Share equations play an important role in applied economic research, notably in marketing and demand analysis. Both market shares and budget shares have been used as dependent variables in econometric models which were partly motivated by microeconomic theory. However attempts of econometricians...

Discrete choice models and qualitative response models are intimately related. Usually both are based on a logistic specification. In many applications the two approaches have been combined leading to a 'discrete choice model including socio-economic explanatory variables'. The paper desdribes...

The paper reports on an attempt to analyse individual travelling behaviour by discrete choice models. It shows that among the socio-economic variables 'income (of household)' is the variable which influences the decision whether a trip is taken at all whereas 'age' seems to be the most important...