Citation

Bhat C. Transp. Res. Rec. 1994; 1443: 45-53.

Copyright

(Copyright © 1994, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

A method to impute a continuous value for household income from grouped and missing income data for use as an explanatory variable in travel demand estimation was developed. Many data sets collect income in a discrete number of categories or in grouped form to simplify the respondent's task and to encourage a response. In spite of such grouped data collection, many respondents refuse to provide information on income, leading to missing income values. The issue of constructing a continuous measure of income from grouped and missing income data that, when used in travel demand models as an explanatory variable, enables consistent estimation of the model parameters, is addressed.

Language: en