Doctoral thesis

Modelling freight transport demand and reference dependent choice behaviour


102 p

Thèse de doctorat: Università della Svizzera italiana, 2010 (jury note: Summa cum laude)

English The thesis focuses on discrete choice models for freight transport demand with a particular emphasis on the estimation of willingness to pay (WTP) and willingness to accept (WTA) measures. In order to cope with the research objective, I extend the classic discrete choice model specifications towards the frontier of the current literature on asymmetric model specifications in stated choice experiments with a reference pivoted design. The research is divided into four chapters, each one corresponding to a paper submitted to a refereed journal. The focus of the first paper is to model the freight transport demand according to classical mixed logit model specifications and to integrate the model estimates, such as willingness to pay measures, in a cost- benefit analysis tool. The second paper investigates loss aversion and diminishing sensitivity, and analyzes their implications on willingness to pay and willingness to accept measures in a reference pivoted choice experiment in a freight transport framework. The third paper focuses on individual reactions, in a freight choice context, to a negative change in the reference alternative values, identifying the behavioural implications in terms of loss aversion and diminishing sensitivity. Finally, the fourth paper proposes a comparison of willingness to pay and willingness to accept measures estimated from models with both symmetric and reference dependent utility specifications within two different freight transport stated choice experiments.
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