EconPapers    
Economics at your fingertips  
 

Betweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks

Alireza Abbasi, Liaquat Hossain and Loet Leydesdorff

Journal of Informetrics, 2012, vol. 6, issue 3, 403-412

Abstract: We analyze whether preferential attachment in scientific coauthorship networks is different for authors with different forms of centrality. Using a complete database for the scientific specialty of research about “steel structures,” we show that betweenness centrality of an existing node is a significantly better predictor of preferential attachment by new entrants than degree or closeness centrality. During the growth of a network, preferential attachment shifts from (local) degree centrality to betweenness centrality as a global measure. An interpretation is that supervisors of PhD projects and postdocs broker between new entrants and the already existing network, and thus become focal to preferential attachment. Because of this mediation, scholarly networks can be expected to develop differently from networks which are predicated on preferential attachment to nodes with high degree centrality.

Keywords: Collaboration; Coauthorship; Network; Preferential attachment; Cumulative advantage; Social network analysis; Centrality (search for similar items in EconPapers)
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (83) Track citations by RSS feed

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S175115771200003X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:infome:v:6:y:2012:i:3:p:403-412

DOI: 10.1016/j.joi.2012.01.002

Access Statistics for this article

Journal of Informetrics is currently edited by Leo Egghe

More articles in Journal of Informetrics from Elsevier
Bibliographic data for series maintained by Catherine Liu ().

 
Page updated 2024-02-18
Handle: RePEc:eee:infome:v:6:y:2012:i:3:p:403-412