Does Age-Disaggregated Unemployment Matter in the Environmental Phillips Curve Hypothesis?

Year 2025, Volume: 75 Issue: 2, 394 - 412, 15.01.2026

Süleyman Uğurlu

https://doi.org/10.26650/ISTJECON2024-1700941

https://izlik.org/JA26DC69LG

Abstract

Previous studies examining the Environmental Phillips Curve (EPC) hypothesis could not discover the impact of unemployment rates in different age groups on the environment. Assuming that aggregation bias may play a role, this study focuses on unemployment rates. This study undertakes a comprehensive examination of the effects of unemployment rates across various age ranges, encompassing ten years and the aggregate unemployment rate. The analysis incorporates six distinct models to enhance the robustness of the findings. While the EPC hypothesis remains unconfirmed in the 55-64 age group, it is substantiated in all other models. The most pronounced effect was observed in the 25-34 age group. This f inding contributes to a more nuanced understanding of the role of age groups in environmental and unemployment issues.

Keywords

Environmental Phillips Curve , Age-Disaggregated , Unemployment , Germany

References

• Abbas, M., & Yang, L. (2024). Measuring the long-run effect of economic growth, population ageing, and unemployment on carbon emissions in South Asia. Pakistan Journal of Commerce and Social Sciences (PJCSS), 18(1), 113–133. google scholar
• Addison, R., Akutcha, E., & Debrah, G. (2024). Does the environmental Phillips curve hypothesis hold within the Ghanaian context?. Scientific African, 26, e02400. https://doi.org/10.1016/j.sciaf.2024.e02400 google scholar
• Ahmad, M., & Khan, R. E. A. (2018). Age-structure, human capital and economic growth in developing economies: a disaggregated analysis. Pakistan Journal of Commerce and Social Sciences (PJCSS), 12(1), 229–252. https://hdl.handle.net/10419/188344 google scholar
• Altıntaş, H., & Kassouri, Y. (2020). Is the environmental Kuznets curve in Europe related to the per-capita ecological footprint or CO2 emissions?. Ecological Indicators, 113, 106187. https://doi.org/10.1016/j.ecolind.2020.106187 google scholar
• Alves, W. L., & Ferreira, R. T. (2023). Phillips curve and the exchange rate pass-through: a time–frequency approach. Empirical Economics, 64(5), 2165–2181. doi:10.1007/s00181-022-02317-2 google scholar
• Ansari, M. A. (2022). Re-visiting the Environmental Kuznets curve for ASEAN: A comparison between ecological footprint and carbon dioxide emissions. Renewable and Sustainable Energy Reviews, 168, 112867. doi:10.1016/j.rser.2022.112867 google scholar
• Anser, M. K., Apergis, N., Syed, Q. R., & Alola, A. A. (2021). Exploring a new perspective of sustainable development drive through environmental Phillips curve in the case of the BRICST countries. Environmental Science and Pollution Research, 28(35), 48112– 48122. doi:10.1007/s11356-021-14056-5google scholar
• Anwar, A., Sinha, A., Sharif, A., Siddique, M., Irshad, S., Anwar, W. and Malik, S. (2022). The nexus between urbanization, renewable energy consumption, financial development, and CO2 emissions: evidence from selected Asian countries. Environ. Dev. Sustain. 24, 1–21. https://doi.org/10.1007/s10668-021-01716-2 google scholar
• Ardakani, M. K., & Seyedaliakbar, S. M. (2019). Impact of energy consumption and economic growth on CO2 emission using multivariate regression. Energy Strategy Reviews, 26, 100428. doi:10.1016/j.esr.2019.100428 google scholar
