IDEAS home Printed from https://ideas.repec.org/p/kgu/wpaper/230.html
   My bibliography  Save this paper

How Do the Relative Superiority of a High-quality Good and Cost Inefficiency between Firms Affect Product Lines in Multiproduct Firms?

Author

Listed:
  • Tetsuya Shinkai

    (School of Economics, Kwansei Gakuin University)

  • Ryoma Kitamura

    (Faculty of Economics, Otemon Gakuin University)

Abstract

We consider the product line strategies of duopolistic firms, each of which can supply two vertically differentiated products under nonnegative output constraints and expectations of their rival's product line reaction. Considering a game of firms with heterogeneous (homogeneous) unit costs for high- (low-) quality products, we derive the equilibria of the game and explore the effects of the relative superiority of the high-quality product and relative cost efficiency on the equilibrium outcomes and illustrate the result using the production substitution of differentiated goods within a firm and the high-quality good between firms.

Suggested Citation

  • Tetsuya Shinkai & Ryoma Kitamura, 2021. "How Do the Relative Superiority of a High-quality Good and Cost Inefficiency between Firms Affect Product Lines in Multiproduct Firms?," Discussion Paper Series 230, School of Economics, Kwansei Gakuin University.
    • Handle: RePEc:kgu:wpaper:230
    as

