U.S. Serials Price Indexes (ALCTS)
http://www.ala.org/ala/mgrps/divs/alcts/resources/collect/serials/spi.cfm
Annual indexes, with accompanying tables and analysis, measure changes in average U.S. serials prices in a historical context. --by ALCTS Library Materials Price Index Editorial Board
U.S. Serials Price Indexes
These indexes, with accompanying tables and analysis, measures changes in average U.S. serials prices in a historical context. This information is useful to librarians who must prepare annual budget requests for serials, as well as those involved in analyzing serials pricing trends over a period of years.