A pretty thorough treatment of this topic
is in the book The economics of access
versus ownership : the costs and benefits of access to scholarly articles via
interlibrary loan and journal subscriptions / Kingma, Bruce R.;
Irving, Suzanne (New York : Haworth Press, 1996).
The cost estimates are all way out of
date, but the methodology remains sound.
Steve Black
Reference, Serials, and Instruction
Librarian
Neil Hellman Library
The
(518) 458-5494