Abstract
The purpose of this study is to validate the impact of foreign direct investment inflows (FDI inflows), trade openness (TO), environmentally related technologies (ERTs), environmentally related tax revenues (ERTRs), and economic growth (EG) on carbon dioxide (CO2) emissions by employing a PMG (pooled mean group) estimator with a dataset of 36 OECD countries spanning from 1990 to 2020. Im-Pesaran-Shin, Fisher-type, and cross-sectional augmented Dicky-Fuller tests indicate that study variables are stationary at I (0) and I (I). Kao and Pedroni cointegration test results show that cointegration exists across regressors and regressands throughout the sample of OECD countries. The results of the Hausman test confirm that the PMG panel ARDL method can be employed. Empirical results of PMG demonstrate that ERTRs help to reduce CO2 emissions, while FDI inflows, TO, ERTs, and EG are significant and positively related to environmental degradation. This study is an effort to fill the gap by exploring the role of ERTs and ERTRs in environmental degradation in selected OECD countries. The study findings support the relationship between CO2 emissions, ERTs, and ERTRs. It has been determined that environmental technologies and revenue taxes are also drivers of environmental sustainability. The study provides policymakers with pertinent implications for promoting the development and adoption of green technologies. The findings suggest that imposing environmental taxes expedites the development of environmentally related technologies for reducing CO2 emissions and promoting sustainable development in OECD countries, with potential applications in a wide range of countries, particularly as a basis for emerging countries to boost their energy transition timelines.
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