Open Access publishing makes plagiarism more easily detectable.
Some authors are initially concerned that allowing open access to one’s work will increase plagiarism. In fact, open access can be seen as a form of greater quality control because date-stamped material is freely accessible to all, rather than hidden in hard to find or access journals, making plagiarism more easily detectible. Importantly, copyright ownership is unaffected by making one’s work open access, which is a change in distribution method, not a copyright release.
Anonymous. (2010).Protecting ideas, plagiarism and open access: Clearing up some copyright confusion. Sloan Consortium. http://www.aln.org/node/2485
Brandt, J., Gutbrod, M., Wellnitz, O. & Wolf, L. (2010) Plagiarism detection in Open Access Publications. Proceedings of the 4th International Plagiarism Conference, Newcastle Upon Tyne, UK, June 2010.
Eprints. (n.d.) Plagiarism. Self-Archiving FAQ.
Khoshsaligheh, M. (2010, 8 January). Plagiarism: Causes and Solutions. Notes on Translation Studies. http://translationstudies.wordpress.com/2010/01/08/plagiarism-causes-and-solutions/