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Digit ratio (2D:4D) and social integration: an effect of prenatal sex hormones
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SYSNO ASEP 0486873 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Digit ratio (2D:4D) and social integration: an effect of prenatal sex hormones Author(s) Kovářík, Jaromír (NHU-N)
Brañas-Garza, P. (GB)
Davidson, M. W. (US)
Haim, D. A. (US)
Carcelli, S. (US)
Fowler, J. H. (US)Source Title Network Science - ISSN 2050-1242
Roč. 5, č. 4 (2017), s. 476-489Number of pages 14 s. Language eng - English Country US - United States Keywords social networks ; digit ratio ; prenatal androgens Subject RIV AH - Economics OECD category Applied Economics, Econometrics R&D Projects GA14-22044S GA ČR - Czech Science Foundation (CSF) Institutional support NHU-N - RVO:67985998 UT WOS 000416732200004 EID SCOPUS 85043458214 DOI 10.1017/nws.2017.4 Annotation The position people occupy in their social and professional networks is related to their social status and has strong effects on their access to social resources. While attainment of particular positions is driven by behavioral traits, many biological factors predispose individuals to certain behaviors and motivations. Prior work on exposure to fetal androgens (measured by second-to-fourth digit ratio, 2D:4D) shows that it correlates with behaviors and traits related to social status, which might make people more socially integrated. However, it also predicts certain anti-social behaviors and disorders associated with lower socialization. We explore whether 2D:4D correlates with network position later in life and find that individuals with low 2D:4D become more central in their social environment. Interestingly, low 2D:4D males are more likely to exhibit high betweenness centrality (they connect separated parts of the social structure), while low 2D:4D females are more likely to exhibit high in-degree centrality (more people name them as friends). These gender-specific differences are reinforced by transitivity (the likelihood that one's friends are also friends with one another): neighbors of low 2D:4D men tend not to know each other, the contrary is observed for low 2D:4D women. Our results suggest that biological predispositions influence the organization of human societies and that exposure to prenatal androgens influences different status seeking behaviors in men and women. Workplace Economics Institute Contact Tomáš Pavela, pavela@cerge-ei.cz, Tel.: 224 005 122 Year of Publishing 2018
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