    Download full text from publisher

    File URL: http://192.218.163.163/RePEc/pdf/kgdp230.pdf
    File Function: First version, 2021
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Motta, Massimo, 1993. "Endogenous Quality Choice: Price vs. Quantity Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 41(2), pages 113-131, June.
    2. Avner Shaked & John Sutton, 1990. "Multiproduct Firms and Market Structure," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 45-62, Spring.
    3. Kitamura, Ryoma & Shinkai, Tetsuya, 2015. "Product line strategy within a vertically differentiated duopoly," Economics Letters, Elsevier, vol. 137(C), pages 114-117.
    4. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
    5. Joan Calzada & Tommaso M. Valletti, 2012. "Intertemporal Movie Distribution: Versioning When Customers Can Buy Both Versions," Marketing Science, INFORMS, vol. 31(4), pages 649-667, July.
    6. Esther Gal-Or, 1983. "Quality and Quantity Competition," Bell Journal of Economics, The RAND Corporation, vol. 14(2), pages 590-600, Autumn.
    7. Bental, Benjamin & Spiegel, Menahem, 1984. "Horizontal product differentiation, prices and quantity selection of a multi-product monopolist," International Journal of Industrial Organization, Elsevier, vol. 2(2), pages 99-104, June.
    8. Lahiri, Sajal & Ono, Yoshiyasu, 1988. "Helping Minor Firms Reduces Welfare," Economic Journal, Royal Economic Society, vol. 98(393), pages 1199-1202, December.
    9. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
    10. Justin P. Johnson & David P. Myatt, 2018. "The determinants of product lines," RAND Journal of Economics, RAND Corporation, vol. 49(3), pages 541-573, September.
    11. Ryoma Kitamura & Tetsuya Shinkai, 2013. "The Economics of Cannibalization: A Duopoly in which Firms Supply Two Vertically Differentiated Products," Discussion Paper Series 100, School of Economics, Kwansei Gakuin University, revised Feb 2013.
    12. Ryoma Kitamura & Tetsuya Shinkai, 2014. "Cannibalization within the Single Vertically Di¤erentiated Duopoly," Discussion Paper Series 124, School of Economics, Kwansei Gakuin University, revised Dec 2014.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Tetsuya Shinkai & Ryoma Kitamura, 2019. "Production Substitution of Goods Within and Between Firms in a Multiproduct Duopoly," Discussion Paper Series 197, School of Economics, Kwansei Gakuin University.
    2. Ryoma Kitamura & Tetsuya Shinkai, 2014. "Cannibalization within the Single Vertically Di¤erentiated Duopoly," Discussion Paper Series 124, School of Economics, Kwansei Gakuin University, revised Dec 2014.
    3. Ryoma Kitamura & Tetsuya Shinkai, 2014. "Strategic Choice on Product Line in Vertically Differentiated Duopoly," Discussion Paper Series 120, School of Economics, Kwansei Gakuin University, revised Aug 2014.
    4. Tetsuya Shinkai & Ryoma Kitamura, 2018. "Product Line Strategy within a Vertically Differentiated Duopoly under Non-negativity Outputs Constraints," Discussion Paper Series 179, School of Economics, Kwansei Gakuin University.
    5. Ryoma Kitamura & Tetsuya Shinkai, 2015. "Product Line Strategy in a Vertically Di¤erentiated Duopoly," Discussion Paper Series 134, School of Economics, Kwansei Gakuin University, revised Aug 2015.
    6. Francisco Martínez-Sánchez, 2016. "Versioning Goods and Joint Purchase: Substitution and Complementarity Strategies," Prague Economic Papers, Prague University of Economics and Business, vol. 2016(5), pages 577-590.
    7. Gabszewicz, J. & Turrini, A., 2000. "Workers' skills, product quality and industry equilibrium," International Journal of Industrial Organization, Elsevier, vol. 18(4), pages 575-593, May.
    8. Cellini, Roberto & Siciliani, Luigi & Straume, Odd Rune, 2018. "A dynamic model of quality competition with endogenous prices," Journal of Economic Dynamics and Control, Elsevier, vol. 94(C), pages 190-206.
    9. Ngo Van Long & Zhuang Miao, 2020. "Multiple‐quality Cournot oligopoly and the role of market size," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 29(4), pages 932-952, October.
    10. Luigi Filippini, 1999. "Leapfrogging in a Vertical Product Differentiation Model," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 6(2), pages 245-256.
    11. Brekke, Kurt R. & Siciliani, Luigi & Straume, Odd Rune, 2010. "Price and quality in spatial competition," Regional Science and Urban Economics, Elsevier, vol. 40(6), pages 471-480, November.
    12. Jayet, Pierre-Alain & Fuentes-Castro, Daniel, 2002. "De l’utilité sociale du contrôle public de la qualité minimale des vins," Cahiers d'Economie et de Sociologie Rurales (CESR), Institut National de la Recherche Agronomique (INRA), vol. 62, pages 1-41.
    13. Long, Ngo Van & Miao, Zhuang, 2019. "Vertically Differentiated Cournot Oligopoly : Effects of Market Expansion and Trade Liberalization on Relative Markup and Product Quality," Discussion paper series HIAS-E-91, Hitotsubashi Institute for Advanced Study, Hitotsubashi University.
    14. Kitamura, Ryoma & Shinkai, Tetsuya, 2015. "Product line strategy within a vertically differentiated duopoly," Economics Letters, Elsevier, vol. 137(C), pages 114-117.
    15. De Fraja, Giovanni, 1996. "Product line competition in vertically differentiated markets," International Journal of Industrial Organization, Elsevier, vol. 14(3), pages 389-414, May.
    16. Yi-Ling Cheng & Shin-Kun Peng, 2012. "Quality and Quantity Competition in a Multiproduct Duopoly," Southern Economic Journal, John Wiley & Sons, vol. 79(1), pages 180-202, July.
    17. Qiu-Hong Wang & Kai-Lung Hui, 2017. "Technology Mergers and Acquisitions in the Presence of an Installed Base: A Strategic Analysis," Information Systems Research, INFORMS, vol. 28(1), pages 46-63, March.
    18. Brécard, Dorothée, 2010. "On production costs in vertical differentiation models," Economics Letters, Elsevier, vol. 109(3), pages 183-186, December.
    19. Belleflamme,Paul & Peitz,Martin, 2015. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9781107687899.
    20. Ryoma Kitamura & Tetsuya Shinkai, 2014. "Cannibalization may Allow a Cost-inefficient Firm to Earn more than a Cost-effcient Firm in a Duopoly with Two Vertically Differentiated Goods," Discussion Paper Series 113, School of Economics, Kwansei Gakuin University, revised Jan 2014.

    More about this item

    Keywords

    Multiproduct firm; Product line; Vertical product differentiation;
    All these keywords.

    JEL classification:

    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:kgu:wpaper:230. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Toshihiro Okada (email available below). General contact details of provider: https://edirc.repec.org/data/dekgujp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.