Leveraging the role of biofuel and green technology innovation towards sustainable transportation in emerging economies: does the incorporation of environmental policy matter?
摘要
Although the transportation sector is a crucial component of economic growth, it also substantially contributes to environmental degradation. Thus, in alignment with the United Nations Sustainable Development Goals (SDGs), the decarbonization of the transportation sector is pivotal for achieving SDG 11. Therefore, this study explores the underlying role of biofuel consumption (BC), green technology innovation (GTI), and environmental policy stringency (EPS) in abating transport sector emissions for eleven emerging economies spanning from 2005 to 2022. This study examines the individual and moderation effects using the cross-sectional augmented autoregressive distributed lag (CS-ARDL) and augmented mean group (AMG) estimators while addressing the heterogeneity and unobserved endogeneity issues. The empirical findings posit that while biofuel has a positive impact, EPS has a modest but negative impact on transportation emissions. Conversely, GTI significantly abates transportation emissions in emerging countries. Besides, the moderation effect of EPS with BC and GTI significantly abates transportation emissions in the long run. Thus, this study suggests implementing coherent policies that include tax benefits, biofuel mandates to produce advanced biofuel products, and coordinated efforts to strengthen institutional and regulatory frameworks to decarbonize the transportation sector and achieve sustainable goals.