JISC has released Benefits of Open Access to Scholarly Research to the Public Sector.
Here's an excerpt:
The total cost to the public sector of accessing journal papers is around £135 million per annum. The savings that accrue from the availability of Open Access articles (using both Green and Gold routes) amount to £28.6 million (£26 million in access fees and £2.6 million in time savings).
Extending the number or articles available through Open Access further increases the potential for savings. Each extra 5% of journal papers accessed via Open Access would save the public sector £1.7 million, even if no subscription fees were to be saved. Increasing the number of journal papers accessed through Open Access to 25% would save the public sector an extra £29 million.
| Transforming Scholarly Publishing through Open Access: A Bibliography: "This work gives an outstanding overview of scholarship relating to the growing Open Access movement." — George Machovec, The Charleston Advisor 12, no. 2 (2010): 3. | Digital Scholarship |