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Bradley & Gulati on Withdrawing from International Custom

By Lawrence Solum

Curtis A. Bradley and G. Mitu Gulati (Duke University - School of Law and Duke University - School of Law) have posted Withdrawing from International Custom on SSRN. Here is the abstract:

Treaties are negotiated, usually written down, and often subject to cumbersome domestic ratification processes. Nonetheless, nations often have the right to unilaterally withdraw from them. By contrast, the conventional wisdom is that nations never have the legal right to withdraw unilaterally from the unwritten rules of customary international law (?CIL?), a proposition that we refer to as the ?Mandatory View.? It is not obvious, however, why it should be easier to exit from treaties than from CIL, especially given the significant overlap that exists today between the regulatory coverage of treaties and CIL. In this Article, we consider both the intellectual history and functional desirability of the Mandatory View. We find that many international law publicists of the eighteenth and nineteenth centuries thought that CIL rules were sometimes subject to unilateral withdrawal, at least if a nation gave notice about its intent. We also find that the Mandatory View did not come to dominate international law commentary until sometime in the twentieth century, and even then there were significant uncertainties about how the Mandatory View would work in practice. After reviewing this history, we draw on theories developed with respect to contract law, corporate law, voting rules, and constitutional design to consider whether it is functionally desirable to restrict opt out rights to the extent envisioned by the Mandatory View. We conclude that, although there are arguments for restricting opt out in select areas of CIL, it is difficult to justify the Mandatory View as a general account of how CIL should operate.

Highly recommended.

Full post as published by Legal Theory Blog on December 21, 2009 (boomark / email).