Researchers affiliated with multiple institutions are increasingly seen in current scientific environment. In this paper we systematically analyze the multi-affiliated authorship and its effect on citation impact, with focus on the scientific output of research collaboration. By considering the nationality of each institutions, we further differentiate the national multi-affiliated authorship and international multi-affiliated authorship and reveal their different patterns across disciplines and countries. We observe a large share of publications with multi-affiliated authorship (45.6%) in research collaboration, with a larger share of publications containing national multi-affiliated authorship in medicine related and biology related disciplines, and a larger share of publications containing international type in Space Science, Physics and Geosciences. To a country-based view, we distinguish between domestic and foreign multi-affiliated authorship to a specific country. Taking G7 and BRICS countries as samples from different S&T level, we find that the domestic national multi-affiliated authorship relate to more on citation impact for most disciplines of G7 countries, while domestic international multi-affiliated authorships are more positively influential for most BRICS countries.

中文翻译：

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国内和国际多重隶属关系对引文影响的影响

隶属于多个机构的研究人员越来越多地出现在当前的科学环境中。在本文中，我们系统地分析了多附属作者及其对引文影响的影响，重点是研究合作的科学产出。通过考虑每个机构的国籍，我们进一步区分了国家多方作者和国际多方作者，并揭示了它们跨学科和跨国家的不同模式。我们观察到在研究合作中具有多方作者身份的大量出版物 (45.6%)，较大份额的出版物包含医学相关和生物学相关学科的国家多方作者身份，以及较大份额的包含国际类型的出版物空间科学，物理学和地球科学。对于基于国家的观点，我们区分了特定国家的国内和国外多附属作者。以七国集团和金砖国家作为不同科技层面的样本，我们发现国内多方作者对G7国家大部分学科的引文影响更大，而国内国际多方作者对大多数金砖国家的影响更大.