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Vertical Integration versus Vertical Separation: An Equilibrium Model

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  • Cyrenne, Philippe

Abstract

. In this paper, the role of strategic forces in vertical relationships is examined. Using a simple model of differentiated products with symmetric demands and costs, the Perfect equilibrium to a vertical integration-vertical separation game between manufacturers is determined. Given the assumptions of the model, I show that the manufacturer's decision whether to vertically integrate or to remain separate from its retailer depends on the degree of product differentiation. I show that when the products are poor substitutes, the only Perfect equilibrium is vertical integration by both manufacturers. As the products become closer substitutes, an additional Perfect equilibrium appears, both firms vertically separated. For manufacturers, the vertically separated equilibrium always Pareto dominates the vertical integration equilibrium when both equilibria exist.

Suggested Citation

  • Cyrenne, Philippe, 1993. "Vertical Integration versus Vertical Separation: An Equilibrium Model," MPRA Paper 28746, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:28746
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    File URL: https://mpra.ub.uni-muenchen.de/28746/1/MPRA_paper_28746.pdf
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    References listed on IDEAS

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    1. Rey, Patrick & Stiglitz, Joseph, 1988. "Vertical restraints and producers' competition," European Economic Review, Elsevier, vol. 32(2-3), pages 561-568, March.
    2. Chaim Fershtman & Kenneth L. Judd, 2006. "Equilibrium Incentives in Oligopoly: Corrigendum," American Economic Review, American Economic Association, vol. 96(4), pages 1367-1367, September.
    3. Avinash Dixit, 1979. "A Model of Duopoly Suggesting a Theory of Entry Barriers," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 20-32, Spring.
    4. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 2, number 2.
    5. Perry, Martin K., 1989. "Vertical integration: Determinants and effects," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 4, pages 183-255, Elsevier.
    6. Bonanno, Giacomo & Vickers, John, 1988. "Vertical Separation," Journal of Industrial Economics, Wiley Blackwell, vol. 36(3), pages 257-265, March.
    7. Fershtman, Chaim & Judd, Kenneth L, 1987. "Equilibrium Incentives in Oligopoly," American Economic Review, American Economic Association, vol. 77(5), pages 927-940, December.
    8. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
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    Cited by:

    1. Bakaouka, Elpiniki & Milliou, Chrysovalantou, 2018. "Vertical licensing, input pricing, and entry," International Journal of Industrial Organization, Elsevier, vol. 59(C), pages 66-96.
    2. Chi-Ting Chin, 2014. "The Growth and Welfare Effects of Vertical Separation versus Vertical Integration," Journal of Economics and Management, College of Business, Feng Chia University, Taiwan, vol. 10(2), pages 117-127, July.

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    JEL classification:

    • L0 - Industrial Organization - - General
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance

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