Incorporating Discontinuous Preferences into the Analysis of Discrete Choice Experiments |
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Authors: | Danny Campbell W George Hutchinson Riccardo Scarpa |
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Institution: | (1) Gibson Institute for Land, Food and Environment, Queen’s University, Belfast, BT9 5AG, Northern Ireland, UK;(2) Economics Department, Waikato Management School, University of Waikato, Hamilton, New Zealand |
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Abstract: | Data from a discrete choice experiment on improvements of rural landscape attributes are used to investigate the implications
of discontinuous preferences on willingness to pay estimates. Using a multinomial error component logit model, we explore
differences in scale and unexplained variance between respondents with discontinuous and continuous preferences and condition
taste intensities on whether or not each attribute was considered by the respondent during the evaluation of alternatives.
Results suggest that significant improvements in model performance can be achieved when discontinuous preferences are accommodated
in the econometric specification, and that the magnitude and robustness of the willingness to pay estimates are sensitive
to discontinuous preferences. |
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Keywords: | Discontinuous preferences Discrete choice experiments Multinomial error component logit model Rural environmental landscapes Willingness to pay |
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