The rapid development and widespread integration of digital technologies have profoundly changed the economic structure, becoming a key force in reshaping the national innovation landscape and empowering new productive forces. Based on the invention patent data for key digital technologies from 2014 to 2022 in China’s prefecture-level cities, this study classifies seven types of key digital technologies and quantitatively compares the digital technology integration capabilities of cities. It explores the process and mechanisms through which the integration of key digital technologies impacts technological breakthroughs in cities. The study finds that: firstly, eastern cities lead the country in digital technology integration capabilities, but in recent years, cities in the central and western regions (such as Wuhan, Chengdu, and Xi’an) have risen rapidly, breaking the previous pattern dominated by eastern cities, and the gap between regions has generally narrowed. Secondly, the degree of integration among digital technologies has deepened, with artificial intelligence playing a key role. Furthermore, the integration of digital and non-digital technologies (especially in the fields of chemistry and medicine) has significantly increased, with quantum information technology exhibiting the highest level of cross-disciplinary integration. Finally, the integration of all seven types of digital technologies has significantly promoted technological breakthroughs in cities, with the metaverse having the most pronounced effect. Mediation effect analysis shows that the integration of key digital technologies promotes technological breakthroughs in cities through knowledge related variety, unrelated variety.
YE Qin
,
JIANG Hai-yun
,
ZENG Gang and Colleagues
. Research on the impact of key digital technology convergence on urban technology breakthrough[J]. Urban Problems, 2024
, 352(11)
: 33
-41
.
DOI: 10.13239/j.bjsshkxy.cswt.241105
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