Figure 1
Calculated expenditure per article or theoretical average APCs on an overall project level as well as at the cluster level in 2018
Figure 2
Wiley-KEMÖ agreement: share of OA content on a global, country and consortium level
Figure 3
Springer 2019–2021 agreement, Tiers 1–4, based on institutional list-price APC values versus total institutional subscription spend from 2016 to 2018, example for each Tier