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Public Ownership and Trade Policy

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  • Ngo Van Long

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  • Frank Staehler

Abstract

This paper discusses the influence of public ownership on trade policy instruments. We demonstrate three important invariance results. First, the degree of public ownership affects neither the level of socially optimal activities nor welfare if the government chooses optimal trade policy instruments. Second, in the case of rivalry between domestic export firms, the optimal export tax is independent of the degree of public ownership. Third, in the case of rivalry in the home market, the optimal import tariff is independent of the degree of public ownership. In this case, the optimal production subsidy decreases with public ownership if the optimal tariff is positive. For the case of Cournot rivalry in a third market, the optimal export subsidy is an increasing function of the public ownership share, while in the case of Bertrand rivalry with differentiated products, the optimal export tax is an increasing function of that parameter. Cet article considère l’influence de la propriété publique sur les choix des politiques commerciales. Nous démontrons trois théorèmes sur l’invariance. Premièrement, le degré de la propriété publique n’a aucun impact sur le niveau des activités optimales si le gouvernement utilise les politiques commerciales optimales. Deuxièmement, dans le cas de concurrence entre les firmes qui exportent, le taux de taxe optimale est indépendant du degré de la propriété publique. Troisièmement, dans le cas de concurrence sur le marché domestique, le taux de tarif douanier optimal est indépendant du degré de la propriété publique. Dans le cas de concurrence à la Cournot sur un troisième marché, le taux d’aide optimale est une fonction croissante du pourcentage de la possession publique, tandis que dans le cas de concurrence à la Bertrand, le taux de taxe optimale en est une fonction décroissante.

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Bibliographic Info

Paper provided by CIRANO in its series CIRANO Working Papers with number 2007s-07.

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Date of creation: 01 Mar 2007
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Handle: RePEc:cir:cirwor:2007s-07

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Keywords: Semi-public firms; trade policy; Entreprises semi-publiques; politiques commerciales;

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  1. Andreas HaufLer & Guttorm Schjelderup & Frank Stähler, 2005. "Barriers to Trade and Imperfect Competition: The Choice of Commodity Tax Base," International Tax and Public Finance, Springer, vol. 12(3), pages 281-300, May.
  2. James A. Brander, 1995. "Strategic Trade Policy," NBER Working Papers 5020, National Bureau of Economic Research, Inc.
  3. de Fraja, Giovanni & Delbono, Flavio, 1989. "Alternative Strategies of a Public Enterprise in Oligopoly," Oxford Economic Papers, Oxford University Press, vol. 41(2), pages 302-11, April.
  4. James A. Brander & Barbara J. Spencer, 1983. "Trade Warfare: Tariffs and Cartels," NBER Working Papers 1193, National Bureau of Economic Research, Inc.
  5. Debashis Pal & Mark White, 2003. "Intra-Industry Trade And Strategic Trade Police In The Presence of Public Firms," International Economic Journal, Taylor & Francis Journals, vol. 17(4), pages 29-41.
  6. Debashis Pal & Mark D. White, 1998. "Mixed Oligopoly, Privatization, and Strategic Trade Policy," Southern Economic Journal, Southern Economic Association, vol. 65(2), pages 264-281, October.
  7. James A. Brander & Barbara J. Spencer, 1980. "Tariffs and the Extraction of Foreign Monopoly Rents under Potential Entry," Working Papers 414, Queen's University, Department of Economics.
  8. White, Mark D., 1996. "Mixed oligopoly, privatization and subsidization," Economics Letters, Elsevier, vol. 53(2), pages 189-195, November.
  9. Winston Chang, 2005. "Optimal Trade and Privatization Policies in an International Duopoly with Cost Asymmetry," The Journal of International Trade & Economic Development, Taylor & Francis Journals, vol. 14(1), pages 19-42.
  10. Bulow, Jeremy I & Geanakoplos, John D & Klemperer, Paul D, 1985. "Multimarket Oligopoly: Strategic Substitutes and Complements," Journal of Political Economy, University of Chicago Press, vol. 93(3), pages 488-511, June.
  11. Brander, James A. & Spencer, Barbara J., 1985. "Export subsidies and international market share rivalry," Journal of International Economics, Elsevier, vol. 18(1-2), pages 83-100, February.
  12. Jonathan Eaton & Gene M. Grossman, 1986. "Optimal Trade and Industrial Policy Under Oligopoly," NBER Working Papers 1236, National Bureau of Economic Research, Inc.
  13. Katrak, Homi, 1977. "Multi-national Monopolies and Commercial Policy," Oxford Economic Papers, Oxford University Press, vol. 29(2), pages 283-91, July.
  14. Kenneth Fjell & Debashis Pal, 1996. "A Mixed Oligopoly in the Presence of Foreign Private Firms," Canadian Journal of Economics, Canadian Economics Association, vol. 29(3), pages 737-43, August.
  15. Matsumura, Toshihiro, 1998. "Partial privatization in mixed duopoly," Journal of Public Economics, Elsevier, vol. 70(3), pages 473-483, December.
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