petersuber, New study: At least in the #UAE, there is a "statistically significant…positive relationship between a higher number of coauthors (in particular international) and the #OpenAccess status of articles."
https://direct.mit.edu/qss/article/doi/10.1162/qss_a_00256/115688/Open-access-and-international-coauthorship-Ah/t @mikaellaakso