帕累托改进碳风险税

IF 4.5 3区 经济学 Q1 ECONOMICS
Laurence Kotlikoff, Felix Kubler, Andrey Polbin, Simon Scheidegger
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引用次数: 0

摘要

人为气候变化产生两种概念上截然不同的负面经济外部性。第一个是预期的气候破坏路径。二是经济风险的预期路径,这也是本文的研究重点。为了隔离气候风险问题,我们在12个周期的世代重叠模型中考虑了三个平均零的对称冲击。这些冲击影响了肮脏能源的使用(碳排放)、碳浓度与温度之间的关系以及温度与损害之间的关系。通过构造,我们的模型在没有冲击的情况下显示出极小的气候问题。然而,由于非线性,对称冲击会产生负面的倾斜影响,包括潜在的气候灾害。正如我们所展示的,一般来说,改善帕累托的碳税可以显著降低气候风险,尤其是灾害风险。相关的气候风险税专门用于限制气候风险,其数额可能与碳平均损害税一样大,甚至可能大于碳平均损害税,而碳平均损害税专门用于限制平均损害。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pareto-improving carbon-risk taxation
Summary Anthropogenic climate change produces two conceptually distinct negative economic externalities. The first is an expected path of climate damage. The second, the focus of this paper, is an expected path of economic risk. To isolate the climate-risk problem, we consider three mean-zero, symmetric shocks in our 12-period, overlapping generations model. These shocks impact dirty energy usage (carbon emissions), the relationship between carbon concentration and temperature and the connection between temperature and damages. By construction, our model exhibits a de minimis climate problem absent its shocks. However, due to non-linearities, symmetric shocks deliver negatively skewed impacts, including the potential for climate disasters. As we show, Pareto-improving carbon taxation can dramatically lower climate risk, in general, and disaster risk, in particular. The associated climate-risk tax, which is focused exclusively on limiting climate risk, can be as large as, or larger than, the carbon average-damage tax, which is focused exclusively on limiting average damage.
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来源期刊
Economic Policy
Economic Policy ECONOMICS-
CiteScore
4.80
自引率
0.00%
发文量
41
期刊介绍: Economic Policy provides timely and authoritative analyses of the choices confronting policymakers. The subject matter ranges from the study of how individual markets can and should work to the broadest interactions in the world economy. Economic Policy features: Analysis of key issues as they emerge Views of top international economists Frontier thinking without technical jargon Wide-reaching coverage of worldwide policy debate
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