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Multilateral stability and efficiency of trade agreements: A network formation approach

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  • Nathalie Jorzik
  • Frank Mueller‐Langer

Abstract

We study the endogenous network formation of bilateral and multilateral trade agreements by means of hypergraphs and introduce the equilibrium concept of multilateral stability. We consider multicountry settings with a firm in each country that produces a homogeneous good and competes as a Cournot oligopolist in each market. Under endogenous tariffs, we find that a multilateral trade agreement governing the rules and norms of tariff setting, that is the WTO/GATT regime itself, together with a bilateral preferential trade agreement (PTA) is multilaterally stable. We also find that the existence of the WTO is necessary for the stability of the trading system. We further analyse the impact of PTAs on multilateral tariffs within the WTO. We find that the formation of PTAs increases countries' incentives for multilateral tariff reduction.

Suggested Citation

  • Nathalie Jorzik & Frank Mueller‐Langer, 2020. "Multilateral stability and efficiency of trade agreements: A network formation approach," The World Economy, Wiley Blackwell, vol. 43(2), pages 355-370, February.
    • Handle: RePEc:bla:worlde:v:43:y:2020:i:2:p:355-370
    DOI: 10.1111/twec.12896
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    Cited by:

    1. Chessa, Michela & Persenda, Arnaud & Torre, Dominique, 2023. "Brexit and Canadadvent: An application of graphs and hypergraphs to recent international trade agreements," International Economics, Elsevier, vol. 175(C), pages 1-12.
    2. Agnes Kügler & Andreas Reinstaller & Klaus S. Friesenbichler, 2023. "Can value chain integration explain the diverging economic performance within the EU?," Economia e Politica Industriale: Journal of Industrial and Business Economics, Springer;Associazione Amici di Economia e Politica Industriale, vol. 50(1), pages 25-47, March.
    3. Tsintsaris, Dimitris & Ioannidis, Evangelos, 2025. "Modeling structural power in hypergraphs: An application to the interstate alliances network," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 674(C).

    More about this item

    JEL classification:

    • F13 - International Economics - - Trade - - - Trade Policy; International Trade Organizations
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games

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