Table 2. Main scientific papers that have investigated and quantified the citation advantage as well as its origin.
| R eference | D iscipline | C itation advantage | O rigin |
|---|---|---|---|
| Antelman (2004) | Mathematics, Electrical Engineering, Political
Science, Philosophy |
+91%, +51%, +86%, +45%
per discipline respectively |
NA |
| Atchison & Bull (2015) | Political Science | Statistically significant
citation advantage |
NA |
| Cheng & Ren (2008) | Medicine, Biology, Agricultural Sciences,
Chemistry and University Journals |
+200% | NA |
| Davis & Fromerth (2007) | Mathematics | +35% | Quality advantage,
no evidence of early advantage |
| Davis et al. (2008) | Physiology | -5% | NA |
| Davis (2011) | Sciences, Social Sciences, and Humanities | +1% but statistically
indistinguishable |
No evidence of an early
advantage |
| Evans & Reimer (2009) | All | +8% for newly published
articles; +16% for citations from developing countries |
NA |
| Eysenbach (2006) | Natural Sciences | +210 up to +290% | NA |
| Frandsen (2009) | Biology, Mathematics, Pharmacy and
Pharmacology |
No clear tendency towards
an increase in impact |
NA |
| Gargouri et al. (2010) | Engineering, Biology, Biomedicine, Chemistry,
Psychology, Mathematics, Clinical Medicine, Health, Physics, Social Science, Earth Sciences |
+?% to ?% depending on the
discipline |
Quality advantage is
confirmed no evidence for selection bias |
| Gaule & Maystre (2011) | Biology | No evidence of citation
advantage |
NA |
| Gentil-Beccot et al. (2010) | High Energy Physics | +200% | Early advantage
confirmed |
| Hajjem et al. (2006) | Biology, Psychology, Sociology, Health, Political
Science, Economics, Education, Law, Business, Management |
+36% to 172% | NA |
| Harnad & Brody (2004) | Physics | +250% to 580% | NA |
| Henneken et al. (2006) | Astronomy and Physics | +200% | NA |
| Kousha & Abdoli (2010) | Agricultural Science | +621% but not to every
journal |
NA |
| Kurtz et al. (2005) | Astronomy | None | Selection bias and early
advantage |
| Kurtz & Henneken (2007) | Astronomy | +200% | Early advantage
confirmed |
| Lansingh & Carter (2009) | Opthalmology | No | NA |
| Lawrence (2001) | Computer Science | +157% up to +284% for top
publication |
NA |
| McCabe & Snyder (2014) | Ecology, Botany, Multidisciplinary Science and
Biology |
+8% | NA |
| McVeigh (2004) | Natural Sciences | 0-+50% in 2003 depending
on field, negative citation advantage in 2000 |
NA |
| Metcalfe (2005) | Astronomy | +200% | NA |
| Metcalfe (2006) | Solar Physics | +170% and +260%
depending on the online repository |
No evidence for
selection bias |
| Moed (2006) | Condensed Matter Physics | NA | Confirm early access
advantage and selection bias but no OA effect |
| Norris et al. (2008) | Ecology, Applied Mathematics, Sociology and
Economics |
+157% | NA |
| Sahu et al. (2005) | Medicine | +300% up to +450% | NA |
|
Schwarz & Kennicutt Jr
(2004) |
Astronomy | +200% | Early advantage |
| Vanclay (2013) | Environmental Science | Not significant | NA |
| Wang et al. (2015) | All | +111% up to 152% | NA |
|
Wohlrabe & Birkmeier
(2014) |
Economics | +35% up to 64% depending on
the database used |
NA |
| Xu et al. (2011) | Humanities, Life Sciences, Mathematics & Physical
Science, Medicine, Social Sciences |
-49.24%-+87.73% | NA |
| Zhang (2006) | Communication Studies | +200% | NA |