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Simultaneous Price Changes, Information Acquisition On Common Competitors And Welfare

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  • MINORU KITAHARA
  • TOSHIHIRO MATSUMURA

Abstract

We investigate a model where two firms choose whether to acquire information on a common competitor. We find that strategic complementarity on information acquisition exists, yielding multiple equilibria. In addition, we investigate welfare implication of information acquisition. We find that information acquisition reduces both consumer surplus and the total profits of the firms.

Suggested Citation

  • Minoru Kitahara & Toshihiro Matsumura, 2008. "Simultaneous Price Changes, Information Acquisition On Common Competitors And Welfare," Australian Economic Papers, Wiley Blackwell, vol. 47(4), pages 389-395, December.
    • Handle: RePEc:bla:ausecp:v:47:y:2008:i:4:p:389-395
    DOI: 10.1111/j.1467-8454.2008.00356.x
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    References listed on IDEAS

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    1. Masahiro Okuno-Fujiwara & Andrew Postlewaite & Kotaro Suzumura, 1990. "Strategic Information Revelation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 57(1), pages 25-47.
    2. Sajal Lahiri & Yoshiyasu Ono, 1997. "Asymmetric oligopoly, international trade, and welfare: a synthesis," Journal of Economics, Springer, vol. 65(3), pages 291-310, October.
    3. Lahiri, Sajal & Ono, Yoshiyasu, 1998. "Foreign Direct Investment, Local Content Requirement, and Profit Taxation," Economic Journal, Royal Economic Society, vol. 108(447), pages 444-457, March.
    4. Boyan Jovanovic, 1982. "Truthful Disclosure of Information," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 36-44, Spring.
    5. Esther Hauk & Sjaak Hurkens, 2001. "Secret information acquisition in Cournot markets," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 18(3), pages 661-681.
    6. Sakai, Yasuhiro, 1985. "The value of information in a simple duopoly model," Journal of Economic Theory, Elsevier, vol. 36(1), pages 36-54, June.
    7. Lahiri, Sajal & Ono, Yoshiyasu, 1988. "Helping Minor Firms Reduces Welfare," Economic Journal, Royal Economic Society, vol. 98(393), pages 1199-1202, December.
    8. Dan Sasaki, 2001. "The value of information in oligopoly with demand uncertainty," Journal of Economics, Springer, vol. 73(1), pages 1-23, February.
    9. Matsumura, Toshihiro, 1998. "Partial privatization in mixed duopoly," Journal of Public Economics, Elsevier, vol. 70(3), pages 473-483, December.
    10. repec:bla:econom:v:49:y:1982:i:193:p:11-20 is not listed on IDEAS
    11. Richard E. Baldwin & Toshihiro Okubo, 2006. "Heterogeneous firms, agglomeration and economic geography: spatial selection and sorting," Journal of Economic Geography, Oxford University Press, vol. 6(3), pages 323-346, June.
    12. Koji Ishibashi, 2001. "Strategic delegation under quality competition," Journal of Economics, Springer, vol. 73(1), pages 25-56, February.
    13. Noriaki Matsushima & Toshihiro Matsumura, 2003. "Mixed oligopoly and spatial agglomeration," Canadian Journal of Economics, Canadian Economics Association, vol. 36(1), pages 62-87, February.
    14. Minoru Kitahara & Toshihiro Matsumura, 2006. "Realized Cost‐Based Subsidies For Strategic R&D Investments With Ex Ante And Ex Post Asymmetries," The Japanese Economic Review, Japanese Economic Association, vol. 57(3), pages 438-448, September.
    15. Lahiri, S. & Ono, Y., 1998. "Export-Oriented Foreign Direct Investment and Local Content Requirement," ISER Discussion Paper 0456, Institute of Social and Economic Research, Osaka University.
    16. Raith, Michael, 1996. "A General Model of Information Sharing in Oligopoly," Journal of Economic Theory, Elsevier, vol. 71(1), pages 260-288, October.
    17. Toshihiro Matsumura, 2003. "Consumer‐benefiting exclusive territories," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 36(4), pages 1007-1025, November.
    18. Yoshiaki Ushio, 2000. "Welfare Effects of Commodity Taxation in Cournot Oligopoly," The Japanese Economic Review, Japanese Economic Association, vol. 51(2), pages 268-273, June.
    19. Steven Shavell, 1994. "Acquisition and Disclosure of Information Prior to Sale," RAND Journal of Economics, The RAND Corporation, vol. 25(1), pages 20-36, Spring.
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