Analysis and tests of static and dynamic SDM.

The development of the digital economy in China facilitates the transformation of old and new growth drivers. It can greatly promote the upgrading of technological innovation capacity, realize economies of scale and scope, and constantly promote the generation of new industries and new forms of business with the deep integration of digital economy and traditional industries, thereby promoting the high-quality development of China’s economy. This paper uses inter-provincial panel data from 2013 to 2020 and a dynamic spatial Durbin model to quantify the impact of the digital economy on regional technological innovation capability (RTIC). The results show that: (1) the digital economy has positive spatial spillover effect and can boost the province’s and neighboring provinces’ regional technological innovation capability; (2) regional technological innovation capability has obvious spatial and temporal aggregation effects; (3) the impact of the digital economy on RTIC is mainly short-term effects, and there is regional heterogeneity, with the western region experiencing the highest effects and the eastern region experiencing less. Therefore, it is urgent to accelerate the development speed of the digital economy, grasp the law of dynamic economic development, identify the regional heterogeneity of the digital economy development, and deepen inter-regional digital technology cooperation to comprehensively drive the improvement of regional technological innovation capability.中国数字经济的发展助力新旧增长动能转换，可显著推动技术创新能力升级，实现规模经济与范围经济，并伴随数字经济与传统产业的深度融合，持续催生新兴产业与新业态，进而推动中国经济实现高质量发展。本文采用2013-2020年的省际面板数据，结合动态空间杜宾模型（Dynamic Spatial Durbin Model），量化探究数字经济对区域技术创新能力（Regional Technological Innovation Capability, RTIC）的影响效应。研究结果表明：（1）数字经济具有正向空间溢出效应，能够同时提升本省及邻近省份的区域技术创新能力；（2）区域技术创新能力存在显著的时空集聚特征；（3）数字经济对区域技术创新能力的影响主要体现为短期效应，且存在区域异质性，其中西部地区的影响效应最为突出，东部地区相对较弱。据此，亟需加快数字经济发展进程，把握经济动态发展规律，厘清数字经济发展的区域异质性特征，深化跨区域数字技术合作，以全面推动区域技术创新能力的提升。