Highlights We examine certainty of choices with respect to automobiles. There is a high degree of idiosyncratic error in the choice of vehicles. Certainty about choices is a key determinant of idiosyncratic error. Method used to account for response certainty significantly effects results. More rigorous investigation of response certainty calibration is required.

    Abstract Recently emerging in the stated preference literature as methods for better representing behaviour are choice certainty calibration and alternative acceptability. This paper finds that the amount of idiosyncratic error in the context of automobile choice is significant and can be explained by choice task certainty; which is a function of several respondent characteristics. However, it also finds that no theoretical framework exists for how these techniques should be applied and that econometric differences may be responsible for improvements in model fit, rather than better behavioural representation. Raising several questions about certainty indexing, researchers are advised to apply such methods cautiously.


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    Titel :

    Consistently inconsistent: The role of certainty, acceptability and scale in choice


    Beteiligte:
    Beck, Matthew J. (Autor:in) / Rose, John M. (Autor:in) / Hensher, David A. (Autor:in)


    Erscheinungsdatum :

    2013-01-01


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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