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General Equilibrium Assessment of Trade Liberalization Effects under Cournot Oligopoly Market Structures: The Case of Tunisia

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  • Rim Chatti

    (Ministère des Finances du Québec)

Abstract

In this paper we simulate the impact of removing all tariffs on imports under both competitive and Cournot oligopoly market structures with and without barriers to entry and exit. We find that trade liberalization induces welfare gains equal to 1 percent with perfect competition and 0.9 percent with increasing returns to scale, oligopoly and barriers to entry and exit, but welfare losses equal to 0.4 percent with free entry and exit. Sensitivity analysis shows that welfare losses depend on elasticities of substitution between imported and domestic goods and cost disadvantage ratios.

Suggested Citation

  • Rim Chatti, 2000. "General Equilibrium Assessment of Trade Liberalization Effects under Cournot Oligopoly Market Structures: The Case of Tunisia," Working Papers 2009, Economic Research Forum, revised 03 2000.
    • Handle: RePEc:erg:wpaper:2009
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    References listed on IDEAS

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    1. Harris, Richard, 1984. "Applied General Equilibrium Analysis of Small Open Economies with Scale Economies and Imperfect Competition," American Economic Review, American Economic Association, vol. 74(5), pages 1016-1032, December.
    2. Devarajan, Shantayanan & Rodrik, Dani, 1991. "Pro-competitive effects of trade reform : Results from a CGE model of Cameroon," European Economic Review, Elsevier, vol. 35(5), pages 1157-1184, July.
    3. Dani Rodrik, 1988. "Imperfect Competition, Scale Economies, and Trade Policy in Developing Countries," NBER Chapters, in: Trade Policy Issues and Empirical Analysis, pages 109-144, National Bureau of Economic Research, Inc.
    4. Robert E. Baldwin, 1988. "Trade Policy Issues and Empirical Analysis," NBER Books, National Bureau of Economic Research, Inc, number bald88-2.
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    Cited by:

    1. Chatti Rim, 2003. "A CGE Assessment of FTA Between Tunisia and the EU Under Oligopolistic Market Structures," Review of Middle East Economics and Finance, De Gruyter, vol. 1(2), pages 1-30, August.
    2. Konan, Denise Eby & Maskus, Keith E., 2006. "Quantifying the impact of services liberalization in a developing country," Journal of Development Economics, Elsevier, vol. 81(1), pages 142-162, October.
    3. GAUTHIER Fatima, EL HADAD & Etienne, MONTAIGNE & Michel, PETIT & Hilel, HAMADACHE & Soliman, Ibrahim & Mashhour, Ahmed & Gaber, Mohamed & Ait El Mekki, Akka & El Hindi, Atieh & Thabet, Haitham & Thabe, 2011. "A review of the national and international agro-food policies and institutions in the Mediterranean Region," MPRA Paper 66801, University Library of Munich, Germany.

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