University Institutional Repository impact on citation of journal articles

[Stevan Harnad]

On Tue, 20 Nov 2007, Chiner Arias, Alejandro wrote:

> Does article self-archiving in an Institutional Repository increase
> citation of the articles that are later published in peer-reviewed
> scholarly journals?

Yes:

     Brody, T., Harnad, S. and Carr, L. (2006) Earlier Web Usage Statistics
     as Predictors of Later Citation Impact. Journal of the American
     Association for Information Science and Technology (JASIST), 57
     (8). pp.  1060-1072. http://eprints.ecs.soton.ac.uk/10713/

See also the work of Kurtz et al, and of Moed, on the "Early Advantage,"
in the OpCit Bibliography that you cite below.

But there is an ambiguity in your question: A paper is just a paper or
preprint until it is accepted for publication, and a postprint or
article only after that. It is not clear whether your question is about
whether preprint self-archiving increases later article citations, or
whether you mean early postprint self-archiving (before the published
version is available). (In all cases, OA increases impact.)

> The literature I am trying to find should provide empirical evidence to
> answer this question and should be specifically about self-archiving in
> Institutional Repositories.

Yes, but self-archiving *what*?

> I am aware of the following bibliography and I know there are plenty of
> studies about the citation impact of Open Access in general, including
> OA journals and cross-institutional or subject repositories like arXiv.

But repositories contain both preprints and postprints.

> I am also aware of studies about the impact of OAI searchable archiving.
> All of which I find cogent and I do not need to be persuaded.
> http://opcit.eprints.org/oacitation-biblio.html
>
> Unfortunately the above is not enough for my work.  I need something
> specifically about Institutional Repositories, understood as a
> university's green OA archive for the research by its academic staff.

Again, some confusion. IRs are IRs. Inasmuch as they contain postprints,
the are green OA archives. Preprints are optional, but they too enhance
impact.

Hope this helps,

Stevan Harnad
AMERICAN SCIENTIST OPEN ACCESS FORUM:
http://amsci-forum.amsci.org/archives/American-Scientist-Open-Access-Forum.html
     http://www.ecs.soton.ac.uk/~harnad/Hypermail/Amsci/

UNIVERSITIES and RESEARCH FUNDERS:
If you have adopted or plan to adopt an policy of providing Open Access
to your own research article output, please describe your policy at:
     http://www.eprints.org/signup/sign.php
     http://openaccess.eprints.org/index.php?/archives/71-guid.html
     http://openaccess.eprints.org/index.php?/archives/136-guid.html

OPEN-ACCESS-PROVISION POLICY:
     BOAI-1 ("Green"): Publish your article in a suitable toll-access journal
     http://romeo.eprints.org/
OR
     BOAI-2 ("Gold"): Publish your article in an open-access journal if/when
     a suitable one exists.
     http://www.doaj.org/
AND
     in BOTH cases self-archive a supplementary version of your article
     in your own institutional repository.
     http://www.eprints.org/self-faq/
     http://archives.eprints.org/
     http://openaccess.eprints.org/


> Please can I ask from the list if you know of any studies along these
> lines?
>
> Many thanks for you help.
>
> Alejandro
>
> ___________________________________
> Alejandro Chiner, Service Innovation Officer,
> University of Warwick Library Research & Innovation Unit,
> Gibbet Hill Road, Coventry CV4 7AL, United Kingdom. Tel: +(44/0) 24 765
> 23251, Fax: +(44/0) 24 765 24211,
> a.chiner-arias -- warwick.ac.uk http://www.warwick.ac.uk/go/riu
> ___________________________________
>
>