摘要：为应对全球气候变化，中国政府出台了系列行动以降低碳排放强度。其中，数字技术创新作为新的“技术-经济范式”，将在履行气候变化责任与义务中发挥突出作用。因此，本文尝试利用专利检索方式衡量中国30个省份2003—2019年数字技术创新水平，并在此数据基础上评估数字技术创新对碳排放强度的直接效应、间接效应以及异质性影响。研究结果表明，数字技术创新不仅可以直接降低碳排放强度，还可以通过结构效应（促进产业结构升级）和效率效应（提升全要素生产率）间接减少碳排放强度。进一步检验发现数字技术创新影响碳排放强度有明显的区域异质性以及行业异质性。最后，本文建议政府加快数字技术发展，推动产业结构升级，提升资源配置效率，以实现快速碳减排。
关键词：数字技术创新；碳排放强度；专利检索；产业结构升级；全要素生产率
The Impact of Digital Technology Innovation on Carbon Emission Intensity: Based on the Analysis of Digital Technology Related to Patent Retrieval
Dong Kangyin, Wang Jianda, Jiang Qingzhe
Abstract: To address global climate change, the Chinese government has implemented a series of actions to reducecarbon emissions intensity. Digital technology innovation, as a new“technology-economic paradigm,”will play aprominent role in fulfilling climate change responsibilities and obligations. Therefore, this article attempts to measure the level of digital technology innovation in 30 provinces of China from 2003 to 2019 using a patent retrieval method,and based on this data, assess the direct effects, indirect effects, and heterogeneity effects of digital technology innovation on carbon emission intensity. The research results show that digital technology innovation can not only directlyreduce carbon emission intensity, but also indirectly decrease it through structural effects (increasing industrial structure upgrading) and efficiency effects (improving total factor productivity). Further testing reveals significant regionaland sectoral heterogeneity in the impact of digital technology innovation on carbon emission intensity. Finally, this article suggests that the government should accelerate the development of digital technology, promote the industrialstructure upgrading, increase the resource allocation efficiency, and achieve rapid emission reduction.
Keywords: Digital Technology Innovation; Carbon Emission Intensity; Patent Retrieval; Industrial Structure Upgrading; Total Factor Productivity
DOI:10.19511/j.cnki.jee.2023.02.001
