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Carbon Pricing Efficacy: Cross-Country Evidence

机译:碳定价疗效:越野证据

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To date there has been an absence of cross-country empirical studies on the efficacy of carbon pricing. In this paper we present estimates of the contribution of carbon pricing to reducing national carbon dioxide (CO2) emissions from fuel combustion, using several econometric modelling approaches that control for other key policies and for structural factors that are relevant for emissions. We use data for 142 countries over a period of two decades, 43 of which had a carbon price in place at the national level or below by the end of the study period. We find evidence that the average annual growth rate of CO(2)emissions from fuel combustion has been around 2 percentage points lower in countries that have had a carbon price compared to countries without. An additional euro per tonne of CO(2)in carbon price is associated with a reduction in the subsequent annual emissions growth rate of approximately 0.3 percentage points, all else equal. While it is impossible to fully control for all relevant influences on emissions growth, our estimates suggest that the emissions trajectories of countries with and without carbon prices tend to diverge over time.
机译:迄今为止,有没有关于碳定价的疗效的跨国实证研究。在本文中,我们使用若干计量经济学建模方法向减少燃料燃烧减少燃料燃烧的国家二氧化碳(二氧化碳)排放的估计,呈现碳定价对燃料燃烧的排放的贡献。我们在二十年内使用142个国家的数据,其中43个在国家一级或以下研究期间的碳价格或以下。我们发现有证据表明,燃料燃烧的二氧化碳的平均年增长率(2)股燃料燃烧的排放量达到了碳价格与未经碳价格的含量下降了2个百分点。碳价格下每吨CO(2)额外的欧元与后续年度排放增长率约为0.3个百分点,其他欧元的额外欧元兑美元汇率减少。虽然无法完全控制对排放增长的所有相关影响,但我们的估计表明,随着时间的推移,没有碳价格的国家的排放轨迹往往倾向于发散。

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