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Regional Climate Change Policy Under Positive Feedbacks and Strategic Interactions

机译：积极反馈和战略互动下的区域气候变化政策

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摘要

The surface albedo feedback, along with heat and moisture transport from the Equator to the Poles, is associated with polar amplification which is a well-established scientific fact. The present paper extends (Brock and Xepapadeas in Eur Econ Rev 94:263-282, 2017) to a non-cooperative framework with polar amplification, where regions decide emissions by maximizing own welfare. This can be regarded as a case of regional non-cooperation regarding climate change. Open loop and feedback solutions are derived and compared, in terms of temperature paths and welfare, with the cooperative solution. Carbon taxes which could bridge the gap between cooperative and non-cooperative emissions path are also derived. Finally, the framework is extended to a Ramsey set-up in which it is shown how the regional climate model can be coupled with standard optimal growth models. Numerical simulations confirm the theoretical results and provide insights about the size and the direction of deviations between the cooperative and the non-cooperative solutions.
机译：表面反照率反馈以及热量和水分从赤道到波兰的传输与极性放大有关，这是公认的科学事实。本论文（Brock and Xepapadeas in Eur Econ Rev 94：263-282，2017）扩展到具有极性放大作用的非合作框架，该区域通过最大化自身福利来决定排放量。这可以被视为区域在气候变化方面不合作的情况。得出开环和反馈解决方案，并在温度路径和福利方面与协作解决方案进行比较。还推导了可以弥合合作与非合作排放路径之间差距的碳税。最后，该框架扩展到Ramsey设置，其中显示了如何将区域气候模型与标准最佳增长模型结合在一起。数值模拟证实了理论结果，并提供了有关合作与非合作解决方案之间的差异的大小和方向的见解。

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