Publication Date:
2011-11-24
Description:
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.
Keywords:
C35 - Discrete Regression and Qualitative Choice Models, I18 - Government Policy
;
Regulation
;
Public Health, Q18 - Agricultural Policy
;
Food Policy
Print ISSN:
0165-1587
Electronic ISSN:
1464-3618
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Economics
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