Higher-order rich-club phenomenon in collaborative research grant networks

Kazuki Nakajima, Kazuyuki Shudo and Naoki Masuda ()
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Kazuki Nakajima: Tokyo Institute of Technology
Kazuyuki Shudo: Tokyo Institute of Technology
Naoki Masuda: State University of New York at Buffalo

Scientometrics, 2023, vol. 128, issue 4, No 18, 2429-2446

Abstract: Abstract Modern scientific work, including writing papers and submitting research grant proposals, increasingly involves researchers from different institutions. In grant collaborations, it is known that institutions involved in many collaborations tend to densely collaborate with each other, forming rich clubs. Here we investigate higher-order rich-club phenomena in networks of collaborative research grants among institutions and their associations with research impact. Using publicly available data from the National Science Foundation in the US, we construct a bipartite network of institutions and collaborative grants, which distinguishes among the collaboration with different numbers of institutions. By extending the concept and algorithms of the rich club for dyadic networks to the case of bipartite networks, we find rich clubs both in the entire bipartite network and the bipartite subnetwork induced by the collaborative grants involving a given number of institutions up to five. We also find that the collaborative grants within rich clubs tend to be more impactful in a per-dollar sense than the control. Our results highlight advantages of collaborative grants among the institutions in the rich clubs.

Keywords: Research grants; Collaboration networks; Rich-club phenomenon; Research impact (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:spr:scient:v:128:y:2023:i:4:d:10.1007_s11192-022-04621-1

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DOI: 10.1007/s11192-022-04621-1

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