• Aussilloux, V., Frocrain, P., Lallement, R., Tabarly, G. and Harfi, M. (2020). Industrial policies in France developments and international comparisons. Note de Synthèse, 1–12. https://www.strategie.gouv.fr/files/files/Publications/English%20Articles/Industrial%20policies%20in%20France/note_de_synthese_-pol_indu-25.01-_en.pdfgoogle scholar
• Ayad, H., & Djedaiet, A. (2024). Does the unemployment rate matter for environmental issues in the G7 nations? New testing for the environmental Phillips curve using the load capacity factor. Environment, Development and Sustainability, 1–31. https://doi.org/ 10.1007/s10668-024-04956-0 google scholar
• Azimi, M. N., & Rahman, M. M. (2024). Examining the environmental Phillips curve hypothesis in G7 nations: critical insights from wavelet coherence and wavelet causality analysis. Quality & Quantity, 58, 5683–5713. https://doi.org/10.1007/s11135-024-01909-7 google scholar
• Backhouse, R. E., Forder, J., & Laskaridis, C. (2023). The natural rate of unemployment and the NAIRU. European Economic Review, 159(Oc-tober), 104563. doi:10.1016/j.euroecorev.2023.104563 google scholar
• Beveridge, R. and Kern, K. (2013). The Energiewende in Germany: background, developments and future challenges. Renewable Energy L. & Pol'y Rev., 4, 3. [suspicious link removed] google scholar
• Bhowmik, R., Syed, Q. R., Apergis, N., Alola, A. A., & Gai, Z. (2022). Applying a dynamic ARDL approach to the environmental Phillips curve (EPC) hypothesis amid monetary, fiscal, and trade policy uncertainty in the USA. Environ Sci Pollut Res 29(10):14914–14928. https:// doi.org/10.1007/s11356-021-16716-y google scholar
• Blanchflower, D., Bryson, A., & Spurling, J. (2024). The wage curve after the Great Recession. Economica, 91(362), 653–668. doi: 10.1111/ ecca.12515 google scholar
• Bloom, D. E., Canning, D. and Fink, G. (2010). Implications of population ageing for economic growth. Oxford Review of Economic Policy, 26(4), 583-612. https://doi:10.1093/oxrep/grq038 google scholar
• Broman, G. I., & Robèrt, K. H. (2025). Operative system for strategic sustainable development–coordinating analysis, planning, action, and use of supports such as the sustainable development goals, planetary boundaries, circular economy, and science‐based targets. Sustainable Development. https://doi.org/10.1002/sd.3357 google scholar
• Brouillette, D., Dockrill, M., Lao, H. and Savoie-Chabot, L. (2018). Bending the Curves: Wages and Inflation (No. 2018-15). Bank of Canada. https://www.bankofcanada.ca/wp-content/uploads/2018/05/san2018-15.pdfgoogle scholar
• Button, K. (2022). A. J. Brown and the US Phillips Curve: A Comment. History of Economics Review, 81(1), 52-62. doi:10.1080/10370196.2021.1950385 google scholar
• Caglar, A. E., Daştan, M., & Rej, S. (2023a). A new look at China’s environmental quality: How does environmental sustainability respond to the asymmetrical behavior of the competitive industrial sector? International Journal of Sustainable Development & World Ecology. doi:10.1080/13504509.2023.2248584 google scholar
• Caglar, A. E., Daştan, M., Mehmood, U., & Avci, S. B. (2023b). Assessing the connection between competitive industrial performance on load capacity factor within the LCC framework: Implications for sustainable policy in BRICS economies. Environmental Science and Pollution Research. doi:10.1007/s11356-023-29178-1 google scholar
• Cartwright, E. D. (2024). Stark warning earth rapidly closing in on Paris agreement emission thresholds. Climate and Energy, 41(1), 10–15. doi:10.1002/gas.22414 google scholar
• Chen, J., Wang, P., Cui, L., Huang, S. and Song, M. (2018). Decomposition and decoupling analysis of CO₂ emissions in OECD. Applied Energy, 231, 937–950. https://doi.org/10.1016/j.apenergy.2018.09.179 google scholar
