Bridging innovation and Adoption: The asymmetric impact of E-mobility technology budgets on electric vehicle growth

IF 6.3 2区工程技术 Q1 ECONOMICS

Transport Policy Pub Date : 2025-07-09 DOI:10.1016/j.tranpol.2025.07.011

Canghong Wang , Yuwen Ning , Tomiwa Sunday Adebayo , Sajid Ali

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引用次数: 0

Abstract

E-mobility technology budgets are pivotal in advancing electric vehicle adoption by supporting innovation and infrastructure. Higher investments in this sector drive and expedite the global transition to sustainable transportation solutions. The present investigation examines the asymmetric impact of e-mobility technology budgets on electric vehicle stock in ten selected economies having the highest e-mobility R&D expenditures, including China, the United States, France, Japan, Germany, the UK, South Korea, Sweden, the Netherlands, and Norway. Unlike prior investigations that predominantly applied panel data methods and frequently ignored the distinct economic contexts of specific economies, this investigation adopts the refined Quantile-on-Quantile instrument. This methodology allows for examining variables’ changes within every economy individually, augmenting accuracy and providing a more insightful understanding of distinct traits of each economy. The results disclose a significant positive relationship between e-mobility technology budgets and electric vehicle stock in most analyzed countries, demonstrating particular patterns and dynamics. However, the relationship is more complex in Sweden and Norway, showing mixed results. These results draw attention to the significant requirement for policymakers to conduct in-depth evaluations and formulate tailored strategies to address the complicated relationship between e-mobility technology budgets and electric vehicle adoption, aligning with sustainable development goals.

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弥合创新和采用：电动交通技术预算对电动汽车增长的不对称影响

通过支持创新和基础设施建设，电动交通技术预算对于推动电动汽车的普及至关重要。加大对该领域的投资，推动并加速了全球向可持续交通解决方案的过渡。本研究考察了在中国、美国、法国、日本、德国、英国、韩国、瑞典、荷兰和挪威等10个电动汽车研发支出最高的经济体中，电动汽车技术预算对电动汽车库存的不对称影响。与之前的调查主要采用面板数据方法，经常忽略特定经济体的独特经济背景不同，本次调查采用了改进的分位数对分位数工具。这种方法允许单独检查每个经济体中变量的变化，提高准确性，并对每个经济体的独特特征提供更深刻的理解。结果显示，在大多数分析的国家中，电动汽车技术预算与电动汽车库存之间存在显著的正相关关系，显示出特定的模式和动态。然而，在瑞典和挪威，这种关系更为复杂，结果好坏参半。这些结果提醒人们注意，决策者需要进行深入评估，并制定有针对性的战略，以解决电动交通技术预算与电动汽车采用之间的复杂关系，与可持续发展目标保持一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transport Policy Multiple-

CiteScore

12.10

自引率

10.30%

发文量

282

期刊介绍： Transport Policy is an international journal aimed at bridging the gap between theory and practice in transport. Its subject areas reflect the concerns of policymakers in government, industry, voluntary organisations and the public at large, providing independent, original and rigorous analysis to understand how policy decisions have been taken, monitor their effects, and suggest how they may be improved. The journal treats the transport sector comprehensively, and in the context of other sectors including energy, housing, industry and planning. All modes are covered: land, sea and air; road and rail; public and private; motorised and non-motorised; passenger and freight.