Research on the contribution of technological innovation efficiency and internal structure optimization of charging pile industry: A case study of China

IF 7.9 2区经济学 Q1 ECONOMICS

Economic Analysis and Policy Pub Date : 2024-10-30 DOI:10.1016/j.eap.2024.10.038

Shanwei Li, Jingjie Li

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引用次数: 0

Abstract

In the context of resource scarcity and environmental protection, the new energy industry has garnered significant attention from various sectors. The charging pile (CP) industry, a crucial component of the new energy vehicle (NEV) industry's supply chain, requires improvements in both quantity and quality. This study examined the technological innovation efficiency (TIE) of the CP industry, considering two levels: pure technical efficiency (PTE) and scale efficiency (SE), and explored methods to optimize its internal structure. By combining the grey correlation analysis (GCA) method with the generalized data envelopment analysis (GDEA) model, a reliable evaluation indicator system was established. Empirical findings revealed that the PTE of technological innovation in the CP industry exhibited an upward trend from 2019 to 2022, achieving a GDEA-effective state. However, the SE of technological innovation shows a downward trend, indicating non-GDEA effectiveness. The contribution of CP companies to the PTE of technological innovation has shown a persistent and accelerating decline, while their contribution to SE, once negative, gradually shifts toward a positive influence. Consequently, the internal technological innovation structure of the CP industry necessitates optimization and adjustment to attain balance. This study provides recommendations from the perspectives of both the government and companies.

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充电桩行业技术创新效率与内部结构优化贡献研究：中国案例研究

在资源稀缺和环境保护的大背景下，新能源产业备受各界关注。充电桩（CP）产业作为新能源汽车（NEV）产业供应链的重要组成部分，需要在数量和质量上都有所提升。本研究从纯技术效率（PTE）和规模效率（SE）两个层面考察了充电桩产业的技术创新效率（TIE），并探索了优化其内部结构的方法。通过将灰色关联分析（GCA）方法与广义数据包络分析（GDEA）模型相结合，建立了可靠的评价指标体系。实证研究结果表明，从 2019 年到 2022 年，氯化石蜡行业技术创新的 PTE 呈上升趋势，达到了 GDEA 有效状态。然而，技术创新的SE呈现下降趋势，表明非GDEA有效状态。氯化石蜡企业对技术创新PTE的贡献呈持续加速下降趋势，而对SE的贡献一度为负，逐渐转向正向影响。因此，氯化石蜡行业的内部技术创新结构亟待优化和调整，以实现平衡。本研究从政府和企业两个角度提出了建议。

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来源期刊

Economic Analysis and Policy ECONOMICS-

CiteScore

9.80

自引率

9.20%

发文量

231

审稿时长

93 days

期刊介绍： Economic Analysis and Policy (established 1970) publishes articles from all branches of economics with a particular focus on research, theoretical and applied, which has strong policy relevance. The journal also publishes survey articles and empirical replications on key policy issues. Authors are expected to highlight the main insights in a non-technical introduction and in the conclusion.