Relationships between green technological innovation, renewable energy, circular economy, and green growth

This study employs the panel smooth threshold autoregression model to data spanning 27 European Union (EU) member states from 2000 to 2022 to investigate the nonlinear relationships between green growth and green technological innovation. This approach enables our examination of the dynamics of econ...

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Main Authors: Afef BOUATTOUR, Sarra GHARBI, Maha KALAI, Kamel HELALI
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Journal of Innovation & Knowledge
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Online Access:http://www.sciencedirect.com/science/article/pii/S2444569X25000939
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author Afef BOUATTOUR
Sarra GHARBI
Maha KALAI
Kamel HELALI
author_facet Afef BOUATTOUR
Sarra GHARBI
Maha KALAI
Kamel HELALI
author_sort Afef BOUATTOUR
collection DOAJ
description This study employs the panel smooth threshold autoregression model to data spanning 27 European Union (EU) member states from 2000 to 2022 to investigate the nonlinear relationships between green growth and green technological innovation. This approach enables our examination of the dynamics of economies’ rise from weakness to strength. This investigation introduces a comprehensive framework that combines green technological innovation, renewable energy sources, and the circular economy into a single green growth model. The results confirm two optimal thresholds that impact how green technological innovation affects green growth, distinguishing between the three regimes. Additionally, the results demonstrate the positive influence of green technological innovation on green growth. In contrast, the study reveals a weaker effect with increasing levels of green technological innovation transitions from intermediate (Regime 2) to high (Regime 3) green growth. Furthermore, insufficient green technological innovation has not developed effective renewable energy technologies that can foster green growth. Conversely, renewable energy begins to positively affect green growth when EU countries increase green technological innovation investment. Finally, a robust regime of green technological innovation facilitates circularity and promotes EU economies’ green growth, indicating that the influence of the circular economy on green growth depends on increased green technological innovation. Practically, policymakers in EU economies should focus on sustainable innovation to promote green growth and advance the United Nations Sustainable Development Goals.
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spelling doaj-art-ded00ca784f04d7487e77f299550cedd2025-08-20T03:10:25ZengElsevierJournal of Innovation & Knowledge2444-569X2025-07-0110410074810.1016/j.jik.2025.100748Relationships between green technological innovation, renewable energy, circular economy, and green growthAfef BOUATTOUR0Sarra GHARBI1Maha KALAI2Kamel HELALI3Assistant Professor in Economics. Higher Institute of Business Administration of Sfax, University of Sfax. Economics and Management Research Laboratory. Airport Road km 4, B.P. 1013-3018, Sfax, TunisiaPh.D. in Economics. Faculty of Economics and Management of Sfax, University of Sfax. Research Laboratory in Competitiveness, Commercial Decisions and Internationalization. Airport Road km 4.5, B.P. 1088-3018, Sfax, TunisiaAssistant Professor in Quantitative Methods. Faculty of Economics and Management of Sfax, University of Sfax. Research Laboratory in Competitiveness, Commercial Decisions and Internationalization. Airport Road km 4.5, B.P. 1088-3018, Sfax, TunisiaFull Professor in Quantitative Methods. Department of Applied Quantitative Methods, Faculty of Economics and Management of Sfax, University of Sfax. Research Laboratory in Competitiveness, Commercial Decisions and Internationalization. Airport Road km 4.5, B.P. 1088-3018, Sfax, Tunisia; Corresponding author at: Full Professor in Quantitative Methods. Department of Applied Quantitative Methods, Faculty of Economics and Management of Sfax. University of Sfax. Airfield Road Km 4, BP 1088-3018, Rack no: 188. Research Laboratory in Competitiveness, Commercial Decisions and Internationalization. Airport Road km 4.5, B.P. 1088-3018, Sfax, Tunisia.This study employs the panel smooth threshold autoregression model to data spanning 27 European Union (EU) member states from 2000 to 2022 to investigate the nonlinear relationships between green growth and green technological innovation. This approach enables our examination of the dynamics of economies’ rise from weakness to strength. This investigation introduces a comprehensive framework that combines green technological innovation, renewable energy sources, and the circular economy into a single green growth model. The results confirm two optimal thresholds that impact how green technological innovation affects green growth, distinguishing between the three regimes. Additionally, the results demonstrate the positive influence of green technological innovation on green growth. In contrast, the study reveals a weaker effect with increasing levels of green technological innovation transitions from intermediate (Regime 2) to high (Regime 3) green growth. Furthermore, insufficient green technological innovation has not developed effective renewable energy technologies that can foster green growth. Conversely, renewable energy begins to positively affect green growth when EU countries increase green technological innovation investment. Finally, a robust regime of green technological innovation facilitates circularity and promotes EU economies’ green growth, indicating that the influence of the circular economy on green growth depends on increased green technological innovation. Practically, policymakers in EU economies should focus on sustainable innovation to promote green growth and advance the United Nations Sustainable Development Goals.http://www.sciencedirect.com/science/article/pii/S2444569X25000939G01G21M14Q50
spellingShingle Afef BOUATTOUR
Sarra GHARBI
Maha KALAI
Kamel HELALI
Relationships between green technological innovation, renewable energy, circular economy, and green growth
Journal of Innovation & Knowledge
G01
G21
M14
Q50
title Relationships between green technological innovation, renewable energy, circular economy, and green growth
title_full Relationships between green technological innovation, renewable energy, circular economy, and green growth
title_fullStr Relationships between green technological innovation, renewable energy, circular economy, and green growth
title_full_unstemmed Relationships between green technological innovation, renewable energy, circular economy, and green growth
title_short Relationships between green technological innovation, renewable energy, circular economy, and green growth
title_sort relationships between green technological innovation renewable energy circular economy and green growth
topic G01
G21
M14
Q50
url http://www.sciencedirect.com/science/article/pii/S2444569X25000939
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