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Interregional mixed duopoly

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  • Inoue, Tomohiro
  • Kamijo, Yoshio
  • Tomaru, Yoshihiro

Abstract

We investigate an interregional mixed duopoly wherein a local public firm competes against a private firm. We employ a spatial model with price competition. The public firm is owned by the local government of the left half of the linear city called Region 1, and maximizes its welfare. We demonstrate that our two-stage game comprising location choice and price competition has two types of equilibria. In one equilibrium (E1), the local public firm locates in Region 1, and the private firm locates outside the region. In the other equilibrium (E2), both firms are located in Region 1. We find that although the two firms are closely located in E2, E2 payoff-dominates E1. Moreover, E2 is robust in the sense that the sequential choice of location adopts this equilibrium, regardless of whether the public firm is a leader or a follower.

Suggested Citation

  • Inoue, Tomohiro & Kamijo, Yoshio & Tomaru, Yoshihiro, 2009. "Interregional mixed duopoly," Regional Science and Urban Economics, Elsevier, vol. 39(2), pages 233-242, March.
    • Handle: RePEc:eee:regeco:v:39:y:2009:i:2:p:233-242
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    1. Toshihiro Matsumura & Yoshihiro Tomaru, 2015. "Mixed duopoly, location choice, and shadow cost of public funds," Southern Economic Journal, John Wiley & Sons, vol. 82(2), pages 416-429, October.
    2. Juan Carlos Bárcena-Ruiz & F. Javier Casado-Izaga, 2020. "Partial ownership of local firms and zoning of neighboring towns," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 65(1), pages 27-43, August.
    3. Hiroshi Aiura & Yasuo Sanjo, 2010. "Privatization of local public hospitals: effect on budget, medical service quality, and social welfare," International Journal of Health Economics and Management, Springer, vol. 10(3), pages 275-299, September.
    4. Bárcena-Ruiz, Juan Carlos & Garzón, María Begoña, 2020. "Mergers between local public firms," The North American Journal of Economics and Finance, Elsevier, vol. 51(C).
    5. Ming Lin & Toshihiro Matsumura, 2012. "Presence of foreign investors in privatized firms and privatization policy," Journal of Economics, Springer, vol. 107(1), pages 71-80, September.
    6. Xu, Lili & Matsumura, Toshihiro, 2023. "Market transparency in a mixed oligopoly," MPRA Paper 118415, University Library of Munich, Germany.
    7. Juan Bárcena Ruiz & F. Casado-Izaga & Hamid Hamoudi, 2014. "Optimal zoning of a mixed duopoly," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 52(1), pages 141-153, January.
    8. Wang, Leonard F.S. & Tomaru, Yoshihiro, 2015. "The feasibility of privatization and foreign penetration," International Review of Economics & Finance, Elsevier, vol. 39(C), pages 36-46.
    9. Juan Carlos Bárcena-Ruiz & F. Javier Casado-Izaga, 2020. "Partial ownership of local firms and zoning of neighboring towns," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 65(1), pages 27-43, August.
    10. Jie Shuai, 2017. "Mixed Duopoly with a Partial-Delegated-Public Firm," Manchester School, University of Manchester, vol. 85(3), pages 339-356, June.
    11. Juan Carlos Bárcena-Ruiz & F. Javier Casado-Izaga, 2018. "Optimal size of a residential area within a municipality," Journal of Economics, Springer, vol. 124(1), pages 75-92, May.
    12. Jie Shuai, 2017. "A comment on mixed oligopoly spatial model: the non-uniform consumer distribution," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 5(1), pages 57-63, April.
    13. Takeshi Ebina & Toshihiro Matsumura & Daisuke Shimizu, 2009. "Mixed oligopoly and spatial agglomeration in quasi-linear city," Economics Bulletin, AccessEcon, vol. 29(4), pages 2722-2729.
    14. Juan Bárcena-Ruiz & F. Casado-Izaga, 2012. "Location of public and private firms under endogenous timing of choices," Journal of Economics, Springer, vol. 105(2), pages 129-143, March.
    15. Hikaru Ogawa & Yasuo Sanjo, 2011. "Market integration and location choice: a mixed oligopoly approach," Letters in Spatial and Resource Sciences, Springer, vol. 4(3), pages 157-166, October.
    16. Hongkun Ma & X. Henry Wang & Chenhang Zeng, 2021. "Location choice and costly product differentiation in a mixed duopoly," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 66(1), pages 137-159, February.

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