Title
An econometric property of the g-index An econometric property of the g-index
Author
Faculty/Department
Faculty of Social Sciences. Instructional and Educational Sciences
Publication type
article
Publication
Oxford ,
Subject
Documentation and information
Computer. Automation
Source (journal)
Information processing and management. - Oxford
Volume/pages
45(2009) :4 , p. 484-489
ISSN
0306-4573
ISI
000267170100008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Let X = (x1, , xN) and Y = (y1, , yN) be two decreasing vectors with positive coordinates such that (representing e.g. citation data of articles of two authors or journals with the same number of publications and the same number of citations (in total)). It is remarked that if the Lorenz curve L(X) of X is above the Lorenz curve L(Y) of Y, then the g-index g(X) of X is larger than or equal to the g-index g(Y) of Y. We indicate that this is a good property for so-called impact measures which is not shared by other impact measures such as the h-index. If L(X) = L(Y) and we prove that g(X) g(Y). We can even show that g(X) > g(Y) in case of integer values xi and yi and we also investigate this property for other impact measures.
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