Dealing with Increased Complexity in Conjoint Experiments: Background and Overview of Alternate Approaches

This paper serves as background information for the TRB workshop on stated preference modelling. The main argument of the paper is that the development of stated preference and choice models has witnessed increased complexity, which in turn has led to higher respondent burden. The paper discusses some examples of such increased complexity and some potential solutions to reduce respondent burden. Because some of these developments and solutions are discussed in more detail in other workshop papers, the level of detail in this paper depends on the specific topic. Those topics that are not discussed in the workshops receive slightly more attention.