The internet allows for new business models to be applied to scholarly communications.
A University of California libraries report [PDF] exploring a “value-based” pricing model for scholarly journals. From the press release: “The report is a direct outcome of the UC libraries’ collective strategic priority to advance economically balanced and sustainable scholarly communication systems. The report details UC’s rationale for value-based journal prices and modeling of prices for scholarly materials that are reasonable, transparent, and based upon the value of the material to the academic mission of the University of California.”
BioMed Central maintains a listing of article processing fees for a number of publishers and journals – both full open access and hybrid – with a focus on the biomedical field.
A special issue of the journal Economics Analysis and Policy dedicated to to economics of open access