16 Pages Posted: 8 Mar 2016
Date Written: March 19, 2015
Using Web-of-Science data, portfolio analysis in terms of journal coverage can be projected on 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 the 2D3 measure proposed by Zhang et al. (2015). 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).
Keywords: map, journal, portfolio, firm, university, city, country
Suggested Citation: Suggested Citation
Leydesdorff, Loet and Heimeriks, Gaston and Rotolo, Daniele, Journal Portfolio Analysis for Countries, Cities, and Organizations: Maps and Comparisons? (March 19, 2015). SWPS 2015-11. Available at SSRN: https://ssrn.com/abstract=2743222 or http://dx.doi.org/10.2139/ssrn.2743222