TY - JOUR T1 - The Impact of Economic Policy Uncertainty and Foreign Direct Investments on Renewable Energy Consumption in G-7 Countries TT - G-7 Ülkelerinde Ekonomi Politika Belirsizliği ve Doğrudan Yabancı Yatırımlarının Yenilenebilir Enerji Tüketimi Üzerindeki Etkisi AU - Ayyıldız, Fatih Volkan PY - 2025 DA - October Y2 - 2025 DO - 10.25204/iktisad.1739234 JF - İktisadi İdari ve Siyasal Araştırmalar Dergisi JO - JEBUPOR PB - H. Mustafa PAKSOY WT - DergiPark SN - 2564-7466 SP - 866 EP - 880 VL - 10 IS - 28 LA - en AB - This study investigates the impact of economic policy uncertainty and foreign direct investments on renewable energy consumption in G-7 (The Group of Seven) countries using data for the period 2000-2023. At the same time, another important purpose of the study is to investigate the multidirectional relationships of causality between the variables. Within the context of the goal, the relationships between variables are analyzed using Gengenbach, Urbain, and Westerlund, Prais-Winsten and Dumitrescu-Hurlin methods. This study fills the gap in the literature by differing from other studies on the subject in terms of the methods used. According to the findings of Gengenbach, Urbain and Westerlund’s cointegration test, it was found that there was a cointegration relationship between the variables. According to the findings of the Prais-Winsten regression analysis, a 1% increase in foreign direct investment increases renewable energy consumption by approximately 0.30%, at a statistically significant level. According to the findings of Dumitrescu and Hurlin panel causality analysis suggested for heterogeneous panel data, there is a bidirectional causality relationship between all variables. All the findings obtained from the analysis generally support the findings of similar studies in literature. KW - Renewable energy KW - economic policy uncertanity KW - foreign direct investment KW - Prais-Winsten regression KW - Dumitrescu-Hurlin panel causality N2 - Bu çalışmada, 2000-2023 dönemi verileri kullanılarak G-7 (Yedili Grup) ülkelerinde ekonomi politika belirsizliği ve doğrudan yabancı yatırımlarının, yenilenebilir enerji tüketimi üzerindeki etkisi araştırılmaktadır. Aynı zamanda değişkenler arasındaki çok yönlü nedensellik ilişkilerinin araştırılması çalışmanın bir diğer önemli amacıdır. Bu amaç kapsamında, değişkenler arasındaki ilişkiler Gengenbach, Urbain ve Westerlund, Prais-Winsten ve Dumitrescu-Hurlin yöntemleri kullanılarak analiz edilmiştir. Bu çalışma, kullanılan yöntemler açısından konuyla ilgili diğer çalışmalardan farklılaşarak literatürdeki boşluğu doldurmaktadır. Gengenbach, Urbain ve Westerlund eşbütünleşme testi sonucunda değişkenler arasında eşbütünleşme ilişkisi olduğu bulunmuştur. Prais-Winsten regresyon analizinin bulgularına göre, doğrudan yabancı yatırımlardaki %1'lik bir artış, yenilenebilir enerji tüketimini istatistiksel olarak anlamlı bir düzeyde yaklaşık %0,30 oranında artırmaktadır. Heterojen yapıdaki panel veriler için önerilen Dumitrescu ve Hurlin panel nedensellik analizi bulgularına göre tüm değişkenler arasında çift yönlü nedensellik ilişkisi bulunmaktadır. Analizlerden elde edilen bulgular genel olarak literatürdeki benzer çalışmaların bulgularını desteklemektedir. CR - Abbasi, M. A., Nosheen, M., and Rahman, H. U. (2023). An approach to the pollution haven and pollution halo hypotheses in Asia countries. Environmental Science and Pollution Research, 30(17), 49270-49289. https://doi.org/10.1007/s11356-023-25548-x CR - Acharyya, J. (2009). FDI, growth and the environment: Evidence from India on CO2 emission during the last two decades. Journal of Economic Development, 34(1), 43-58. https://jed.cau.ac.kr/archives/34-1/34-1-3.pdf CR - Adedoyin, F. 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