IDEAS home Printed from
   My bibliography  Save this article

Diversion et création d’échanges commerciaux dans le cadre du système canadien de préférences tarifaires


  • Ahmad, Jaleel

    (Université Concordia)


This paper explores in quantitative terms the potential effects on trade flows as a result of Canadian tariff preferences in favor of the developing countries instituted in 1974. The paper develops a model of trade creation and trade diversion due to preferences based on imperfect substitution, within each product category, between preference-granting, preference-receiving and non-preferred countries. This model depart from the usual assumption of the customs union theory that countries trade in perfect substitutes. The model is then applied to the 1978 trade date under BTN chapters 25 - 99 on a 4-digit classification. One major conclusion of the paper is that the assumption of perfect substitution tends to overstate the magnitude of trade creation and trade diversion, while the method based on less than perfect substitutability seems to offer more realistic estimates of the actual impact of trade preferences.

Suggested Citation

  • Ahmad, Jaleel, 1979. "Diversion et création d’échanges commerciaux dans le cadre du système canadien de préférences tarifaires," L'Actualité Economique, Société Canadienne de Science Economique, vol. 55(1), pages 68-81, janvier.
  • Handle: RePEc:ris:actuec:v:55:y:1979:i:1:p:68-81

    Download full text from publisher

    File URL:
    Download Restriction: no

    References listed on IDEAS

    1. Riedel, James, 1977. "Tariff concessions in the Kennedy Round and the structure of protection in West Germany : An econometric assessment," Journal of International Economics, Elsevier, vol. 7(2), pages 133-143, May.
    2. Morawetz, David, 1974. "Extra-union exports of industrial goods from customs unions among developing countries," Journal of Development Economics, Elsevier, vol. 1(3), pages 247-260, December.
    3. Verdoorn, P. J. & Schwartz, A. N. R., 1972. "Two alternative estimates of the effects of EEC and EFTA on the pattern of trade," European Economic Review, Elsevier, vol. 3(3), pages 291-335, November.
    Full references (including those not matched with items on IDEAS)

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ris:actuec:v:55:y:1979:i:1:p:68-81. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Bruce Shearer). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.