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Author(s): Wagner CS; Leydesdorff L
Title: Network structure, self-organization, and the growth of international collaboration in science
Source: RESEARCH POLICY 34 (10): 1608-1618
Date: 2005 DEC
Document Type: Journal : Article
DOI: 10.1016/j.respol.2005.08.002
Language: English
Comment:
Address: George Washington Univ, Ctr Int Sci & Technol Policy, Washington, DC 20057 USA.
Univ Amsterdam, ASCoR, Amsterdam, Netherlands. Reprint: Wagner, CS, George Washington Univ, Ctr Int Sci & Technol Policy, 1957 E St NW, Washington, DC 20057 USA.
E-mail: cswagner@gwu.edu
loet@leydesdorff.net Author Keywords: scientific collaboration; social network analysis; science policy; social systems; preferential attachment
KeyWords Plus: SCIENTIFIC COLLABORATION; LOTKA LAW; PATTERNS; COOPERATION; PUBLICATION; AUTHORSHIP; COUNTRIES; EVOLUTION;
PROFILES; MODEL
Abstract: Different approaches have been used to analyse international collaboration in science but none can fully explain its rapid growth. Using international co-authorships, we test the hypothesis that international collaboration is a self-organising network. Applying tools from network analysis, the paper shows that the growth of international co-authorships can be explained based on the organising principle of preferential attachment, although the attachment mechanism deviates from an ideal power-law. Several explanations for the deviation are explored, including that of the influence of institutional constraints on the mechanism of self-organisation. (c) 2005 Elsevier B.V. All rights reserved.
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