文章基本信息

标题：Incentives and Stability of International Climate Coalitions: An Integrated Assessment
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作者：Bosetti, Valentina ; Carraro, Carlo ; De Cian, Enrica 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2011
出版社：Journal of Agribusiness
摘要：This paper analyses the incentives to participate in and the stability of international climate coalitions. Using the integrated assessment model WITCH, the analysis of coalitions’ profitability and stability is performed under alternative assumptions concerning the pure rate of time preference, the social welfare aggregator and the extent of climate damages. We focus on the profitability, stability, and “potential stability” of a number of coalitions which are “potentially effective” in reducing emissions. We find that only the grand coalition under a specific sets of assumptions finds it optimal to stabilise GHG concentration below 550 ppm CO2-eq. However, the grand coalition is found not to be stable, not even “potentially stable” even through an adequate set of transfers. However, there exist potentially stable coalitions, but of smaller size, which are also potentially environmentally effective. Depending on the assumptions made, they could achieve up to 600 ppm CO2-eq. More ambitious targets lead to the collapse of the coalition.
关键词：Climate Policy;Climate Coalition;Game Theory;Free Riding