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2014.005 Working Papers "Note di lavoro"

The Stability and Effectiveness of Climate Coalitions: A Comparative Analysis of Multiple Integrated Assessment Models

 
Authors: Kai Lessmann, Ulrike Kornek, Valentina Bosetti, Rob Dellink, Johannes Emmerling, Johan Eyckmans, Miyuki Nagashima, Hans-Peter Weikard, Zili Yang

Series: Climate Change and Sustainable Development

Keywords: Coalition Stability, International Environmental Agreements, Numerical modeling, Transfers

JEL n.: Q5, Q58, C7

Published in: Journal of Environmental and Resource Economics 02/2015 -> go to

Abstract

In this paper we report results from a comparison of numerically calibrated game theoretic integrated assessment models that explore stability and performance of international coalitions for climate change mitigation. Specifically, by means of this ensemble of models we are able to identify robust results concerning incentives of nations to commit themselves to a climate agreement, and to estimate what stable agreements can achieve in terms of greenhouse gas mitigation. We also assess the potential  of transfers that redistribute the surplus of cooperation in order to foster stability of  climate coalitions. In contrast to much of the existing analytical game theoretical literature, we find substantial scope for self-enforcing climate coalitions in most models  that close much of the abatement and welfare gap between complete absence of cooperation and full cooperation. This more positive message follows from the use of  transfer schemes that are designed to counteract free riding incentives.

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Suggested citation: Lessmann, K., U. Kornek, V. Bosetti, R. Dellink, J. Emmerling, J. Eyckmans, M. Nagashima, H.P. Weikard, Zili Yang, (2014), 'The Stability and Effectiveness of Climate Coalitions: A Comparative Analysis of Multiple Integrated Assessment Models', J Environmental and Resource Economics, 2015, http://rd.springer.com/article/10.1007/s10640-015-9886-0#.



 
 
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