• Chung, C., & Kim, J. (2024). Greenflation, a myth or fact? Empirical evidence from 26 OECD countries. Energy Economics, 139, 107906. doi:10.1016/j.eneco.2024.107906 google scholar
• Çakmak, T. K., Beşer, M. K., & Alola, A. A. (2024). Explaining employment and environmental degradation nexus with environmental employment curve (EEC): a sector-wide threshold estimation for China. Journal of Cleaner Production, 436, 140264. doi:10.1016/ j.jclepro.2023.140264 google scholar
• Daştan, M., & Eygü, H. (2024). An empirical investigation of the link between economic growth, unemployment, and ecological footprint in Turkey: bridging the EKC and EPC hypotheses. Environment, Development and Sustainability, 26(7), 18957–18988. https://doi. org/10.1007/s10668-023-04106-y google scholar
• Demir, H. U., & Karamelikli, H. (2023). Does energy usage reduction hinder economic performance?. Energy Efficiency, 16(6), 60. https:// doi.org/10.1007/s12053-023-10131-7 google scholar
• Destek, M. A., & Sinha, A. (2020). Renewable, non-renewable energy consumption, economic growth, trade openness and ecological footprint: evidence from organisation for economic co-operation and development countries. Journal of cleaner production, 242, 118537. doi:10.1016/j.jclepro.2019.118537 google scholar
• Djedaiet, A. (2023). Does environmental quality react asymmetrically to unemployment and inflation rates? African OPEC countries’ perspective. Environmental Science and Pollution Research, 30, 1–10. doi:10.1007/s11356-023-29621-3 google scholar
• Do, H. P., & Spanos, A. (2024). Revisiting the Phillips curve: the empirical relationship yet to be validated. Oxford Bulletin of Economics and Statistics. 761–793. https://doi:10.1111/obes.12605 google scholar
• Droege, P. (2025). Beyond Paris: Emergency imperatives for global policy and local action: climate stabilization by an intact biosphere. Sustainable Earth Reviews, 8(2), 1–19. https://doi.org/10.1186/s42055-024-00100-y google scholar
• Durani, F., Bhowmik, R., Sharif, A., Anwar, A., & Syed, Q. R. (2023). Role of economic uncertainty, financial development, natural resources, technology, and renewable energy in the environmental Phillips curve framework. Journal of Cleaner Production, 420, 138334. doi:10.1016/j. julep ro. 2023.138334 google scholar
• Dustmann, C., Fitzenberger, B., Schönberg, U. and Spitz-Oener, A. (2014). From sick man of Europe to economic superstar: Germany's resurgent economy. Journal of Economic Perspectives, 28(1), 167–188. https://doi.org/10.1257/jep.28.1.167 google scholar
• Enders, W. and Lee, J. (2012). A unit root test using a Fourier series to approximate smooth breaks. Oxford Bulletin of Economics and Statistics, 74(4), 574–599. doi: 10.1111/j.1468- 0084. 2011.00662.x google scholar
• Farhani, S., Shahbaz, M., Sbia, R. and Chaibi, A. (2014). What does MENA region initially need: grow output or mitigate CO2 emissions?. Economic Modelling, 38, 270–281. doi:10.1016/j.econmod.2014.01.001 google scholar
• Filonchyk, M., Peterson, M. P., Yan, H., Gusev, A., Zhang, L., He, Y., & Yang, S. (2024). Greenhouse gas emissions and reduction strategies for the world's largest greenhouse gas emitters. Science of the Total Environment, 173895. https://doi.org/10.1016/j.scitotenv. 2024.173895 google scholar
• Gillitzer, C. (2016). The sticky information Phillips curve: Evidence for Australia. Economic Record, 92(299), 548–567. doi: 10.1111/1475-4932.12279google scholar
