统计与信息论坛

数字经济与实体经济的深度融合为高技术制造业绿色转型注入了新动能，成为激发绿色创新活力、实现高质量发展的关键路径。基于2013—2022年中国30个省份的面板数据，从研发要素流动视角检验了数字经济对高技术制造业绿色创新效率的影响效应及作用机制。研究发现，数字经济能显著提升高技术制造业绿色创新效率和两阶段效率，且该结论在经过一系列稳健性和内生性检验后依然成立；机制分析表明，数字经济通过加速研发人员和研发资本流动有效提升高技术制造业绿色技术研发效率，而在绿色成果转化阶段，研发人员流动在两者之间发挥正向中介作用，研发资本流动的作用效果反之；异质性检验发现，东部地区数字经济的赋能效果显著强于中西部地区；同时，在知识产权保护程度较高及要素市场发育程度较好的地区，数字经济的促进效果更加明显。基于此，应加强数字基础设施建设、完善知识产权保护体系、注重绿色创新资源禀赋，以提升高技术制造业绿色创新效率和两阶段效率。

The deep integration of the digital economy and the real economy is a key driver for industrial transformation and green development.Especially under the guidance of the new development philosophy, this integration has injected new momentum into the green transformation of high-tech manufacturing, becoming a critical pathway to stimulate green innovation vitality and achieve high-quality development.As the main battlefield for scientific and technological innovation, high-tech manufacturing is also the core supporting force for the green transformation of the modern industrial system.Enhancing its green innovation efficiency amid the digital economy wave is an urgent issue that needs to be addressed.This study, based on panel data for 30 provinces in China from 2013 to 2022,examines the impact and mechanisms of the digital economy on the green innovation efficiency of high-tech manufacturing from the perspective of R&D factor mobility.The findings indicate that the digital economy significantly enhances the green innovation efficiency and two-stage efficiency in high-tech manufacturing, and it remains valid after a series of robustness and endogeneity tests.Mechanism analysis indicates that the digital economy enhances the green technology R&D efficiency in high-tech manufacturing by accelerating the flow of R&D personnel and capital.During the green technology commercialization phase, the flow of R&D personnel plays a positive mediating role, while the flow of R&D capital has the opposite effect.Heterogeneity tests reveal that the enabling effects of the digital economy are significantly stronger in eastern regions than in central and western regions.Additionally, in regions with higher levels of intellectual property protection and better-developed factor markets, the promotional effects of the digital economy are more pronounced.On the basis, the following policy recommendations are proposed: First, the government should strengthen digital-infrastructure construction, improve digital application levels, and promote the leading role of the digital industry in the green transformation of high-tech manufacturing.Second, the government should improve the intellectual property protection system, clarify the boundaries of property rights protection, and effectively safeguard the rights and interests of green technology R&D entities.Furthermore, it is necessary to formulate differentiated property rights protection strategies tailored to the characteristics of high-tech sub-industries.Last, attention should be paid to the endowment of green innovation resources.Digital resources should be reasonably allocated to narrow the regional digital-development.And active encouragement should be given to technological exchanges among high-tech enterprises to foster a proactive green R&D environment.