TY - GEN

T1 - Development and estimation of a semi-compensatory model with flexible error structure

A1 - Kaplan,Sigal

A1 - Shiftan,Yoram

A1 - Bekhor,Shlomo

AU - Kaplan,Sigal

AU - Shiftan,Yoram

AU - Bekhor,Shlomo

PB - The International Association for Travel Behaviour Research

PY - 2009

Y1 - 2009

N2 - Semi-compensatory models show promise in representing two-stage choice processes by integrating choice set formation within discrete choice models. However, they are subject to simplifying assumptions that limit their application. The current study proposes a novel semi-compensatory model that alleviates these simplifying assumptions concerning (i) the number of alternatives, (ii) the representation of choice set formation, and (iii) the error structure. The proposed semi-compensatory model represents a sequence of choice set formation based on the conjunctive heuristic with correlated thresholds, and utility-based choice accommodating alternatively nested substitution patterns across the alternatives and random taste variation across the population. The proposed model is applied to off-campus rental apartment choice of students. Results show (i) the estimated model for a universal realm of 200 alternatives and 41 choice sets, (ii) the threshold representation as a function of individual characteristics, and (iii) the feasibility and importance of introducing a flexible error structure into semi-compensatory models.

AB - Semi-compensatory models show promise in representing two-stage choice processes by integrating choice set formation within discrete choice models. However, they are subject to simplifying assumptions that limit their application. The current study proposes a novel semi-compensatory model that alleviates these simplifying assumptions concerning (i) the number of alternatives, (ii) the representation of choice set formation, and (iii) the error structure. The proposed semi-compensatory model represents a sequence of choice set formation based on the conjunctive heuristic with correlated thresholds, and utility-based choice accommodating alternatively nested substitution patterns across the alternatives and random taste variation across the population. The proposed model is applied to off-campus rental apartment choice of students. Results show (i) the estimated model for a universal realm of 200 alternatives and 41 choice sets, (ii) the threshold representation as a function of individual characteristics, and (iii) the feasibility and importance of introducing a flexible error structure into semi-compensatory models.

BT - Proceedings of the 12th International Conference on Travel Behavior Research

T2 - Proceedings of the 12th International Conference on Travel Behavior Research

ER -