The Community-led Open Publication Infrastructures for Monographs project (COPIM) has released this major report analysing the open access (OA) economic models in use today in scholarly publishing. The report builds on a decade of studies written by OA advocates and consultants around the world, and updates that research to describe the environment and economics of...

This paper analyses the pros and cons of different models, and concludes with some suggestions for ways of bringing greater stability and sustainability to Open Access publishing models.