• Gupta, S. D., Baudino, M., & Sarkar, S. (2025). Does the environmental Kuznets curve hold across sectors? evidence from developing and emerging economies. Renewable and Sustainable Energy Reviews, 211, 115201. doi:10.1016/j.rser.2024.115201 google scholar
• Hacıimamoğlu, T. (2023a). A new approach to sustainable development: analysis of the environmental Phillips curve hypothesis. Sosy-oekonomi, 31(56), 11–25. https://doi.org/10.17233/sosyoekonomi.2023.02.01 google scholar
• Hacıimamoğlu, T. (2023b). MIKTA ülkelerinde çevresel Phillips eğrisi hipotezinin test edilmesi: CS-ARDL testi yaklaşımı. Ordu Üniversitesi Sosyal Bilimler Enstitüsü Sosyal Bilimler Araştırmaları Dergisi, 13(1), 301–316. https://doi.org/10.48146/odusobiad.1104588 google scholar
• Hancké, B. and Coulter, S. (2013). The German manufacturing sector unpacked: institutions, policies and future trajectories. Future of Manufacturing Project: Evidence Paper 13, Government Office for Science. https://assets.publishing.service.gov.uk/media/5a7ba60e40f0b638d61be08e/ep13-german-manufacturing.pdf google scholar
• Haschka, R. E. (2024). Examining the new Keynesian Phillips curve in the US: why has the relationship between inflation and unemployment weakened?. Research in Economics, 100987. doi:10.1016/j.rie.2024.100987google scholar
• Huang, S. W., Chung, Y. F., Wu, T. H. (2021). Analyzing the relationship between energy security performance and decoupling of economic growth from CO₂ emissions for OECD countries. Renewable and Sustainable Energy Reviews, 152 (December), 111633, doi:10.1016/ j.rser.2021.111633 google scholar
• Javid, M. and Sharif, F. (2016). Environmental Kuznets curve and financial development in Pakistan. Renewable and Sustainable Energy Reviews, 54, 406–414. doi:10.1016/j.rser.2015.10.019 google scholar
• Junhua, L. (2024). The Sustainable Development Goals Report, https://unstats.un.org/sdgs/report/2024/The-Sustainable-Development-Goals-Report-2024.pdf(10.12.2024. google scholar
• Karakaya, E., Bostan, A., Özçağ, M., (2019). Decomposition and decoupling analysis of energy-related carbon emissions in Turkey. Environ Sci Pollut Control Ser. 26, 32080–32091. doi:10.1007/s11356-019-06359-5 google scholar
• Karimi, M.S., Karamelikli, H., & Naysary, B. (2024). The role of tourism in driving economic growth: an asymmetric augmented autoregressive distributed lag analysis of Singapore’s experience. International Journal of Tourism Research, 26(4), 1–16. doi:10.1002/ jtr.2696. google scholar
• Kashem, M. A., & Rahman, M. M. (2020). Environmental Phillips curve: OECD and Asian NICs perspective. Environmental Science and Pollution Research, 27, 31153–31170. https://doi.org/10.1007/s11356-020-08620-8 google scholar
• Kharb, R., Shri, C., Saini, N., & Kumar, D. (2024). Strategies for environmental sustainability: analyzing the green and digital transitions. Sustainability Accounting, Management and Policy Journal. doi: 10.1108/SAMPJ-04-2024-0328 google scholar
• Kinnunen, J., Georgescu, I., & Nica, I. (2024). Evaluating the environmental Phillips curve hypothesis in the STIRPAT framework for Finland. Sustainability, 16(11), 4381. google scholar
• Konya, S. (2024). Çevresel Phillips eğrisi hipotezinin cinsiyet bakış açısıyla test edilmesi: MINT ülkelerinden ampirik kanıtlar. JOEEP: Journal of Emerging Economies and Policy, 9(1), 273–284. google scholar
• Koyuncu Cakmak, T., Beşer, M. K., & Alola, A. A. (2023). Environmental effect of high-, upper- and lower-middle-income economies’ energy mix: is there a trade-off between unemployment and environmental quality? Energy and Environment. https://doi.org/10.1177/ 09583 05X231187034google scholar
