空间热传输下的气候政策：合作与非合作区域结果
Climate Policy under Spatial Heat Transport: Cooperative and Noncooperative Regional Outcomes
摘要：
我们建立了一个新的随机动态区域综合评估模型（IAM）的气候和经济系统，包括一些重要的气候科学元素，在大多数IAM的缺失。这些因素是从赤道到两极的空间热传输、海平面上升、永久冻土融化和临界点。本文研究了两个地区（北方和热带南方）在风险和递归效用下的合作和不合作的最优策略。我们介绍了一种新的通用计算算法来寻找反馈纳什均衡。我们的研究结果表明，当气候科学的要素被忽视时，重要的政策变量，如最佳区域碳税和适应可能会严重偏差。我们还发现，区域碳税是显着较小的反馈纳什均衡比在社会规划者的问题，在每个地区，北部有较高的碳税比热带南部。
英文摘要：
We build a novel stochastic dynamic regional integrated assessment model (IAM) of the climate and economic system including a number of important climate science elements that are missing in most IAMs. These elements are spatial heat transport from the Equator to the Poles, sea level rise, permafrost thaw and tipping points. We study optimal policies under cooperation and noncooperation between two regions (the North and the Tropic-South) in the face of risks and recursive utility. We introduce a new general computational algorithm to find feedback Nash equilibrium. Our results suggest that when the elements of climate science are ignored, important policy variables such as the optimal regional carbon tax and adaptation could be seriously biased. We also find the regional carbon tax is significantly smaller in the feedback Nash equilibrium than in the social planner's problem in each region, and the North has higher carbon taxes than the Tropic-South.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
