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Modelling the Extensive Margin of World Trade: New Evidence on GATT and WTO Membership

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  • Gabriel Felbermayr
  • Wilhelm Kohler

Abstract

Recent literature has argued that, contrary to the results of a seminal paper by Rose (2004), General Agreement on Tariffs and Trade (GATT)/World Trade Organization (WTO) membership does promote bilateral trade, at least for developed economies and if membership includes non-formal compliance. We review the literature to identify open issues. We then develop a simple extension of the gravity model that gives rise to an extensive country margin of trade separating positive trade from zero trade country pairs. The model is used to identify WTO membership effects at both the intensive and the extensive margins. Empirical estimation of this model, based on Poisson pseudo‐maximum likelihood methods with exporter and importer fixed effects, allows us to readdress the empirical issue of whether GATT/WTO membership does or does not promote trade. We find that GATT membership was successful on the extensive margin of world trade but not on the intensive margin. For the recent WTO episode (1995–2008), we find consistent and robust evidence for a substantial trade‐creating role of membership which is driven primarily by the intensive margin. WTO membership results in higher bilateral trade of about 40 per cent.

Suggested Citation

  • Gabriel Felbermayr & Wilhelm Kohler, 2010. "Modelling the Extensive Margin of World Trade: New Evidence on GATT and WTO Membership," The World Economy, Wiley Blackwell, vol. 33(11), pages 1430-1469, November.
  • Handle: RePEc:bla:worlde:v:33:y:2010:i:11:p:1430-1469
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    File URL: http://hdl.handle.net/10.1111/j.1467-9701.2010.01292.x
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    References listed on IDEAS

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    1. Mavroidis, Petros, 2007. "Trade in Goods," OUP Catalogue, Oxford University Press, number 9780199239030.
    2. Caroline Lesser, 2007. "Do Bilateral and Regional Approaches for Reducing Technical Barriers to Trade Converge Towards the Multilateral Trading System?," OECD Trade Policy Papers 58, OECD Publishing.
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    Cited by:

    1. Nelson, Douglas R., 2015. "Prospects for Constitutionalization of the WTO," World Trade Review, Cambridge University Press, vol. 14(01), pages 135-153, January.
    2. Sofiane Ghali & Habib Zitouna & Zouhour Karray & Slim Driss, 2013. "Effects of NTMs on the Extensive and Intensive Margins to Trade: The Case of Tunisia and Egypt," Working Papers 820, Economic Research Forum, revised Dec 2013.
    3. Jeffrey H. Bergstrand, 2013. "Measuring the Effects of Endogenous Policies on Economic Integration," CESifo Economic Studies, CESifo, vol. 59(2), pages 199-222, June.
    4. Prehn, Soren & Brümmer, Bernhard, 2011. "Estimation Issues in Single Commodity Gravity Trade Models," 2011 International Congress, August 30-September 2, 2011, Zurich, Switzerland 114776, European Association of Agricultural Economists.
    5. Wilhelm Kohler, 2010. "Das Spannungsfeld von Protektion, Liberalisierung und Freihandel," FIW Policy Brief series 008, FIW.
    6. Machado, José A.F. & Santos Silva, J.M.C. & Wei, Kehai, 2016. "Quantiles, corners, and the extensive margin of trade," European Economic Review, Elsevier, vol. 89(C), pages 73-84.
    7. Prehn, Sören & Brümmer, Bernhard, 2011. "Estimation issues in disaggregate gravity trade models," DARE Discussion Papers 1107, Georg-August University of Göttingen, Department of Agricultural Economics and Rural Development (DARE).
    8. Prehn, Soren & Brümmer, Bernhard, 2011. "Estimation Issues In Single Commodity Gravity Trade Models," 51st Annual Conference, Halle, Germany, September 28-30, 2011 114524, German Association of Agricultural Economists (GEWISOLA).

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