This document summarizes the findings of a pilot international survey of scientific authors conducted by the OECD. It finds that:
1) Approximately 55% of documents published in 2011 were openly available in 2015, with repository-based open access being more important in developed countries than publisher open access.
2) Authors were willing to pay for open access publishing, but the amount they were willing to pay declined as the proposed fee increased, showing evidence of pricing sensitivity.
3) Open access was found to facilitate greater diffusion of research, especially among non-scientific communities, though it did not consistently correlate with increased citations in major scientific indices.
4) The survey results provided evidence that female corresponding authors face an implied