A DSGE Analysis of Japan’s Energy Policy and Sustainable Economic Development
日本のエネルギー政策と持続可能な経済発展に関するDSGE分析 (AI 翻訳)
Mohammed Moosa Ageli
🤖 gxceed AI 要約
日本語
本研究はDSGEモデルを用いて、日本の炭素税、再生可能エネルギー補助金、エネルギー効率改善の経済・環境影響を分析。炭素税は排出量を6.8%削減するが、GDPと厚生を低下させる。補助金はGDPと厚生を押し上げつつ排出を3.2%削減。エネルギー効率改善はGDPと厚生を増加させつつ排出を2.5%削減し、最もバランスの取れた政策である。政策ミックスが最適と結論。
English
This study uses a DSGE model to evaluate Japan's energy policies: carbon tax, renewable subsidy, and energy efficiency improvements. Carbon tax reduces emissions by 6.8% but lowers output and welfare. Subsidy reduces emissions by 3.2% while supporting output and welfare. Energy efficiency boosts output and welfare with a 2.5% emission reduction, showing decoupling. A policy mix is recommended for Japan's decarbonization targets.
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
本論文は、日本のエネルギー政策（炭素税・補助金・効率改善）を統一的なマクロモデルで比較評価し、政策ミックスの重要性を示す点で、日本のGX推進やSSBJに基づく投資家対応に示唆を与える。特に、炭素価格とエネルギー効率の組み合わせが経済成長を損なわずに脱炭素を達成する鍵となる。
In the global GX context
This paper provides a rigorous macroeconomic comparison of carbon pricing, renewable subsidies, and energy efficiency in Japan, contributing to global debates on policy mix design for decarbonization. The DSGE framework offers transferable insights for economies balancing emission reductions with growth and welfare.
👥 読者別の含意
🔬研究者:Provides calibrated parameters and welfare effects of energy policies in a DSGE model, useful for macro-energy modelers and policy simulation studies.
🏛政策担当者:Quantifies trade-offs between carbon tax, subsidies, and efficiency improvements, informing Japan's policy mix design for 2030/2050 targets.
📄 Abstract（原文）
This study examines the impact of Japan’s energy policy on sustainable economic growth from 2005 to 2025. The analysis involved adding carbon externalities to a DSGE model to evaluate the effects of a carbon tax, a renewable energy subsidy, and energy-efficiency improvements. All policies are uniformly assessed within a unified, dynamic, micro-founded macroeconomic model that links energy use and emissions. According to the empirical findings, the carbon tax is the most effective policy for reducing emissions (6.8%). Nonetheless, this improvement incurs economic costs, as output and welfare fall by 0.85% and 0.35%, respectively. Renewable energy subsidies have no unbalanced effect. They reduce emissions by 3.2%. However, they support output by 0.42% and welfare by 0.28%. It occurs through substitution and investment effects. The most prominent outcomes of energy-efficient design are 1.2% increase in output, 0.75% increase in welfare, and 2.5% decrease in emissions. It also indicates the degree of decoupling. The carbon price is vital to achieving decarbonization; however, policies that support improved energy efficiency and clean energy could be accompanied by differential pricing. Findings indicate that a coordinated policy mix would be most effective for Japan in meeting emissions targets without harming growth or improving welfare.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/en19112626first seen 2026-06-19 04:39:43
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