<title>Abstract</title>
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<title>Purpose</title>
The purpose of this research is to provide evidence for decision-makers to realize the potentials of collaborations between countries/regions via the scientometric analysis of co-authoring in academic publications.


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<title>Design/methodology/approach</title>
The approach is that Osaka University, which has set a strategy to become a global campus, is positioned to have a leading role to enhance such collaborations. This research measures co-authoring relations between Osaka University and other countries/regions to identify networks for fostering strong research collaborations.


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<title>Findings</title>
Five countries are identified as candidates for the future global campuses of Osaka University based on three factors, co-authoring relations, GDP growth, and population growth.


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<title>Research limitations</title>
The main limitation of this study is not being able to use the relations by the former positions of authors in Osaka University, because the data retrieved is limited by the query of the organization name at the first step.


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<title>Practical implications</title>
The significance of this work is to provide evidence for the university strategy to expand abroad based on the quantity and visualization of trends.


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<title>Originality/value</title>
With wider practical implementations, the approach of this research is useful in making a strategic roadmap for scientific organizations that intend to collaborate internationally.


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