(archivists.org): Velterop (2010) has conjectured that more articles are being made Open Access (OA) by publishing them in an OA journal ("Gold OA") than by publishing them in a conventional journal and self-archiving them ("Green OA"), even where self-archiving is mandatory. Of our sample of 11,801 articles published 2002-2008 by authors at four institutions that mandate self-archiving, 65.6% were self-archived, as required (63.2% Green only, 2.4% both Green and Gold). For 42,395 keyword-matched, non-mandated control articles, the percentage OA was 21.9% Green and 1.5% Gold. Velterop’s conjecture is the wrongest of all precisely where OA is mandated..
Category: Articles
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