the strategic benefit of writing a (two-part tariff, exclusive dealership) contract with its retailer. Equilibrium coexistence emerges when observable and non-renegotiable contracts are offered to downstream Cournot oligopolists that supply close substitutes. The scope for equilibrium coexistence diminishes when assumptions on contract observability and commitment are relaxed. ZUSAMMENFASSUNG - (Koexistenz von strategischer vertikaler Trennung und Integration) In der Arbeit werden die Bedingungen identifiziert, unter denen im Gleichgewicht eines symmetrischen Modells einige, in der Produktionskette vorgelagerte Firmen vertikale Trennung wählen, während andere sich für vertikale Integration entscheiden. Ein vertikal getrenntes Unternehmen wägt die fixen Vertragskosten gegen den strategischen Vorteil eines Vertrages (mit gespaltenem Tarif und exklusiven Vertriebsrechten) mit dem nachgelagerten Einzelhändler ab. Die Koexistenz der beiden Organisationsformen im Gleichgewicht entsteht, wenn den nachgelagerten Cournot-Oligopolisten, die fast perfekte Substitute produzieren, beobachtbare und nicht nachverhandelbare Verträge angeboten werden. Die Koexistenz der Organisationsformen im Gleichgewicht tritt weniger häufig auf, wenn die Annahmen bezüglich der Beobachtbarkeit der Verträge und der Möglichkeit sich zu binden, gelockert werden.

Suggested Citation

  • Jos Jansen, 2000. "Coexistence of Strategic Vertical Separation and Integration," CIG Working Papers FS IV 00-16, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  • Handle: RePEc:wzb:wzebiv:fsiv00-16
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    More about this item

    Keywords

    Vertical Oligopoly; Contract Costs; Strategic Substitutes;
    All these keywords.

    JEL classification:

    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
    • L42 - Industrial Organization - - Antitrust Issues and Policies - - - Vertical Restraints; Resale Price Maintenance; Quantity Discounts

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