经济政策不确定性对新能源汽车产业全要素生产率的影响

经济政策不确定性对新能源汽车产业全要素生产率的影响【摘要】本文基于 2014—2018 年中国沪深 A 股上市的涉及新能源汽车的公司财务数据，以全要素生产率(TFP) 作为被解释变量，采用 LP 法测算新能源汽车产业全要素生产率，建立面板数据计量模型，实证检验经济政策不确定性（EPU）对新能源汽车产业全要素生产率的影响。实证结果表明，经济政策不确定性越高，越抑制新能源汽车产业全要素生产率的提升。理论机制研究发现，在技术创新层面上，经济政策不确定性会促使新能源汽车产业加大研发投入，提高技术能能力，从而促进全要素生产的提升。据此，本文提出要完善市场机制，提高政府政策透明度，以及新能源汽车产业要及时调整经营行为等相关政策建议。【关键词】经济政策不确定性 全要素生产率 新能源汽车 研发投入The Influence of Economic Policy Uncertainty on Total Factor Productivity of New Energy Vehicle IndustryProfessional Class: Economics and Finance 1602 Li YoubinInstructor: Cao Yanqiao[Abstract] This article is based on the financial data of companies involved in new energy vehicles listed on the Shanghai and Shenzhen A-shares in 2014-2018, using total factor productivity (TFP) as the interpreted variable, using the LP method to measure the total factor productivity of the new energy vehicle industry and establishing a panel data measurement model , Empirically test the impact of economic policy uncertainty (EPU) on the total factor productivity of the new energy vehicle industry. The empirical results show that the higher the uncertainty of economic policy, the more inhibited the increase in total factor productivity of the new energy vehicle industry. Theoretical mechanism research found that at the level of technological progress, economic policy uncertainty will prompt the new energy vehicle industry to increase investment in research and development, and improve technical capacity, thereby promoting the promotion of total factor producti...