OECDの持続可能エネルギー構成の決定要因としての金融・イノベーション・政策・不確実性のベイズ評価

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:ベイズPVARによる金融・イノベーション・政策・不確実性の統合モデルは、エネルギー移行の実証研究に新しい枠組みを提供する。

🏢実務担当者:政策の予見可能性とグリーンファイナンスの組み合わせが再エネ投資リターンに効くことを示し、長期調達・投資計画の根拠となる。

🏛政策担当者:政策の安定性と制度的信頼性が再エネ移行を加速するため、長期コミットメントと不確実性低減が政策設計の鍵となる。

The current study evaluates how policy uncertainty, green finance, green innovation, and environmental policy stringency affect the sustainable energy mix in OECD economies from 1996 through 2023. It fills an important gap in the existing literature, where these determinants have traditionally been viewed as independent rather than as part of a unified probabilistic model. In a given analysis, macro-policy uncertainty, climate-policy turbulence, financial variables, innovation, and regulatory intensity combine to form a single analytical framework, thereby addressing unanswered questions about how these variables interact to affect renewable-energy transitions. To address this weakness, the research questions include whether economic and global uncertainties asymmetrically harm sustainable energy development, whether climate-policy uncertainty can elicit positive behavioural responses, and whether green finance and innovation can counteract the harmful impact of uncertain policy regimes. The analytical methodology uses a set of Bayesian structures, including linear, heteroskedastic, multilevel, random-effects, and dynamic PVAR structures, to produce complete posterior distributions for each mechanism and to explain heterogeneity, feedback, and volatility across advanced economies. Findings show that there are continuously positive impacts of green finance, green innovation, and the tightness of environmental policy on renewable-energy growth; domestic and global uncertainties suppress growth and increase volatility. Climate-policy uncertainty, in turn, has a positive, stabilising effect within a credible institutional framework. The current study dynamically confirms that finance, innovation, and strict policy Granger-causally improve the energy mix, and it indicates a stable feedback mechanism in OECD entities. The experiment provides new evidence that the probabilistic interactions among financial mobilisation, technological capability, institutional credibility, and uncertainty environments govern sustainable-energy transitions, offering policy-designable insights to be acted upon to emphasise the roles of stability, long-term commitment, and the multifaceted acceleration of green innovation and investment.

• semanticscholar https://link.springer.com/content/pdf/10.1007/s11135-026-02791-1.pdffirst seen 2026-09-27 05:13:47 · last seen 2026-09-29 05:27:42