While a recent article by Serghio et al. (2021, p. 8) indicates that the growing adoption of Open Access in biomedical sciences has significantly contributed to increasing the degree of conflict-of-interest and funding disclosures with respect to scholarly article publication, this seems to be the case for open data to a significantly smaller extent. In contrast, research protocol registration and code sharing arrangements seem to have made minor inroads only in the publication of biomedical research results. These contrasting results, such as the growth in the share of articles that disclose conflict-of-interest and funding information, e.g., from around 52% and 63% respectively in 2010 to circa 88% and 85% in 2020, as opposed to an increase in data sharing from around 6% in 2010 to approximately 12% in 2020 (Serghio et al., 2021, p. 8), may be stemming from the need to manage the author-facing payments that Open Access models involve, which inherently promotes funding-related transparency.
Serghiou, S., Contopoulos-Ioannidis, D. G., Boyack, K. W., Riedel, N., Wallach, J. D., & Ioannidis, J. P. (2021). Assessment of transparency indicators across the biomedical literature: how open is open?. PLoS biology, 19(3), e3001107.