From: Stevan Harnad <[log in to unmask]>
Date: Sat, 20 Jul 2013 13:39:01 -0400

OA 2013: Tilting at the Tipping Point

Summary: The findings of Eric Archambault’s (2013) pilot study “The
Tipping Point - Open Access Comes of Age” on the percentage of OA that
is currently available are very timely, welcome and promising. The
study finds that the percentage of articles published in 2008 that are
OA in 2013 is between 42-48%. It does not estimate, however, when in
that 5-year interval the articles were made OA. Hence the study cannot
indicate what percentage of articles being published in 2013 is being
made OA in 2013. Nor can it indicate what percentage of articles
published before 2013 is OA in 2013. The only way to find that out is
through a separate analysis of immediate Gold OA, delayed Gold OA,
immediate Green OA, and delayed Green OA, by discipline.

See: http://openaccess.eprints.org/index.php?/archives/1022-OA-2013-.html