, Lexicographic Preferences in Discrete Choice Experiments: Consequences on Individual-Specific Willingness to Pay Estimates

Danny Campbell, George Hutchinson, Riccardo Scarpa

Research output: Contribution to specialist publicationArticle

Abstract

In discrete choice experiments respondents are generally assumed to consider all of the attributes across each of the alternatives, and to choose their most preferred. However, results in this paper indicate that many respondents employ simplified lexicographic decision-making rules, whereby they have a ranking of the attributes, but their choice of an alternative is based solely on the level of their most important attribute(s). Not accounting for these simple decision-making heuristics introduces systemic errors and leads to biased point estimates, as they are a violation of the continuity axiom and a departure from the use of compensatory decision-making. In this paper the implications of lexicographic preferences are examined. In particular, using a mixed logit specification this paper investigates the sensitivity of individual-specific willingness to pay (WTP) estimates conditional on whether lexicographic decision-making rules are accounted for in the modelling of discrete choice responses. Empirical results are obtained from a discrete choice experiment that was carried out to address the value of a number of rural landscape attributes in Ireland
Original languageEnglish
Pages1-28
Number of pages28
Volume128.06
Specialist publicationFEEM Working Paper 128.06
PublisherFEEM Fondazione Eni Enrico Mattei Research Paper
DOIs
Publication statusPublished - 25 Oct 2006

Keywords

  • Continuity axiom, Discrete Choice Experiments, Lexicographic Preferences

ASJC Scopus subject areas

  • Economics, Econometrics and Finance(all)

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