Assessing the Relative Climate Mitigation Effects of Energy Efficiency, Conventional Energy, and Environmental Taxes in Australia: Evidence from a Dynamic ARDL Model
オーストラリアにおけるエネルギー効率、従来エネルギー、環境税の相対的な気候緩和効果：動的ARDLモデルからの証拠 (AI 翻訳)
Eugene Misa Darko, Doris Arthur
🤖 gxceed AI 要約
日本語
1990〜2020年の豪州データを用い、動的ARDLモデルでCO2排出とエネルギー効率(EE)、環境関連税(ERT)、再生可能エネルギー(RE)、非再生可能エネルギー消費(EC)の関係を分析。短期的にはEEが最も大きな削減効果を示し、ERTとREも有意に排出を減らすが、長期的にはEE・ERT・REの効果は統計的に有意でなく、ECが排出を増加させる。政策としてEE推進の重要性を強調。
English
Using Australian data from 1990-2020 and a dynamic ARDL model, this study finds that energy efficiency (EE) has the largest short-run mitigating effect on CO2 emissions, followed by environmental taxes and renewables, while non-renewable energy consumption increases emissions. In the long run, only non-renewable consumption remains significant. The paper urges governments to prioritize EE as a core climate mitigation instrument.
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
日本では省エネ法やエネルギーミックス政策が重要であり、本論文のEEの短期的効果の実証は、日本の省エネ政策の有効性を支持する材料となる。また、環境税の効果が限定的である点は、日本の炭素税導入議論に示唆を与える。
In the global GX context
This paper contributes to global climate policy literature by providing empirical evidence on the relative effectiveness of energy efficiency versus environmental taxes and renewables in a developed economy. Its findings on short-run versus long-run effects are relevant for countries designing climate mitigation strategies under the Paris Agreement and aligning with ISSB disclosure requirements on transition risks.
👥 読者別の含意
🔬研究者:Provides empirical evidence on the short-run vs long-run effectiveness of EE, ERT, and RE in reducing CO2 emissions, useful for climate policy modeling.
🏢実務担当者:Highlights the importance of energy efficiency investments for immediate emissions reductions, which can inform corporate decarbonization strategies and disclosure.
🏛政策担当者:Suggests that energy efficiency policies may yield quicker mitigation results than environmental taxes, informing policy design.
📄 Abstract（原文）
Energy efficiency (EE) is integral to a sustainable energy system and can play a significant role in climate mitigation by reducing energy consumption and the adverse effects of climate change. This paper examines the association between CO2 emissions, EE, environmentally related taxes (ERTs), renewable energy (RE), and non-renewable energy consumption (EC) in Australia from 1990 to 2020. Using a dynamic ARDL model, the empirical findings show that adopting EE (β = −0.14, p = 0.000), ERT (β = −0.08, p = 0.071), and RE (β = −0.008, p = 0.007) is associated with lower carbon emissions, particularly in the short run. Conversely, EC impedes climate mitigation, as revealed by the substantial positive and significant coefficient of 1.4%. Notably, EE has the largest short-run coefficient among the mitigating variables, indicating that energy efficiency is the most significant mitigator of carbon emissions in Australia in the short run. The ARDL bounds test confirms the existence of a long-run equilibrium relationship among the variables. However, in the long run, EE, ERT, and RE do not mitigate carbon emissions, given their statistically insignificant coefficients, whereas EC remains strongly positively related to CO2 emissions. Results from the FMOLS and DOLS estimates largely support the ARDL findings, though some sensitivity is observed for ERT. Consequently, this paper proposes a comprehensive policy direction for governments and international organizations, emphasizing the importance of reducing energy intensity and promoting EE as core climate mitigation instruments to foster a green, sustainable environment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/en19163812first seen 2026-08-16 05:08:43
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