@ARTICLE{Ciereszko_Kinga_Hierarchical_2019, author={Ciereszko, Kinga}, number={No 2}, journal={Nauka}, pages={161-173}, howpublished={online}, year={2019}, publisher={Biuro Upowszechniania i Promocji Nauki PAN}, abstract={This article analyses a hierarchical structure of academia within two academic social media networking sites, i.e. Academia.edu and ResearchGate. In this study, I investigate profiles (in these two services) of all academic staff members of Adam Mickiewicz University in Poznań (N = 2661). I use the concept of prestige to analyse whether the hierarchical structure of academia is being reproduced in analysed services. Since prestige is an unobservable construct, I use two indicators to measure it: the number of followers and the number of views. My findings show that the hierarchical structure differs between Academia.edu and Research- Gate. While the structure of ResearchGate is explicitly hierarchical in reference to degrees of the researchers (a higher degree is related to a higher value of the prestige indicators), the structure of Academia.edu resembles a reversed pyramid (a higher degree is related to a lower value of the prestige indicators). The article concludes with a discussion concerning possible causes of differences between services in terms of reproducing the hierarchical structure. Moreover, I provide potential implications of the results as well as the justification of the necessity of using the concept of prestige to determine hierarchical structure of academia.}, type={Artykuły / Articles}, title={Hierarchical structure of academia in academic social networking sites: the case study of Adam Mickiewicz University in Poznań}, URL={http://journals.pan.pl/Content/112785/PDF/N%23219-11-Ciereszko.pdf}, doi={10.24425/nauka.2019.129238}, keywords={academic social networking sites, Academia.edu, ResearchGate, hierarchy in academia}, }