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Ordering effects and choice set awareness in repeat-response stated preference studies |
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| Authors: | Brett Day Ian J BatemanRichard T Carson Diane DupontJordan J Louviere Sanae MorimotoRiccardo Scarpa Paul Wang |
| Institution: | a University of East Anglia, Norwich NR4 7TJ, England, UK b University of California, San Diego, USA c Brock University, Canada d University of Technology, Sydney, Australia e Kobe University, Japan f University of Waikato, New Zealand |
| Abstract: | We present an experiment designed to investigate the presence and nature of ordering effects within repeat-response stated preference (SP) studies. Our experiment takes the form of a large sample, full-factorial, discrete choice SP exercise investigating preferences for tap water quality improvements. Our study simultaneously investigates a variety of different forms of position-dependent and precedent-dependent ordering effect in preferences for attributes and options and in response randomness. We also examine whether advanced disclosure of the choice tasks impacts on the probability of exhibiting ordering effects of those different types. We analyze our data both non-parametrically and parametrically and find robust evidence for ordering effects. We also find that the patterns of order effect in respondents' preferences are significantly changed but not eradicated by the advanced disclosure of choice tasks a finding that offers insights into the choice behaviors underpinning order effects. |
| Keywords: | Stated preference Discrete choice experiment Ordering effect Advanced disclosure |
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