THE EFFECTIVENESS OF PIGOUVIAN TAXES IN REDUCING CARBON EMISSIONS
ピグー型炭素税のCO2排出削減効果 (AI 翻訳)
Rashad Tariyel ALIYEV
🤖 gxceed AI 要約
日本語
本研究はG7諸国を対象に、環境税（ピグー税）がCO₂排出削減に有効かを実証分析。1994～2014年のパネルデータを用いた推定の結果、環境税の1%上昇がCO₂排出量を約0.23%削減する効果が確認された。再生可能エネルギーの効果は有意でなかったが、環境税はエネルギー効率化や再エネ政策と併用することで有効な手段となり得る。
English
This study empirically examines the effectiveness of Pigouvian environmental/carbon taxes in reducing CO₂ emissions in G7 countries from 1994 to 2014. Using second-generation panel methods, it finds a long-run cointegration relationship and that a 1% increase in environmental tax reduces CO₂ emissions by approximately 0.23%. The results suggest that carbon taxes, combined with complementary energy efficiency and renewable energy policies, can be an effective tool for emission reduction.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でも低炭素社会づくり税が存在するが税率は低く、本稿は炭素税の効果を実証的に示しており、今後の税制強化の議論にエビデンスを提供する。G7共通の政策手段としての有効性を確認した点で、日本の政策立案にも示唆を与える。
In the global GX context
This paper provides empirical evidence that Pigouvian carbon taxes effectively reduce emissions in G7 economies, reinforcing the global case for carbon pricing as a key climate policy instrument. It supports frameworks like the IMF's carbon pricing proposals and informs discussions on carbon border adjustment mechanisms (CBAM) and national carbon tax designs.
👥 読者別の含意
🔬研究者:Provides panel data evidence on the elasticity of CO₂ emissions to environmental taxes, useful for meta-analyses or policy simulation models.
🏢実務担当者:Carbon-intensive firms in G7 countries can use these findings to anticipate the cost impact of carbon taxes and plan emission reduction investments.
🏛政策担当者:Offers empirical support for implementing or raising carbon taxes, emphasizing the need for complementary renewable energy policies.
📄 Abstract（原文）
Pigouvian-type environmental/carbon taxes, which aim to internalize negative externalities in the fight against global warming and climate change, are among the important policy tools. The aim of this study is to examine whether environmental taxes are effective in reducing CO₂ emissions in a sample of G7 countries. The analysis covers the period 1994–2014 due to the accessibility of environmental tax data. While the dependent variable is per capita CO₂ emission, per capita income, energy consumption, renewable energy consumption, and environmental tax are included in the model as the main explanatory variables. In line with the findings of cross-sectional dependence and heterogeneity, second-generation panel methods were preferred; after unit root and cointegration analyses, long-term coefficients were estimated using the Common Correlated Effects (CCE) approach. The findings show that there is a long-term cointegration relationship between the variables. According to the long-term coefficient estimates, the effect of income and energy consumption on CO₂ emissions is positive and statistically significant. While the impact of renewable energy consumption was found to be insignificant across the panel, the environmental tax was found to have a negative and significant effect on CO₂ emissions. Accordingly, a 1% increase in the environmental tax was found to reduce CO₂ emissions by approximately 0.23%. The results suggest that Pigouvian-type environmental/carbon taxes, when used in conjunction with complementary energy efficiency and renewable energy policies, can be an effective tool in emission reduction.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.54414/jozx5320first seen 2026-06-25 04:53:16
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