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Climate coalitions : a theoretical and computational appraisal

  • Thierry, BRECHET

    (UNIVERSITE CATHOLIQUE DE LOUVAIN, Department of Economics)

  • François, GERARD
  • Henry, TULKENS

Using an updated version of the CWS model (introduced by Eyckmans and Tulkens in Resource and Energy Economics 2003), this paper intends to evaluate with numbers the respective merits of two competing notions of coalition stability in the standard global public goods model as customarily applied to the climate change problem. After a reminder of the model structure and of the definition of the two game theoretical stability notions involved - namely, core stabiilty and internal-external stability, the former property is shown to hold for the grand coalition in the CWS model only if resource transfers of a specific form between countries are introduced. It is further shown that while the latter property holds neither for the grand coalition nor for most large coalitions, it is nevertheless verified in a weak sense that involves transfers (dubbed “potential internal stabilityâ€) for most small coalitions. The reason for this difference is brought to light, namely the differing rationale that inspires the transfers in either case. Finally, it is shown that the stable coalitions that perform best (in termes of carbon concentration and global welfare) always are composed of both industrialized and developing countries. Two sensitivity analyses confirm the robustness of all these results.

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Paper provided by Université catholique de Louvain, Département des Sciences Economiques in its series Discussion Papers (ECON - Département des Sciences Economiques) with number 2007006.

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Length: 25
Date of creation: 01 Feb 2007
Date of revision:
Handle: RePEc:ctl:louvec:2007006
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  1. Johan Eyckmans & Michael Finus, 2004. "An Almost Ideal Sharing Scheme for Coalition Games with Externalities," Energy, Transport and Environment Working Papers Series ete0414, Katholieke Universiteit Leuven, Centrum voor Economische Studiën, Energy, Transport and Environment.
  2. Carraro, Carlo & Siniscalco, Domenico, 1991. "Strategies for the International Protection of the Environment," CEPR Discussion Papers 568, C.E.P.R. Discussion Papers.
  3. Parkash Chander & Henry Tulkens, 2006. "Cooperation, Stability And Self- Enforcement In International Environmental Agreements : A Conceptual Discussion," Microeconomics Working Papers 22565, East Asian Bureau of Economic Research.
  4. Claude d'Aspremont & Alexis Jacquemin & Jean Jaskold Gabszewicz & John A. Weymark, 1983. "On the Stability of Collusive Price Leadership," Canadian Journal of Economics, Canadian Economics Association, vol. 16(1), pages 17-25, February.
  5. Carlo Carraro & Johan Eyckmans & Michael Finus, 2006. "Optimal transfers and participation decisions in international environmental agreements," The Review of International Organizations, Springer, vol. 1(4), pages 379-396, December.
  6. Chander, Parkash & Tulkens, Henry, 1994. "The Core of an Economy With Multilateral Environmental Externalities," Working Papers 886, California Institute of Technology, Division of the Humanities and Social Sciences.
  7. Barrett, Scott, 1994. "Self-Enforcing International Environmental Agreements," Oxford Economic Papers, Oxford University Press, vol. 46(0), pages 878-94, Supplemen.
  8. EYCKMANS, Johan & TULKENS, Henry, 1999. "Simulating coalitionally stable burden sharing agreements for the climate change problem," CORE Discussion Papers 1999026, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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