[Sigmetrics] Bilateral and Multilateral Coauthorship and Citation Impact

[Jonathan Adams]

Dear colleagues

We have recently published a paper on: "Bilateral and Multilateral
Coauthorship and Citation Impact: Patterns in UK and US International
Collaboration" in Frontiers in Research Metrics & Analytics

International collaboration makes up an increasing, high citation-impact
share of research output, but the UK’s collaboration with key partners is
threatened by its decision to leave the EU. Data show that about 85% of US
and UK international collaboration is with only one or two partners,
usually among other “leading” research economies. Although highly
multinational research (10 or more authors) is growing more rapidly than
total research output, it actually remains scarce (about 1% of all
collaboration) among the established research economies. Analysis also
shows that the “citation bonus” contributed by international collaboration
is in fact both specific and limited; it should, therefore, be interpreted
with some care. For example, citation impact trends look different for
two-country and multi-country collaborations involving the same countries.
Impact also increases but then plateaus with increasing numbers of
partners. Further, we find that massively multinational papers are of such
a different kind that we suggest they should be excluded from standard
citation analysis.

The paper is avalable at  https://doi.org/10.3389/frma.2018.00012

Jonathan Adams
Director, ISI (a part of Clarivate Analytics)
Visitng Professor, King's College London
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