IDEAS home Printed from
   My bibliography  Save this paper

Stability and Change in International Customary Law


  • Francesco Parisi

    (George Mason University)


While customary law is capable of creating universally binding rules, the rules that govern its formation allow states to gain an exemption from emerging norms of customary law by remaining persistent objectors. This form of objection requires the objecting state to take express action to oppose an emerging practice by making its objections widely known before the practice solidifies into a binding rule of custom. Likewise, after the custom is formed states have an opportunity to express an objection or depart from it. In this latter case, the departing state does not obtain an exemption from the binding custom unless other states acquiesce to its departure. We model the effects of persistent objector and subsequent objector doctrines in the formation and change of customary law when heterogeneous states are involved.

Suggested Citation

  • Francesco Parisi, 2004. "Stability and Change in International Customary Law," CAE Working Papers 18, Aix-Marseille Université, CERGAM.
  • Handle: RePEc:cgm:wpaper:18

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a search for a similarly titled item that would be available.

    Other versions of this item:

    References listed on IDEAS

    1. Vincy Fon & Francesco Parisi, 2003. "Reciprocity-Induced Cooperation," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 159(1), pages 1-76, March.
    2. Binmore, K. & Samuelson, L., 1993. "An Economist's Perspective on the Evolution of Norms," Working papers 9323, Wisconsin Madison - Social Systems.
    Full references (including those not matched with items on IDEAS)


    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.

    Cited by:

    1. Emanuela Carbonara & Francesco Parisi, "undated". "The Economics of Legal Harmonization," German Working Papers in Law and Economics 2006-1-1149, Berkeley Electronic Press.

    More about this item


    Customary law; Persistent Objector; Subsequent Objector; Norms.;

    JEL classification:

    • K10 - Law and Economics - - Basic Areas of Law - - - General (Constitutional Law)
    • K33 - Law and Economics - - Other Substantive Areas of Law - - - International Law
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General


    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:cgm:wpaper:18. 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: (Mathieu Bédard). 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.