@article{article_1777944, title={Convergence of Environmental Technologies: The Case of OECD}, journal={JOEEP: Journal of Emerging Economies and Policy}, volume={10}, pages={1–12}, year={2025}, author={Olgun, Mehmet Fırat}, keywords={çevre ekonomisi, iklim değişikliği, patent, çevre teknolojileri, stokastik yakınsama}, abstract={This study examines the convergence of environmental technologies. Analysis was conducted using Fractional Fourier Unit Root Tests using data from 1992 to 2022. Stochastic convergence was used, and 31 OECD countries were included in the analysis. The findings indicate that patents related to environmental technologies converge to the OECD average in 23 countries. Convergence is not observed in 8 countries. Given that convergence exists in approximately 75% of countries, it can be said that pursuing a common policy could yield positive results. However, considering the 8 countries where convergence is not present, it would be beneficial for these countries to develop additional, country-specific policies alongside common strategies}, number={2}, publisher={Seyfettin ERDOĞAN}