Open Access in 2013: Reaching the 50% Milestone

Abstract

This article reports a 2013 study on the percentage of Open Access (OA) journal articles. Following the 2009 Björk et al. (2010) model, this study generated 2,655 random sample articles published in 2012 from Scopus. It found that 37.8% of Scopus samples have free full text on the Internet, a significant increase from 20.4% recorded by the Björk et al. study. Because the vast majority of the 9,900 OA journals listed by DOAJ are not indexed by Scopus, this study projects with caution that human history is reaching a milestone; either the percentage of OA articles published in the previous year is very close to 50% or it has passed that mark.

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