Thresholds and indifference in stated choice surveys

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dc.contributor.authorCantillo, Victor
dc.contributor.authorAmaya, Johanna
dc.contributor.authorOrtuzar, J. de D.
dc.date.accessioned2024-01-10T12:10:08Z
dc.date.available2024-01-10T12:10:08Z
dc.date.issued2010
dc.description.abstractOne typical aim of choice experiment designs is utility balance, that is, the alternatives defined within each choice set should have similar choice probabilities; otherwise, choice is too easy and little information about preferences may be obtained. Therefore, in a good design respondents may often find themselves close to indifference and thus perception thresholds may be an issue. We propose a discrete choice model to examine the behaviour of individuals with indifference thresholds, i.e. that would make them perceive two or more alternatives as almost identical in stated choice (SC) experiments. Such thresholds may be stochastic, differ among the population and even be a function of socio-economic characteristics and choice conditions. Two estimate this model we need SC data including an "indifference option", so that respondents are not forced to choose when finding that the two alternatives are equally attractive. Our formulation allows estimating the parameters of a threshold probability distribution using information about choices. As an illustration, the model is applied both to synthetic and real data; results clearly show that when indifference thresholds exist, using models without them can lead to errors in estimation and prediction. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.funderColciencias and the Colombian Transport Ministry
dc.description.funderChilean National Fund for Scientific and Technological Research (FONDECYT)
dc.description.funderMillennium Institute on Complex Engineering Systems
dc.fechaingreso.objetodigital11-04-2024
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.trb.2009.12.003
dc.identifier.eissn1879-2367
dc.identifier.issn0191-2615
dc.identifier.urihttps://doi.org/10.1016/j.trb.2009.12.003
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76552
dc.identifier.wosidWOS:000278601100004
dc.information.autorucIngeniería;Ortúzar J. de D;S/I;99241
dc.issue.numero6
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final763
dc.pagina.inicio753
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaTRANSPORTATION RESEARCH PART B-METHODOLOGICAL
dc.rightsacceso restringido
dc.subjectDiscrete choice models
dc.subjectThresholds
dc.subjectSC survey
dc.subjectModelling indifference
dc.subjectWILLINGNESS-TO-PAY
dc.subjectINCORPORATING THRESHOLDS
dc.subjectMODEL
dc.subjectPREFERENCE
dc.subjectDESIGN
dc.titleThresholds and indifference in stated choice surveys
dc.typeartículo
dc.volumen44
sipa.codpersvinculados99241
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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