Lexicographic answering in travel choice: Insufficient scale extensions and steep indifference curves?

to one specific attribute stated that this attribute was decisive in their choice compared to the share trading-off attribute levels in choices. Furthermore, a large majority of those answering lexicographically stated that the difference between the highest and lowest values of the attribute, according to which they chose lexicographically, was "very important". Relevant variables explained lexicographic answering in a logistic regression analysis, e.g. that the probability of lexicographic answering with respect to travel time increases with income and travel distance.Response strategies other than neo-classical trade-off, e.g. simplification with a focus on one attribute alone, cannot be ruled out. However, the results indicate that lexicographic answering is due primarily to steep indifference curves in combination with insufficient attribute scale extension. These findings have implications for choice design and for the treatment of respondents answering lexicographically.(A)

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01050640
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jun 4 2007 11:47PM