Contingent Valuation Aabø, Svanhild. 2005. "Valuing the benefits of public libraries." Information Economics & Policy no. 17 (2):175-198. doi: 10.1016/j.infoecopol.2004.05.003. ———. 2005. "Are public libraries worth their price?: A contingent valuation study of Norwegian public libraries." New Library World no. 106 (11/12):487-495. doi: 10.1108/03074800510634973 Aabø, Svanhild, and Ragnar Audunson. 2002. "Rational choice and valuation of public libraries: can economic models for evaluating non-market goods be applied to public libraries?" Journal of Librarianship & Information Science no. 34 (1):5-15. doi: 10.1177/096100060203400102. Aerni, Sarah E., and Donald W. King. 2006. Contingent valuation in academic and public libraries. Paper read at ARL Assessment Conference, 2006. Baptista Melo, Luiza, and Cesaltina Pires. 2009. The Impact of the Electronic Resources in Portuguese Academic Libraries: Results of a Qualitative Survey. Paper read at QQML 2009, at Crete, Greece. Breedlove, Joseph. 1999. Natural Resources: Assessing Nonmarket Values Through Contingent Valuation. Washington, DC: National Council for Science and the Environment. Brown, Jeanne M. 2011. Developing a library value indicator for a disciplinary population. In Proceedings of the 3rd annual Library Assessment Conference: Association of Research Libraries. Carson, Richard T., Nicholas E. Flores, and Norman F. Meade. 2001. "Contingent Valuation: Controversies and Evidence." Environmental and Resource Economics no. 19 (2):173210. doi: 10.1023/A:1011128332243. Center, National Oceanic Atmospheric Association Coastal Services. Nonmarket Valuation Tools 1995. Available from http://www.csc.noaa.gov/mpass/tools_nonmarket.html. Flores, Nicholas E. 2003. "Conceptual framework for nonmarket valuation." In A primer on nonmarket valuation, edited by Patricia A. Champ, 27-57. Dordrecht: Springer Netherlands. Harless, David W., and Frank R. Allen. 1999. "Using the contingent valuation method to measure patron benefits of reference desk service in an academic library." College & Research Libraries no. 60 (1):56-69. Hausman, Jerry A. 1993. Contingent valuation : a critical assessment. Amsterdam ; New York: North-Holland. Hider, Philip. 2008. "Using the Contingent Valuation Method for Dollar Valuations of Library Services." Library Quarterly no. 78 (4):437-458. doi: 10.1086/591180. ———. 2008. "How Much are Technical Services Worth? Using the Contingent Valuation Method to Estimate the Added Value of Collection Management and Access." Library Resources & Technical Services no. 52 (4):254-262. doi: 10.1016/j.lisr.2010.09.006. Hubbard, Douglas W. 2010. How to measure anything : finding the value of "intangibles" in business. 2nd ed. Hoboken, N.J.: Wiley. 2 Hye-Kyung, Chung. 2008. "The contingent valuation method in public libraries." Journal of Librarianship & Information Science no. 40 (2):71-80. doi: 10.1177/0961000608089343. Kim, Giyeong. 2011. "A critical review of valuation studies to identify frameworks in library services." Library & Information Science Research no. 33 (2):112-119. doi: 10.1016/j.lisr.2010.09.006. King, Dennis M., and Marisa J. Mazzotta. Contingent Valuation Method 2000. Available from http://www.ecosystemvaluation.org/contingent_valuation.htm. King, Donald W. 2010. Measuring Value: 30-Years of Experience with Valuation Studies. In ARL Lib-Value: Return on Investment (ROI) for Academic Libraries Workshop. Washington DC. Koenig, Michael E. D. 1992. "The importance of information services for productivity-- underrecognized and under-invested." Special Libraries no. 83 (4):199-210. Lee, Soon-Jae, Hye-Kyung Chung, and Eun-Joo Jung. 2010. "Assessing the warm glow effect in contingent valuations for public libraries." Journal of Librarianship & Information Science no. 42 (4):236-244. doi: 10.1177/0961000610380819. Loomis, John, Thomas Brown, Beatrice Lucero, and George Peterson. 1996. "Improving Validity Experiments of Contingent Valuation Methods: Results of Efforts to Reduce the Disparity of Hypothetical and Actual Willingness to Pay." Land Economics no. 72 (4):450-461. Missingham, Roxanne. 2005. "Libraries and economic value: a review of recent studies." Performance Measurement and Metrics no. 6 (3):142-158. doi: 10.1108/14678040510636711. Morris, Anne, Margaret Hawkins, and John Sumsion. 2001. "Value of book borrowing from public libraries: user perceptions." Journal of Librarianship & Information Science no. 33 (4):191-198. doi: 10.1177/096100060103300404. Murphy, James J., P. Geoffrey Allen, Thomas H. Stevens, and Darryl Weatherhead. 2005. "A Meta-analysis of Hypothetical Bias in Stated Preference Valuation." Environmental and Resource Economics no. 30 (3):313-325. doi: 10.1007/s10640-004-3332-z. Oakleaf, Megan. 2010. The value of academic libraries: A comprehensive research review and report. Chicago: Association of College and Research Libraries. Tenopir, Carol, Donald W. King, Regina Mays, Lei Wu, and Andrea Baer. 2010. "Measuring value and return on investment of academic libraries." Serials: The Journal for the Serials Community no. 23 (3):182-190. doi: 10.1629/23182. Vij, Rajeev, and Navin Kumar S. Soni. 2011. Maximising the Value and Return on Investment (ROI) of Special Libraries: A Case Study of INMAS Library. In CALIBER 2011. Goa, India. Whynes, David, Zoe Philips, and Emma Frew. 2005. "Think of a number... any number?" Health Economics no. 14 (11):1191-1195. doi: 10.1002/hec.1001. Williams, Peter, David Nicholas, and Ian Rowlands. 2010. "E-Journal Usage and Impact in Scholarly Research: A Review of the Literature." New Review of Academic Librarianship no. 16 (2):192-207. doi: 10.1080/13614533.2010.503645.