• Kurozumi, T., Oishi, R., & Van Zandweghe, W. (2022). Sticky information versus sticky prices revisited: a Bayesian VAR-GMM approach. Federal Reserve Bank of Cleveland Working Paper Series, Working Paper No. 22–34. http://dx.doi.org/10.2139/ssrn.4278716 google scholar
• Leitao, J., Ferreira, J., Santibanez-Gonzalez, E. (2022). New insights into decoupling economic growth, technological progress and carbon dioxide emissions: evidence from 40 countries. Technological Forecasting and Social Change, 174 (January), 121250. doi:10.1016/ j.techfore.2021.121250google scholar
• Liddle, B., & Lung, S. (2010). Age-structure, urbanization, and climate change in developed countries: revisiting STIRPAT for disaggregated population and consumption-related environmental impacts. Population and Environment, 31, 317–343. doi: 10.1007/ s11111-010-0101-5 google scholar
• Lipsey, R. G. (1960). The relation between unemployment and the rate of change of money wage rates in the United Kingdom, 1862-1957: a further analysis. Economica, 1–31. [suspicious link removed] google scholar
• Malik, I. H., & Ford, J. D. (2024). Addressing the climate change adaptation gap: key themes and future directions. Climate, 12(2), 24. doi:10.3390/cli12020024 google scholar
• Malik, Z., & Shaikh, O. (2023). The EPC hypothesis revisited in G-20 Countries: a novel panel data analysis. International Journal of Creative Research Thoughts, 11(3), 304–317. google scholar
• McNown, R., Sam, C. Y. and Goh, S. K. (2017). Bootstrapping the autoregressive distributed lag test for cointegration. Applied Economics, 50 (13), 1509–1521. https://doi.org/10.1080/00036846.2017.1366643 google scholar
• Mishkin, F. (2014). Macroeconomics: Policy and Practice, 2nd edition, Pearson, ISBN10: 0133424316, google scholar
• Mohammed, S., Gill, A. R., Ghosal, K., Al-Dalahmeh, M., Alsafadi, K., Szabó, S., & Harsanyi, E. (2024). Assessment of the environmental kuznets curve within EU-27: Steps toward environmental sustainability (1990–2019). Environ Sci Ecotechnol, 18, 100312. https://doi. org/10.1016/j.ese.2023.100312google scholar
• Morris, C. and Jungjohann, A. (2016). Energy democracy. Germanys Energiewende to. ISBN 978-3-319-31891-2. Palgrave Macmillan, https://10.1007/978-3-319-31891-2 google scholar
• Moutinho, V., Varum, C. and Madaleno, M. (2017). How economic growth affects emissions? An investigation of the environmental Kuznets curve in Portuguese and Spanish economic activity sectors. Energy Policy, 106, 326–344. DOI: 10.1016/j.enpol.2017.03.069 google scholar
• Murshed, M., Apergis, N., Alam, M. S., Khan, U., & Mahmud, S. (2022). The impacts of renewable energy, financial inclusivity, globalization, economic growth, and urbanization on carbon productivity: Evidence from net moderation and mediation effects of energy efficiency gains. Renewable Energy, 196, 824–838. https://doi.org/10.1016/j.renene.2022.07.012 google scholar
• Narayan, P. K. (2005). The saving and investment nexus for China: evidence from cointegration tests. Applied Economics, 37(17), 1979-1990. google scholar
• Nazir, M. I., Nazir, M. R., Hashmi, S. H. and Ali, Z. (2018). Environmental Kuznets curve hypothesis for Pakistan: empirical evidence form ARDL bound testing and causality approach. International Journal of Green Energy, 15(14-15), 947–957. doi:10.1080/15435075.2018.1529590 google scholar
• Ng, C. F., Yii, K. J., Lau, L. S., & Go, Y. H. (2022). Unemployment rate, clean energy, and ecological footprint in OECD countries. Environmental Science and Pollution Research, 30(15), 42863–42872. DOI: 10.1007/s11356-021-17966-6 google scholar
