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Enhancing the Content Validity of Stated Preference Valuation: The Structure and Function of Ecological Indicators

  • Robert J. Johnston
  • Eric T. Schultz
  • Kathleen Segerson
  • Elena Y. Besedin
  • Mahesh Ramachandran

Stated preference surveys often provide ambiguous descriptions of ecological commodities, yielding welfare estimates that have unclear interpretations and cannot be linked to measurable outcomes. This paper proposes guidelines to promote ecological content validity in survey scenarios and defensible use of ecological information for welfare analysis. These guidelines are illustrated through an application to migratory fish restoration. Content validity is evaluated vis-á-vis norms for communication of ecological changes in the ecological literature. Findings suggest that less structured treatment of ecological commodities may lead to an omission of information that is relevant to respondents and essential for valid welfare estimation.

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File URL: http://le.uwpress.org/cgi/reprint/88/1/102
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Article provided by University of Wisconsin Press in its journal Land Economics.

Volume (Year): 88 (2012)
Issue (Month): 1 ()
Pages: 102-120

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Handle: RePEc:uwp:landec:v:88:y:2012:i:1:p:102-120
Contact details of provider: Web page: http://le.uwpress.org/

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  1. Loomis, John & Kent, Paula & Strange, Liz & Fausch, Kurt & Covich, Alan, 2000. "Measuring the total economic value of restoring ecosystem services in an impaired river basin: results from a contingent valuation survey," Ecological Economics, Elsevier, vol. 33(1), pages 103-117, April.
  2. Bateman, Ian J. & Day, Brett H. & Georgiou, Stavros & Lake, Iain, 2006. "The aggregation of environmental benefit values: Welfare measures, distance decay and total WTP," Ecological Economics, Elsevier, vol. 60(2), pages 450-460, December.
  3. Johnston, Robert J. & Weaver, Thomas F. & Smith, Lynn A. & Swallow, Stephen K., 1995. "Contingent Valuation Focus Groups: Insights From Ethnographic Interview Techniques," Agricultural and Resource Economics Review, Northeastern Agricultural and Resource Economics Association, vol. 24(1), April.
  4. Nick Hanley & Sergio Colombo & Dugald Tinch & Andrew Black & Ashar Aftab, 2006. "Estimating the benefits of water quality improvements under the Water Framework Directive: are benefits transferable?," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 33(3), pages 391-413, September.
  5. Norwood, F. Bailey & Lusk, Jayson L., 2011. "A calibrated auction-conjoint valuation method: Valuing pork and eggs produced under differing animal welfare conditions," Journal of Environmental Economics and Management, Elsevier, vol. 62(1), pages 80-94, July.
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