
Open Access statistics for Amazon (United States), United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
65%
Total
Publications
11K
Total Open
Publications
7.2K
Total
Citations
196K
Open Access
Percentage
65%
Total
Publications
11K
Total Open
Publications
7.2K
Total
Citations
196K
Breakdown
Publisher Open
28%
Both
20%
Other Platform Open
13%
Closed
39%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 31%
1.4K
Hybrid 38%
1.7K
No Guarantees 31%
1.4K
Other Platform Open
Institution 59%
2K
Other Internet 31%
1.1K
Preprint 24%
809
Domain 15%
494
Public 2%
76
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
DOI | Other Internet | 1K |
arXiv | Preprint | 975 |
doaj.org OAI-PMH Repository | Institution | 917 |
LA Referencia | Institution | 915 |
PubMed Central | Domain | 476 |
aecid.es OAI-PMH Repository | Institution | 424 |
Unknown Repository | Other Internet | 172 |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 86 |
Office of Scientific and Technical Information | Institution | 83 |
Figshare | Public | 57 |