Early citation advantage?

[Sally Morris (ALPSP)]

The reduced publisher downloads are worrying for the future viability of
journals - particularly since some repositories (e.g. PubMed Central) refuse
to provide sufficiently detailed download statistics for publishers and/or
libraries to combine with the usage on the publisher's site

Sally


Sally Morris, Chief Executive
Association of Learned and Professional Society Publishers
South House, The Street, Clapham, Worthing, West Sussex BN13 3UU, UK
Tel:  +44 (0)1903 871 686
Fax:  +44 (0)1903 871 457
Email:  sally.morris at alpsp.org
----- Original Message -----
From: "Phil Davis" <pmd8 at CORNELL.EDU>
To: <SIGMETRICS at LISTSERV.UTK.EDU>
Sent: Tuesday, June 27, 2006 5:07 PM
Subject: Re: [SIGMETRICS] Early citation advantage?


> Adminstrative info for SIGMETRICS (for example unsubscribe):
> http://web.utk.edu/~gwhitney/sigmetrics.html
>
> In our study of math articles deposited in the arXiv, we could not detect
> an Early View advantage.  Mathematics articles have very long citation
> half-lives and don't get cited nearly as often as biomedical articles, so
> the effect may be there, but just not detectable in our dataset.  There
> were stronger explanatory variables to explain the citation advantage.
> See:
>
> Does the arXiv lead to higher citations and reduced publisher downloads
> for
> mathematics articles?
> Philip M. Davis and Michael J. Fromerth
> Scientometrics (2007 forthcoming) http://arxiv.org/pdf/cs.DL/0603056
>
> An analysis of 2,765 articles published in four math journals from 1997 to
> 2005 indicated that articles deposited in the arXiv received 35% more
> citations on average than non-deposited articles (an advantage of about
> 1.1
> citations per article), and that this difference was most pronounced for
> highly-cited articles. The most plausible explanation is not Open Access
> or
> Early View, but Self-Selection, which has led to higher quality articles
> being deposited in the arXiv. Yet in spite of their citation advantage,
> arXiv-deposited articles received 23% fewer downloads from the publisher's
> website (about 10 fewer downloads per article) in all but the most recent
> two years after publication. The data suggest that arXiv and the
> publisher's website may be fulfilling distinct functional needs of the
> reader.
>
> --Phil Davis
>
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