The authors' analysis shows a decline in the total number of papers co-authored by Chinese and international researchers in 2022, the first decrease since 2013.
The proportion of China's research papers co-authored with international peers peaked at 26.6% in 2018 but decreased by 7.2% by 2023, despite a significant increase in the total number of articles.
The decline in internationally co-authored papers is primarily attributed to China's diminishing collaborations with US researchers, showing a 6.4% decrease from its peak in 2017 to 2023.
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