Release time:2025-11-10  Hits:

• Impact Factor:6.614
• Journal:Geographical Science
• Key Words:overseas R&D investments; international sanctions; network structure; evolution; influencing mechanism
• Abstract:The world is undergoing profound and accelerating changes unseen in a century, with major-power technological competition and geopolitical risks profoundly shaping the R&D globalization. Drawing on global overseas R&D investment data and international sanctions data from 2003 to 2023, this study employs social network analysis, spatial exploratory analysis, and weighted exponential random graph models to explore the evolutionary characteristics of the global overseas R&D investment network and the impact mechanisms of international sanctions. The findings reveal that: (1) In terms of topological evolution, the global overseas R&D investment network has expanded in scale, exhibited increasing complexity and density, and shown signs of decentralization. (2) Spatially, the network has developed a multilayered core-periphery structure centered around the United States, while maintaining a stable “triangular” configuration among North America, Western Europe, and East Asia. (3) The evolution of the global overseas R&D investment network is jointly driven by endogenous network structures, actor attributes, and external relational factors. Notably, the sender effect of international sanctions is significantly positive, while the receiver effect is significantly negative, with both effects diminishing over time. (4) Different types of international sanctions exhibit markedly heterogeneous effects on the evolution of the global overseas R&D investment network.
• Note:扬州大学人文社会科学四级期刊
• Co-author:Huang Xiaodong,Zhang Qiang,Fan Fei
• First Author:Li Tingzhu
• Indexed by:Research Atricle
• Correspondence Author:Qin Xionghe
• Discipline:Natural Science
• First-Level Discipline:Geography
• Document Type:CSSCI
• ISSN No.:1000-0690
• Translation or Not:no
• CN No.:22-1124/P