OECD has released Enquiries Into Intellectual Property's Economic Impact.
Here's an excerpt from "Chapter 7: Legal Aspects of Open Access to Publicly Funded Research":
To explain the interplay between open access and IP laws, this chapter provides an overview of the IP regimes that protect research outputs in a sample of OECD jurisdictions. It then reviews the open access policies that are in place in some of those jurisdictions and examines two contexts in which IP questions can arise when open access principles are applied: public/private partnerships and text and data mining.
Also of interest: "Chapter 5: Copyright in the Digital Era: Country Studies."