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The Access/Impact Problem and the Green and Gold Roads to Open Access: An Update

Harnad, Stevan, Brody, Tim, Vallieres, Francois, Carr, Les, Hitchcock, Steve, Gingras, Yves, Oppenheim, Charles, Hajjem, Chawki and Hilf, Eberhardt (2008) The Access/Impact Problem and the Green and Gold Roads to Open Access: An Update Serials Review, 34, (1), pp. 36-40.

Record type: Article


The research access/impact problem arises because journal articles are not accessible to all of their would-be users; hence, they are losing potential research impact. The solution is to make all articles open access (OA, i.e., accessible online, free for all). OA articles have significantly higher citation impact than non-OA articles. There are two roads to OA: the “golden” road (publish your article in an OA journal) and the “green” road (publish your article in a non-OA journal but also self-archive it in an OA archive). About 10% of journals are gold, but over 90% are already green (i.e., they have given their authors the green light to self-archive); yet only about 10–20% of articles have been self-archived. To reach 100% OA, self-archiving needs to be mandated by researchers’ employers and funders, as they are now increasingly beginning to do

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Published date: March 2008
Keywords: self-archiving, research impact, citation, scientometrics, open access, mandates
Organisations: Web & Internet Science


Local EPrints ID: 265852
PURE UUID: d469f5dc-7a65-4827-a688-1d06fb3ec2e7
ORCID for Les Carr: ORCID iD

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Date deposited: 06 Jun 2008 14:49
Last modified: 10 Nov 2017 14:18

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Author: Stevan Harnad
Author: Tim Brody
Author: Francois Vallieres
Author: Les Carr ORCID iD
Author: Steve Hitchcock
Author: Yves Gingras
Author: Charles Oppenheim
Author: Chawki Hajjem
Author: Eberhardt Hilf

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