数字产业化与创新促进经济双循环了吗?

Did Digital Industrialization and Innovation Promote Double Circulation of Economy?

为探讨数字产业化、创新和经济双循环的影响和作用机制,本文基于2014~2019年的省际面板数据,通过调节效应、中介效应和逐步回归方法进行检验。结果表明:1) 数字产业化、创新和经济双循环各变量间显著正相关。财政支出科学技术支出对于数字产业化对经济双循环的调节作用显著,财政支出科学技术支出对于创新对经济双循环的调节作用显著。2) 创新在数字产业化对经济双循环中的链式中介效应显著。3) 新产品销售收入扣除开发经费支出、互联网宽带接入端口数量和按地区规模分R&D经费等3个变量对经济双循环影响显著。研究一定程度上解释了数字产业化和创新对经济双循环的影响机制,丰富了经济双循环促进方面的研究成果。

In order to explore the impact and mechanism of the double cycle of digital industrialization, innovation and economy, this paper tested the moderating effect, mediating effect and step-to-step regression method based on the provincial panel data from 2014 to 2019. The results show that: 1) There is a significant positive correlation among the variables of digital industrialization, innovation and economy. Fiscal expenditure science and technology expenditure plays a significant role in the adjustment of digital industrialization to the economic double cycle, and fiscal expenditure science and technology expenditure plays a significant role in the adjustment of innovation to the economic double cycle. 2) Innovation has a significant chain mediating effect on the double cycle of digital industrialization. 3) Sales revenue of new products deducting development expenditure, number of Internet broadband access ports and R&D expenditure by region have significant influence on the double cycle of economy. To some extent, the research explains the influence mechanism of digital industrialization and innovation on the double cycle of economy and enriches the research results on the promotion of the double cycle of economy.