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A general treatment of ‘don't know’ responses from choice experiments

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  • Kelvin Balcombe
  • Iain Fraser

Abstract

In this paper, a modelling approach is developed for the treatment of ‘don't know’(DK) responses, within choice experiments (CEs). A DK option is motivated by the need to allow respondents the opportunity to express uncertainty. Our model explains a DK using an entropy measure of the similarity between options given to respondents within the CE. We illustrate our model by applying it to a CE examining consumer preferences for nutrient contents in food. We find that similarity between options in a given choice set does explain the tendency for respondents to report DK. , Oxford University Press.

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File URL: http://hdl.handle.net/10.1093/erae/jbr010
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Bibliographic Info

Article provided by Foundation for the European Review of Agricultural Economics in its journal European Review of Agricultural Economics.

Volume (Year): 38 (2011)
Issue (Month): 2 (June)
Pages: 171-191

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Handle: RePEc:oup:erevae:v:38:y:2011:i:2:p:171-191

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Cited by:
  1. Kragt, Marit E., 2013. "Comparing models of unobserved heterogeneity in environmental choice experiments," 2013 Conference (57th), February 5-8, 2013, Sydney, Australia 152198, Australian Agricultural and Resource Economics Society.
  2. Dekker, T. & Koster, P.R. & Brouwer, R., 2012. "Changing with the tide: Semi-parametric estimation of preference dynamics," Serie Research Memoranda 0005, VU University Amsterdam, Faculty of Economics, Business Administration and Econometrics.

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