THE DESIGN OF STATED CHOICE EXPERIMENTS: THE STATE OF PRACTICE AND FUTURE CHALLENGES

Since the work of Louviere and Woodworth (1983) and Louviere and Hensher (1983), stated choice (SC) methods have become the dominant data paradigm in the study of behavioural responses of individuals and households as well as other organizations, in fields as diverse as marketing, transport and environmental and health economics, to name but a few. Several experimental design strategies are available to the practitioner, however, within the transport literature, it appears that the most common form of experimental design used are orthogonal fractional factorial designs. In this paper the authors review the properties of such designs, and demonstrate that these properties are unlikely to be retained through to the estimation process. The authors also discuss an alternative design construction strategy , used to construct statistically optimal designs. (a)

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