“We can also use this break-out to assess what might happen if hybrid journals flipped. Assuming submissions stay constant, the currently Paid Access proportion gives us our maximum additional APC-based income. The economics of the Public Access content depend on how much the market would pay to flip the license to an open access one given the content is already free to read. Pressure to reduce subscription prices (and even flip to OA) could be determined by adding the open and public access components, as neither require subscriptions. At a little over 20%, this is not insignificant….
Perhaps the most surprising finding in content outside fully OA journals, is that journals with no OA option make proportionally more content Open Access and Public Access than their hybrid counterparts….
Literature search strategies focus on finding articles, and so looking at per-article access options is useful and relevant for researchers. Here we see that the proportion of content that is Open Access and Public Access is growing, although the growth appears to be slowing….
Across the market as a whole, it seems that you are LESS likely to find OA content in a hybrid journal which offers OA options, than in a journal with no advertised OA options at all.”