Allocating costs in a consortial environment: a methodology for library consortia

Reports on the Illinois Library Computer Systems Organization (ILCSO) assessment methodology task force’s work in determining their assessment formulae for the decade covering ten fiscal years, 1988‐1999. The article includes the rationale ILCSO used for membership assessments, assessment totals by fiscal year, assessment methodologies by fiscal year, new member assessments and an appendix detailing the cost allocation methodologies used by 21 other consortia.