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Vertical differentiation and collusion: pruning or proliferation?

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  • Jean Gabszewicz, Jean
  • Marini, Marco A.
  • Tarola, Ornella

Abstract

In this paper, we tackle the dilemma of pruning versus proliferation in a vertically differentiated oligopoly under the assumption that some firms collude and control both the range of variants for sale and their corresponding prices, likewise a multi-product firm. We analyse whether pruning emerges and, if so, a fighting brand is marketed. We find that it is always more profitable for colluding firms to adopt a pricing strategy such that some variants are withdrawn from the market. Under pruning, these firms commercialize a fighting brand only when facing competitors in a low-end market.

Suggested Citation

  • Jean Gabszewicz, Jean & Marini, Marco A. & Tarola, Ornella, 2016. "Vertical differentiation and collusion: pruning or proliferation?," MPRA Paper 74599, University Library of Munich, Germany, revised 15 Oct 2016.
  • Handle: RePEc:pra:mprapa:74599
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    1. Richard Schmalensee, 1978. "Entry Deterrence in the Ready-to-Eat Breakfast Cereal Industry," Bell Journal of Economics, The RAND Corporation, vol. 9(2), pages 305-327, Autumn.
    2. Jean J. Gabszewicz & Ornella Tarola, 2018. "Oligopoly and product differentiation," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume I, chapter 6, pages 137-180, Edward Elgar Publishing.
    3. Gabszewicz, Jean J. & Marini, Marco A. & Tarola, Ornella, 2016. "Core existence in vertically differentiated markets," Economics Letters, Elsevier, vol. 149(C), pages 28-32.
    4. Jaskold Gabszewicz, Jean & Shaked, Avner & Sutton, John & Thisse, Jacques-Francois, 1986. "Segmenting the market: The monopolist's optimal product mix," Journal of Economic Theory, Elsevier, vol. 39(2), pages 273-289, August.
    5. Ralph Siebert, 2015. "Entering New Markets in the Presence of Competition: Price Discrimination versus Cannibalization," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 24(2), pages 369-389, June.
    6. Bonnisseau Jean-Marc & Lahmandi-Ayed Rim, 2006. "Vertical Differentiation: Multiproduct Strategy to Face Entry?," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 6(1), pages 1-16, November.
    7. Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-557, May.
    8. Chamorro-Rivas, Jose-Maria, 2000. "Plant proliferation in a spatial model of Cournot competition," Regional Science and Urban Economics, Elsevier, vol. 30(5), pages 507-518, September.
    9. Marco A. Marini, 2018. "Collusive agreements in vertically differentiated markets," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume II, chapter 3, pages 34-56, Edward Elgar Publishing.
    10. Berry, Steven & Pakes, Ariel, 1993. "Some Applications and Limitations of Recent Advances in Empirical Industrial Organization: Merger Analysis," American Economic Review, American Economic Association, vol. 83(2), pages 247-252, May.
    11. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
    12. Ralph Siebert, 2003. "The Introduction of New Product Qualities by Incumbent Firms: Market Proliferation versus Cannibalization," CIG Working Papers SP II 2003-11, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    13. Sunder Kekre & Kannan Srinivasan, 1990. "Broader Product Line: A Necessity to Achieve Success?," Management Science, INFORMS, vol. 36(10), pages 1216-1232, October.
    14. Yongmin Chen & Marius Schwartz, 2013. "Product Innovation Incentives: Monopoly vs. Competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 22(3), pages 513-528, September.
    15. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, April.
    16. Lommerud, Kjell Erik & Sorgard, Lars, 1997. "Merger and product range rivalry," International Journal of Industrial Organization, Elsevier, vol. 16(1), pages 21-42, November.
    17. Jean J. Gabszewicz & Marco A. Marini & Ornella Tarola, 2015. "Alliance Formation in a Vertically Differentiated Market," DIAG Technical Reports 2015-06, Department of Computer, Control and Management Engineering, Universita' degli Studi di Roma "La Sapienza".
    18. Jaskold Gabszewicz, J. & Thisse, J. -F., 1979. "Price competition, quality and income disparities," Journal of Economic Theory, Elsevier, vol. 20(3), pages 340-359, June.
    19. Justin P. Johnson & David P. Myatt, 2003. "Multiproduct Quality Competition: Fighting Brands and Product Line Pruning," American Economic Review, American Economic Association, vol. 93(3), pages 748-774, June.
    20. Eric Giraud-Héraud & Hakim Hammoudi & Mahdi Mokrane, 2003. "Multiproduct firm behaviour in a differentiated market," Canadian Journal of Economics, Canadian Economics Association, vol. 36(1), pages 41-61, February.
    21. Kelvin Lancaster, 1990. "The Economics of Product Variety: A Survey," Marketing Science, INFORMS, vol. 9(3), pages 189-206.
    22. Giacomo Bonanno, 1987. "Location Choice, Product Proliferation and Entry Deterrence," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 54(1), pages 37-45.
    23. Takatoshi Tabuchi, 2012. "Multiproduct Firms in Hotelling’s Spatial Competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 21(2), pages 445-467, June.
    24. Barry L. Bayus & William P. Putsis, Jr., 1999. "Product Proliferation: An Empirical Analysis of Product Line Determinants and Market Outcomes," Marketing Science, INFORMS, vol. 18(2), pages 137-153.
    25. Sanghoo Bae & Jay Pil Choi, 2007. "The Optimal Number of Firms With an Application to Professional Sports Leagues," Journal of Sports Economics, , vol. 8(1), pages 99-108, February.
    26. Steven C. Salop, 1979. "Monopolistic Competition with Outside Goods," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 141-156, Spring.
    27. Marini, Marco A. & Corchon, Luis, 2016. "Handbook of Game Theory and Industrial Organization: An Introduction," MPRA Paper 77169, University Library of Munich, Germany.
    28. Steven T. Berry & Joel Waldfogel, 1999. "Free Entry and Social Inefficiency in Radio Broadcasting," RAND Journal of Economics, The RAND Corporation, vol. 30(3), pages 397-420, Autumn.
    29. Pakes, Ariel & Berry, Steven & Levinsohn, James A, 1993. "Applications and Limitations of Some Recent Advances in Empirical Industrial Organization: Price Indexes and the Analysis of Environmental Change," American Economic Review, American Economic Association, vol. 83(2), pages 241-246, May.
    30. Jaskold Gabszewicz, J. & Thisse, J. -F., 1980. "Entry (and exit) in a differentiated industry," Journal of Economic Theory, Elsevier, vol. 22(2), pages 327-338, April.
    31. Amil Petrin, 2002. "Quantifying the Benefits of New Products: The Case of the Minivan," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 705-729, August.
    32. Martinez-Giralt, Xavier & Neven, Damien J, 1988. "Can Price Competition Dominate Market Segmentation?," Journal of Industrial Economics, Wiley Blackwell, vol. 36(4), pages 431-442, June.
    33. Amit Gandhi & Luke Froeb & Steven Tschantz & Gregory J. Werden, 2008. "Post‐Merger Product Repositioning," Journal of Industrial Economics, Wiley Blackwell, vol. 56(1), pages 49-67, March.
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    Cited by:

