The document analyzes usage data from an academic library's demand-driven acquisition (DDA) ebook program with EBL for fiscal years 2013 and 2014. It provides charts showing usage by subject area, publishers used, and type of usage including short-term loans, purchases from the discovery pool, and potential costs if all available titles were purchased. The library saw an increase in purchases and decrease in browsing from 2013 to 2014. Total ebook expenditures in 2014 were distributed among DDA from EBL and Ebrary, package deals, and firm orders. The document cites a presentation on making value judgments around ebook pricing models for access versus ownership.
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1. L I S A G O N Z A L E Z
E L E C T R O N I C R E S O U R C E S L I B R A R I A N
Analyzing and Evaluating a
DDA Program
May 7th, 2015
CARLI eBook Symposium
2. Usage by Subject EBL FY2013
B
2%
BF
1%
BL
6%
BM
4%
BR
7%
BS
53%
BT
6%
BV
7%
BX
9%
DS
2%
LC
1%
R
1%
Z
1%
Percentage of DDA by Call Number 2012-2013
3. Usage by Subject EBL FY2014
B
7%
BF
2%
BJ
5%
BL
9%
BM
4%
BP
1%
BR
11%
BS
36%
BT
9%
BV
4%
BX
3%
D
2%
HN
1%
K
1%
KBP
2%
LB
1%
Percentage of DDA by Call Number 2013-2014
4. Publishers Used EBL FY2013
Ashgate
3%
Baker
7%
Brill
6% Cambridge University Press
2%
Continuum
59%
Edinburgh University Press
1%
Editions Rodopi
1%
Indiana University Press
1%
Jessica Kingsley Publishers
1%
Lexington
Books
1%
Mohr
Siebeck
1%
NYU Press
1%
Oxford University
Press
1%
Palgrave Macmillan
1% Stanford
University Press
1%
Taylor
and
Francis
7%
Templeton Press
1%
Wiley
3%
Publishers Used by Patrons in DDA 2012-2013
5. Publishers Used EBL FY2014
Ashgate
3% Bloomsbury
5%
BRILL
6%
Cambridge
3%
Continuum
44%
De Gruyter
2%
Edinburgh University
1%
Fortress
5%
I.B. Tauris
2%
Marquette University
2%
Mohr Siebeck
2%
Oxford
4%
Palgrave
1%
Sage
2%
Taylor and
Francis
8%
University of Chicago
1%
Wiley
6%
Publishers Used by Patrons in DDA 2013-2014
6. DDA Usage Type EBL FY2013
1%
3%
6%
90%
DDA Usage from Discovery Pool 2012-2013
Items purchased Shortterm loans Browses Total discovery pool
7. DDA Usage Type EBL FY2014
1% 3%
4%
92%
DDA Usage from EBL Discovery Pool 2013-2014
Items purchased Short term loans Browses Total discovery pool
8. Real vs. Potential Costs - EBL FY2013
$0
$10,000
$20,000
$30,000
$40,000
$50,000
$60,000
$70,000
EBL DDA 2012-2013 Total DDA Discovery Records
AxisTitle
$4,009 vs. $71,879
Actual vs. Hypothetical EBL Expenditures 2012-2013
9. Real vs. Potential Costs EBL FY2014
$0.00
$100,000.00
$200,000.00
$300,000.00
$400,000.00
$500,000.00
$600,000.00
EBL DDA 2013-2014 Total DDA Discovery Records
Actual vs. Hypothethical EBL Expenditures 2013-2014
$6332.88 vs. $513,472.98
12. Cumulative Cost Per Use
Levine-Clark, Michael, Maria Savova, and Jason Price. Making Value
Judgments: eBook Pricing for Access and Ownership. presented at the
Electronic Resources & Libraries, Austin, Tex., February 23, 2015.
http://www.slideshare.net/MichaelLevineClark/levineclark-michael-maria-
savova-and-jason-price-making-value-judgments-ebook-pricing-for-access-
and-ownership-electronic-resources-libraries-austin-february-23-2015.