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  • Item type:Publication,
    Gender-based homophily in research: A large-scale study of man-woman collaboration Open PDF 
    (2021)
    Kwiek, M.
    ;
    Roszka, W.
    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. © 2021 EDP Sciences. All rights reserved.
  • Item type:Publication,
    Gender disparities in research fields in Russia: dissertation authors and their mentors Open PDF 
    (2024)
    Chechik, E.
    This study examines gender disparities in research fields as measured by scientific output in dissertations at two levels within the Russian academic system: PhD and the more advanced Doctor of Science (DS). The data for this study were extracted from over 250,000 dissertations spanning from 2005 to 2016. The chosen data source offers several advantages over bibliometric data for the purpose of this study: (a) it provides representative data, including the Social Sciences and Humanities and STEM fields; (b) gender disambiguation is straightforward due to the gendered nature of Russian patronyms; (c) it allows for easier attribution of text, as there is no need to attribute it to the first author in multi-authored publications; (d) it provides insights into the career stage by differentiating between PhD and DS authors, as well as between PhD and DS mentors. The results of this study reveal a gender imbalance across research fields and academic career levels. Furthermore, our observations indicate that male mentors more frequently collaborate with male authors, and female mentors with female authors, exceeding what would be expected by random chance. This gender homophily is evident in most research fields. While the results largely confirm findings from studies conducted in other countries, the four advantages mentioned above make this study an essential extension of studies based on bibliometric data. This research sheds light on the gender structure within research fields in Russia and invites nuanced discussions about achieving gender equality in the context of identified gender homophily. © Akadémiai Kiadó, Budapest, Hungary 2024.