Abstract
A discrete-continuous choice model system which predicts the durations and expenditures of an individual's domestic and international travel is presented in this study. This model system is composed of two sub-models based on the assumption of random-utility maximization under income constraints. Trade-offs between travel and the other types of consumption in resource allocation are taken into consideration in these sub-models. The parameters containedin the model system are estimated using women's expenditure and travel behavior data. The results indicate that; 1) there is a strong relationship between the individual's annual expenditure for domestic travel and that for international travel, and 2) the expenditures for domestic and international travel of working women are higher that those of non-working women.Changes in travel behavior due to changes in personal and household attributes are shown by Monte Carlo simulation using the model system.
