Abstract
We examined the male-female collaboration practices of all internationally visible Polish university professors (N = 25,463) based on their Scopus-indexed publications from 2009-2018 (158,743 journal articles). We merged a national registry of 99,935 scientists (with full administrative and biographical data) with the Scopus publication database, using probabilistic and deterministic record linkage. Our unique biographical, administrative, publication, and citation database (The Polish Science Observatory) included all professors with at least a doctoral degree employed in 85 research-involved universities. We determined what we term an individual publication portfolio for every professor, and we examined the respective impacts of biological age, academic position, academic discipline, average journal prestige, and type of institution on the same-sex collaboration ratio. The gender homophily principle (publishing predominantly with scientists of the same sex) was found to apply to male scientists - but not to females. The majority of male scientists collaborate solely with males; most female scientists, in contrast, do not collaborate with females at all. Across all age groups studied, all-female collaboration is marginal, while all-male collaboration is pervasive. Gender homophily in research-intensive institutions proved stronger for males than for females. Finally, we used a multi-dimensional fractional logit regression model to estimate the impact of gender and other individual-level and institutional-level independent variables on gender homophily in research collaboration.
Highlights
Science is a collaborative enterprise, with scientists collaborating internationally, nationally, and institutionally (Wuchty, Jones, & Uzzi, 2007; Wagner, 2018)
Following a comprehensive literature review and based on prior in-depth knowledge of the Polish academic science system, we have formulated the following seven research questions leading to seven hypotheses: The Polish science and higher education systems have been studied intensively
We would expect that the same-sex collaboration ratio is higher for female than for male scientists
Summary
Science is a collaborative enterprise, with (male and female) scientists collaborating internationally, nationally, and institutionally (Wuchty, Jones, & Uzzi, 2007; Wagner, 2018). The dominating view in literature is that, on average, males collaborate more often with males, and females collaborate more often with females (Jadidi, Karimi, Lietz, & Wagner, 2018; Lerchenmueller, Hoisl, & Schmallenbach, 2019; Wang, Lee, West, Bergstrom, & Erosheva, 2019; Holman & Morandin, 2019; Boschini & Sjögren, 2007; McDowell & Smith, 1992). This hypothesis is being tested using a large-scale dataset with unique variables. We examine the same-sex collaboration ratio at an individual level of every internationally visible Polish scientist (i.e., only authors with Scopus-indexed publications) and generalize the results from the individual level to the level of the national higher education system
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