• Özokcu, S., & Özdemir, Ö. (2017). Economic growth, energy, and environmental Kuznets curve. Renewable and Sustainable Energy Reviews, 72, 639–647. doi:10.1016/j.rser.2017.01.059 google scholar
• Pata, U. K., & Balsalobre-Lorente, D. (2022). Exploring the impact of tourism and energy consumption on the load capacity factor in Turkey: A novel dynamic ARDL approach. Environmental Science and Pollution Research, 29(9), 13491–13503. DOI: 10.1007/ s11356-021-16675-4 google scholar
• Pesaran, M. H., Shin, Y., & Smith, R. J. (2001). Bounds testing approaches to the analysis of level relationships. Journal of Applied Econometrics, 16(3), 289–326. doi:10.1002/jae.616 google scholar
• Phillips, A. W. (1958). The relation between unemployment and the rate of change of money wage rates in the United Kingdom, 1861-1957. Economica, 25(100), 283–299. google scholar
• Plumpe, W. (2016). Germany as an industrial country 1945–2008. German Economic and Business History in the 19th and 20th Centuries (pp. 239–280). Palgrave Macmillan. google scholar
• Rayhan, I., Al Nahian, M. A., & Siddika, A. (2020). Re-evaluating the environmental Kuznets curve and environmental Phillips curve in Bangladesh: an augmented ARDL bounds test approach with a structural break. The Jahangirnagar Economic Review, 31, 109–134. google scholar
• Rudd, J. B. (2022). Why do we think that inflation expectations matter for inflation? (And should we?). Review of Keynesian Economics, 10(1), 25–45. https://doi.org/10.4337/roke.2022.01.02 google scholar
• Sahin, G., Naimoglu, M., Kavaz, I., & Sahin, A. (2025). Examining the environmental Phillips curve hypothesis in the ten most polluting emerging economies: economic dynamics and sustainability. Sustainability, 17(3), 920. doi:10.3390/su17030920 google scholar
• Salvati, L., & Tridico, P. (2024). Which policies against inflation after covid-19 and the war in Ukraine: the Italian Case. Review of Political Economy, 36(4), 1420–1435. doi:10.1080/09538259.2023.2294296 google scholar
• Sam, C. Y., McNown, R., & Goh, S. K. (2019). An augmented autoregressive distributed lag bounds test for cointegration. Economic Modelling, 80 (November 2018), 130–141. doi:10.1016/j.econmod.2018.11.001 google scholar
• Samuelson, P. A., & R. Solow. (1960). Analytical aspects of anti-inflation policy. American Economic Review, 50, 177–204. https://www. jstor.org/stable/1815021 google scholar
• Scholz, R., Beckmann, M., Pieper, C., Muster, M. and Weber, R. (2014). Considerations on providing the energy needs using exclusively renewable sources: Energiewende in Germany. Renewable and Sustainable Energy Reviews, 35, 109–125. https://doi.org/10.1016/j. rser.2014.03.053 google scholar
• Schreurs, M. A. (2016). Is Germany really an environmental leader?. Current History, 115(779), 114–116. [suspicious link removed]. 2307/48614151google scholar
• Shahbaz, M., Hye, Q. M. A., Tiwari, A. K. ve Leitão, N. C. (2013a). Economic growth, energy consumption, financial development, international trade and CO2 emissions in Indonesia. Renewable and Sustainable Energy Reviews, 25, 109–121. google scholar
• Shahbaz, M., Ozturk, I., Afza, T., & Ali, A. (2013b). Revisiting the environmental Kuznets curve in a global economy. Renewable and Sustainable Energy Reviews, 25, 494–502. doi:10.1016/j.rser.2013.05.021google scholar
• Shang, L., & Xu, P. (2022). Can carbon emission regulation achieve a dual target of low carbon and employment? An empirical analysis based on China’s provincial panel data. Frontiers in Energy Research, 10, 926443. doi:10.3389/fenrg.2022.926443 google scholar
