Threshold effects of renewable energy and environmental R&D on green growth: A dynamic panel analysis of OECD countries

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Energy Reports Pub Date : 2025-09-18 DOI:10.1016/j.egyr.2025.08.041

Khaled Mili , Ismail Bengana , Samir Aouini , Moussa Hezla

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Abstract

This study investigates the roles of renewable energy consumption and environmental R&D investment in promoting sustainable green growth across OECD countries. Using a comprehensive panel dataset spanning 35 OECD nations, we examine how renewable energy adoption and environmental research spending contribute to sustainability outcomes. The research employs the Augmented Mean Group (AMG) methodology to address cross-sectional dependence and heterogeneity in panel data analysis. Results demonstrate that renewable energy consumption has a significant positive impact on green growth (coefficient: 0.0099, p < 0.01), while revealing complex dynamics in the relationship between environmental R&D spending and sustainability outcomes (coefficient: −0.0011, p > 0.05). The study finds that the effectiveness of environmental initiatives depends more on implementation strategies than on research expenditure alone. These findings provide important insights into the differential impacts of renewable energy adoption and R&D investment on sustainable growth in developed economies. The research offers valuable implications for optimizing resource allocation between renewable energy deployment and environmental research initiatives in pursuing sustainability goals.

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可再生能源与环境研发对绿色增长的阈值效应：基于OECD国家的动态面板分析

本研究探讨了可再生能源消费和环境研发投资在促进经合组织国家可持续绿色增长中的作用。使用涵盖35个经合组织国家的综合面板数据集，我们研究了可再生能源的采用和环境研究支出如何促进可持续性成果。本研究采用增强平均组（AMG）方法来解决面板数据分析中的横断面依赖性和异质性。结果表明，可再生能源消费对绿色增长具有显著的正向影响（系数：0.0099,p <； 0.01），同时揭示了环境研发支出与可持续发展成果之间的复杂动态关系（系数：- 0.0011,p <； 0.05）。研究发现，环境倡议的有效性更多地取决于实施策略，而不仅仅是研究支出。这些发现为了解可再生能源采用和研发投资对发达经济体可持续增长的不同影响提供了重要见解。该研究为实现可持续发展目标的可再生能源部署和环境研究倡议之间的资源优化配置提供了有价值的启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy Reports Energy-General Energy

CiteScore

8.20

自引率

13.50%

发文量

2608

审稿时长

38 days

期刊介绍： Energy Reports is a new online multidisciplinary open access journal which focuses on publishing new research in the area of Energy with a rapid review and publication time. Energy Reports will be open to direct submissions and also to submissions from other Elsevier Energy journals, whose Editors have determined that Energy Reports would be a better fit.