Title
Journal portfolio analysis for countries, cities, and organizations: Maps and comparisons
Abstract
AbstractUsing Web of Science data, portfolio analysis in terms of journal coverage can be projected onto a base map for units of analysis such as countries, cities, universities, and firms. The units of analysis under study can be compared statistically across the 10,000+ journals. The interdisciplinarity of the portfolios is measured using Rao-Stirling diversity or Zhang etal.'s improved measure 2D3. At the country level we find regional differentiation e.g., Latin American or Asian countries, but also a major divide between advanced and less-developed countries. Israel and Israeli cities outperform other nations and cities in terms of diversity. Universities appear to be specifically related to firms when a number of these units are exploratively compared. The instrument is relatively simple and straightforward, and one can generalize the application to any document set retrieved from the Web of Science WoS. Further instruction is provided online at http://www.leydesdorff.net/portfolio.
Year
DOI
Venue
2015
10.1002/asi.23551
Periodicals
Keywords
DocType
Volume
knowledge representation,journals,management information systems
Journal
67
Issue
ISSN
Citations 
3
2330-1635
5
PageRank 
References 
Authors
0.41
7
3
Name
Order
Citations
PageRank
Loet Leydesdorff14987381.86
gaston heimeriks212510.26
Daniele Rotolo3928.06