Pricing and other means of charging for scholarly journals: a literature review and commentary
(source: Learned Publishing, Volume 21, Number 4, October 2008 , pp. 248-272(25))

"There has been a clear upward trend over the past 50 years in traditional listed print subscription prices. The more recent trend towards electronic publishing has made possible new ways of charging for journals, such as differential pricing structures and bundling of journals which are purchased through license fees/charges (both of which enable libraries to buy significantly more journals, but at the same time make it more difficult to analyze prices). We are now also seeing a new emphasis on the 'author-side payment' model. This article analyzes pricing and charging policies and trends, illustrating how these are affected by the complexities of the evolving journal system."