Publishers that only publish fully open journals (the group of bars to the left) have historically charged lower APCs than their mixed-model siblings (shown on the right). However, the fully OA prices of the OA-only publishers have caught up over the last few years and are now slightly higher than the fully OA prices of mixed-model publishers. Although not shown here, our data allows us to separate out fully OA imprints (such as BioMed Central) from their parent publishers. These have followed similar trends to the prices of OA-only publishers but are slightly cheaper than their OA-only siblings.
| Research Data Curation and Management Works |
| Digital Curation and Digital Preservation Works |
| Open Access Works |
| Digital Scholarship |
