I quote from a "How to DCE" for the World Bank and WHO
To estimate trade-offs, a continuous attribute must be included in the DCE. Within the job choice literature, this continuous variable is commonly salary. Inclusion of this attribute allows estimation of how improvements in aspects of a job, such as housing and education opportunities, can compensate for lower wages - that is, how much salary an individual would be willing to give up for improvements in others attributes of a job
DCE
A. Can only say what is most preferred within an attribute (Gender: Man VS Woman).
B. Can find what attributes are most important (Gender more important than Religion with ... much percent..)
Which is right without continuous?
Does a continuous only give WTP sort of ?