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Customary International Law and Public Goods

Niels Petersen ()
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Niels Petersen: Max Planck Institute for Research on Collective Goods, Bonn

No 2015_05, Discussion Paper Series of the Max Planck Institute for Research on Collective Goods from Max Planck Institute for Research on Collective Goods

Abstract: The paper examines the potential of customary international law to protect global public goods. In particular, it focuses on the question whether customary law can contribute to the mitigation of climate change. The analysis proceeds in the three steps. First, it will have a closer look at the concept of public goods and common pool resources in economic theory and experimental economics. On this basis, the second section examines the formation of customary international law. The analysis shows that sustaining cooperation in multilateral settings through customary law is difficult. With regard to the mitigation of climate change, it is unlikely that states will coordinate on an equilibrium that will lead to a reduction of greenhouse gas emissions. The section then examines two further ways of identifying customary international law through moral interpretation and judicial lawmaking. However, the potential of these two avenues to protect global public goods effectively is rather limited. The final section analyzes the protection of global public goods through the initially unilateral extension of authority. One problem of global public goods is that states have shared authority over them. A solution might be to divide authority by extending the jurisdiction of the nation states. I will draw from an example concerning the protection of common pool resources, the protection of fish stocks, and analyze whether this example contains any lessons for the mitigation of climate change.

JEL-codes: K33 (search for similar items in EconPapers)
Date: 2015-02
New Economics Papers: this item is included in nep-ene, nep-env, nep-law and nep-res
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