This report shares the findings and lessons learned from an investigation into the economics of disaggregated models for assessing and accrediting informal learners undertaking post secondary education. It presents some key economic and governance challenges for universities to consider in implementing OER assessment and accreditation policies. It also includes discussion of findings from a small-scale survey conducted by two of the authors on perceptions, practices and policies relating to openness in assessment and accreditation in post secondary institutions, with a particular focus on the "OER universitas" (OERu) concept. [This paper was presented at the OpenCourseWare Consortium Global Conference (Ljubljana, Slovenia, April 23-25, 2014).]