Journal Prices, Book Acquisitions, and Sustainable College Library Collections (pdf)
(source: College & Research Libraries, à paraître / via ResourceShelf, 15/06/08)

"Library collections are economically sustainable only if the rate of increase in costs is no greater than the rate of increase in the library acquisitions budget. Because book prices increase at a much lower rate than journal prices, undergraduate libraries can achieve economic sustainability through a renewed emphasis on books rather than journals. Book centered collections are consistent with the goals of many undergraduate colleges, and books rather than journals may provide the best teaching resources even in those fields that rely heavily on journals for the communication of original research results."