OAPEN-UK matched pairs pilot: Final Report

"This report outlines the main findings from the OAPEN-UK matched pairs pilot. The pilot ran from September 2011 – August 2014. Five publishers submitted pairs of titles to the pilot, matched as closely as possible on a number of areas. The project team randomly selected one title from each pair to be made open access, and the other title was used as a control. Over three years, we gathered sales and usage data to try to understand what happens when you make a monograph open access. A sixth publisher joined the project in September 2013."