History of Over-Acquisition Three categories of monographic acquisitions –High numbers; high use –Low numbers; low use –Medium numbers; low use….
Range of 20-67 copies in I-Share Characterized by low cost per use Averaging $18.00 per use (range $12-$23) High ratio use per item 3 uses to 1 item average for all High circulation frequency (>20 for all) These are all local titles we need and want Identifying the HIGH Group
Range of 7 or fewer copies in I-Share Characterized by a HIGHER cost per use Averaging $ 35.00 per use (range $29-$42) LOW ratio use per item Mostly 2.5 to 1 overall for group LOW circulation frequency 30% of titles had 0-1 uses But these are titles we may want as research libraries Low Use: The Comet tail Copies
Range of 7 to 19 copies in I-Share Characterized by MEDIUM high cost per use Averaging $26.00 ($23 to $28) Moderate ratio use per item 2.5 to 1 Modest circulation frequency (>10) The Medium Overlap total cost is over 11 million dollars distributed over 5 years Middle Overlap
LCTL Borrowing 2007 - 2011 Lending – 2007 - 2011 Regional Totals (excluding Illinois) LCTL Lending Total Lending % of Regional Borrowing of LCTL Materials Regional % LCTL Borrowing % of Total Borrowing to Region Southern US3,76023,51515.99%23.88%19.75% North Eastern US 3,06320,75414.76%19.45%17.43% Western US2,75015,49017.75%17.46%13.01% Midwestern US 6,17459,29610.41%39.21%49.81% Total15,747119,055
CARLI Last Copies Monographs received at Illinois from CARLI members and verified as unique in state (late 2013) 2009 = 964 items 2010 = 701 items 2011 = 299 items 2012 = 996 items 2013 (so far) = 506 items Average of 740 per year….. Grand total = 3,466 items
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