Abstract

https://ssrn.com/abstract=2743222
 


 



Journal Portfolio Analysis for Countries, Cities, and Organizations: Maps and Comparisons?


Loet Leydesdorff


University of Amsterdam - Amsterdam School of Communication Research (ASCoR)

Gaston Heimeriks


Utrecht University

Daniele Rotolo


SPRU (Science Policy Research Unit), University of Sussex

March 19, 2015

SWPS 2015-11

Abstract:     
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).

Number of Pages in PDF File: 16

Keywords: map, journal, portfolio, firm, university, city, country


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Date posted: March 8, 2016  

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

Contact Information

Loet Leydesdorff (Contact Author)
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) ( email )
PO Box 15793
Amsterdam, 1001 NG
Netherlands
HOME PAGE: http://www.leydesdorff.net
Gaston Heimeriks
Utrecht University ( email )
Vredenburg 138
Utrecht, 3511 BG
Netherlands
HOME PAGE: http://heimeriks.net
Daniele Rotolo
SPRU (Science Policy Research Unit), University of Sussex ( email )
Jubilee Building - Room 383
Brighton, Sussex BN19SL
United Kingdom
HOME PAGE: http://www.danielerotolo.com
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