There's an interesting report of a meeting (that I was fortunate to be able to participate in) that took place following the December 2018 CNI Membership meeting. This was jointly convened by the Association of Research Libraries (ARL) and the Social Sciences Research Council (SSRC).

A summary of the report can be found at

Academy, Library Leaders Identify Actions to Promote Open Scholarship in Social Sciences — Association of Research Libraries

The Association of Research Libraries (ARL) and the Social Science Research Council (SSRC) gathered more than 30 leaders of scholarly communities, research libraries, and funding organizations in December 2018 to identify a shared agenda and collaborative actions for promoting a more equitable, open, scholarly publishing infrastructure...

A direct link to the PDF of the report

ARL-SSRC Meeting on Open Scholarship in the Social Sciences: Summary and Next Steps — Association of Research Libraries

ARL-SSRC Meeting on Open Scholarship in the Social Sciences

Clifford Lynch Director, CNI