    1. Marco A. Marini, 2018. "Collusive agreements in vertically differentiated markets," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume II, chapter 3, pages 34-56, Edward Elgar Publishing.
    2. Bos, Iwan & Marini, Marco A. & Saulle, Riccardo D., 2020. "Cartel formation with quality differentiation," Mathematical Social Sciences, Elsevier, vol. 106(C), pages 36-50.
    3. Gabszewicz, Jean J. & Marini, Marco A. & Tarola, Ornella, 2016. "Core existence in vertically differentiated markets," Economics Letters, Elsevier, vol. 149(C), pages 28-32.
    4. Gabszewicz Jean J. & Marini Marco A. & Tarola Ornella, 2019. "Endogenous Mergers in Markets with Vertically Differentiated Products," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 19(1), pages 1-22, January.
    5. Mantovani, Andrea & Tarola, Ornella & Vergari, Cecilia, 2016. "Hedonic and environmental quality: A hybrid model of product differentiation," Resource and Energy Economics, Elsevier, vol. 45(C), pages 99-123.
    6. Stanislav Stoykov & Ivan Kostov, 2023. "Price Competition with Differentiated Products on a Two-Dimensional Plane: The Impact of Partial Cartel on Firms’ Profits and Behavior," Games, MDPI, vol. 14(2), pages 1-25, March.

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    More about this item

    Keywords

    Vertically Differentiated Markets; Cannibalization; Market Pruning; Price Collusion.;
    All these keywords.

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L4 - Industrial Organization - - Antitrust Issues and Policies
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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