• Sharma, G. D., Tiwari, A. K., Erkut, B., & Mundi, H. S. (2021). Exploring the nexus between non-renewable and renewable energy consumptions and economic development: evidence from panel estimations. Renewable and Sustainable Energy Reviews, 146, 111152. doi:10.1016/j.rser.2021.111152google scholar
• Shastri, S., Mhohaptra, G., & Giri, A. K., (2023). The environmental Philips curve from a gender perspective: empirical evidence from India. Environmental Science and Pollution Research, 30, 17487–17496. doi:10.1007/s11356-022-23336-7 google scholar
• Shi, C. (2020). Decoupling analysis and peak prediction of carbon emission based on decoupling theory. Sustainable Computing: Informatics and Systems 28, 100424. doi:10.1016/j.suscom.2020.100424 google scholar
• Stern, D. I. (2011). The role of energy in economic growth. Annals of the New York Academy of Sciences, 1219(1), 26–51. doi: 10.1111/ j.1749-6632.2010.05921.x google scholar
• Tanveer, A., Song, H., Faheem, M. and Chaudhry, I. S. (2022). Validation of environmental Philips curve in Pakistan: a fresh insight through ARDL technique. Environ Sci Pollut Res, 1–18. https://doi.org/10.1007/s11356-021-17099-w google scholar
• Tariq, S., Mehmood, U., Ul Haq, Z., & Mariam, A. (2022). Exploring the existence of environmental Phillips curve in South Asian countries. Environ Sci Pollut Res, 29(23), 35396–35407. https://doi.org/10.1007/s11356-021-18099-6 google scholar
• Ullah, A., Tekbaş, M., & Doğan, M. (2023). The impact of economic growth, natural resources, urbanization and biocapacity on the ecological footprint: the case of Turkey. Sustainability, 15(17), 12855. doi:10.3390/su151712855 google scholar
• UN, (2025). United Nations, https://sdgs.un.org/goals (10.12.2024). google scholar
• Von Hirschhausen, C. (2014). The German “Energiewende” an introduction. Economics of Energy & Environmental Policy, 3(2), 1–12. [suspicious link removed] google scholar
• Wang, Y., & He, X. (2019). Spatial economic dependency in the environmental Kuznets curve of carbon dioxide: the case of China. J Clean Prod, 218, 498–510. https://doi.org/10.1016/j.jclepro.2019.01.318 google scholar
• Wu, R., Xie, Z., Wang, J., & Wang, S. (2025). Estimating the environmental Kuznets curve and its influencing factors of CO2 emissions: insights from development stages and rebound effects. Appl Geogr, 174, 103475. https://doi.org/10.1016/j.apgeog.2024.103475 google scholar
• Yavuz, E., Kilic, E., & Caglar, A. E. (2024). A new hypothesis for the unemployment-environment dilemma: is the environmental Phillips curve valid in the framework of load capacity factor in Turkiye?. Environment, Development and Sustainability, 1–18. https://doi. org/10.1007/s10668-023-04258-x google scholar
• Zeraibi, A., Jahangir, A., Ramzan, M., & Adetayo, T. S. (2023). Investigating the effects of natural gas, nuclear energy, and democracy on environmental footprint and energy risk in France: does financial inclusion matter?. Progress in Nuclear Energy, 159, 104621. https://doi.org/10.1016/j.pnucene.2023.104621 google scholar
• Zhang, H., Mareeh, H., Belhaj, F. A., Hazaea, S. A., Liu, N., Raid, M. and Hael, M. (2025). Trends in research on the carbon footprint of economic growth: a bibliometric analysis. Journal of the Knowledge Economy, 1–46. doi:10.1007/s13132-024-02556-x google scholar
• Zweig, D. (2020). Market power, NAIRU, and the Phillips curve. Abstract and Applied Analysis, 2020(1), p. 7083981. Hindawi. https://doi. org/10.1155/2020/7083981 google scholar