School of Economics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei, 430074, People's Republic of China.
Environ Sci Pollut Res Int. 2023 Sep;30(45):101669-101680. doi: 10.1007/s11356-023-29489-3. Epub 2023 Sep 1.
Implementing industrial policies to develop the new energy vehicle industry and improve technological innovation related to new energy vehicles is essential for countries dealing with environmental pollution and climate change. This paper first examines the impact of a demand-side industry policy related to new energy vehicles on the technological innovation level of supply-side vehicle enterprises. Regarding the new energy vehicle purchase tax exemption policy implemented by the Chinese government in 2014 as a quasi-experiment, this paper constructs a multi-period difference-in-differences (DID) model to identify the impact of the demand-side preferential tax policy on the technological innovation level of vehicle enterprises. In our DID design, 178 enterprises are in the treatment group and 166 enterprises in the control group, with 3,440 balanced panel data of observations. The results show that this policy can significantly promote the technological innovation of new energy vehicle enterprises. This promotion effect is greater in magnitude in large-scale enterprises, high-tech enterprises, and enterprises producing passenger vehicles. Theoretically, we believe that the demand-side tax exemption policy mainly indirectly promotes the technological innovation level of automobile enterprises through the signal channel and profit channel.
实施产业政策以发展新能源汽车产业并提高新能源汽车相关技术创新水平，对于应对环境污染和气候变化的国家至关重要。本文首先考察了与新能源汽车相关的需求侧产业政策对供应侧汽车企业技术创新水平的影响。以中国政府 2014 年实施的新能源汽车购置税减免政策为准自然实验，本文构建了一个多期双重差分（DID）模型，以识别需求侧优惠税收政策对汽车企业技术创新水平的影响。在我们的 DID 设计中，178 家企业为处理组，166 家企业为控制组，有 3440 个观测的平衡面板数据。结果表明，该政策可以显著促进新能源汽车企业的技术创新。这种促进效应在大规模企业、高科技企业和生产乘用车的企业中更为显著。从理论上讲，我们认为需求侧免税政策主要通过信号渠道和利润渠道间接地促进了汽车企业的技术创新水平。
