Title: Mapping the network of global science: comparing international co-authorships from 1990 to 2000
Author: Caroline S. Wagner, Loet Leydesdorff
Science and Technology Dynamics, Amsterdam School of Communications Research (ASCoR), University of Amsterdam, Kloveniersburgwal 48, 1012 CX Amsterdam, The Netherlands.
Science and Technology Dynamics, Amsterdam School of Communications Research (ASCoR), University of Amsterdam, Kloveniersburgwal 48, 1012 CX Amsterdam, The Netherlands
Journal: Int. J. of Technology and Globalisation, 2005 Vol.1, No.2, pp.185 - 208
Abstract: Science and technology has been shown to result from dynamic interactions occurring at many levels and across various sectors. This study maps and analyses the network operating at the global level. Using the Science Citation Index (CD-Rom version) for 1990 and 2000, the networks created by international co-authorships are revealed. We analyse the observed linkages at the global level and on regional bases. The architecture of the network is further explored using statistical methods and factor analysis to reveal intense relationships as well as the core members of a global network. Findings show that, in the ten years between 1990 and 2000, the global network has expanded to include more nations, but the structure of this network has become more pronounced. Regional networks show emerging hubs. However, in some cases, the regions have been disconnected from the global level. A core set of advanced industrial nations has expanded from six in 1990 to eight in 2000. Factor analysis suggests that various large countries compete with each other for partners in the global network.
Keywords: international cooperation; science partners; technology partners; global science; global networks; international co-authorships; regional networks; international collaboration.
Available online 14 May 2005