TY - JOUR
T1 - Error distributions assumptions in random regret choice models
T2 - towards error frechit specifications
AU - Jang, Sunghoon
AU - Rasouli, Soora
AU - Timmermans, Harry
PY - 2020/3/16
Y1 - 2020/3/16
N2 - Recently introduced regret-based choice models in transportation research have mainly adopted the assumption of identically and independently distributed unobserved regrets. The central argument underlying this paper is that this assumption is difficult to defend considering the fundamental nature of the concept of regret, which states that regret is generated through the comparison of choice alternatives on an attribute-by-attribute basis. To support this stance, we identify and diagnose specification errors in classic regret-based choice models, and provide an alternative specification. Results show that relaxing the assumption of identically and independently distributed error terms and applying the proposed error components Frechit structure leads to a substantial improvement in model performance of the regret-based models for the data used.
AB - Recently introduced regret-based choice models in transportation research have mainly adopted the assumption of identically and independently distributed unobserved regrets. The central argument underlying this paper is that this assumption is difficult to defend considering the fundamental nature of the concept of regret, which states that regret is generated through the comparison of choice alternatives on an attribute-by-attribute basis. To support this stance, we identify and diagnose specification errors in classic regret-based choice models, and provide an alternative specification. Results show that relaxing the assumption of identically and independently distributed error terms and applying the proposed error components Frechit structure leads to a substantial improvement in model performance of the regret-based models for the data used.
KW - Frechit model
KW - Regret-based choice models
KW - error components structure
UR - http://www.scopus.com/inward/record.url?scp=85081038410&partnerID=8YFLogxK
U2 - 10.1080/23249935.2020.1720855
DO - 10.1080/23249935.2020.1720855
M3 - Article
VL - 16
SP - 1250
EP - 1268
JO - Transportmetrica A: Transport Science
JF - Transportmetrica A: Transport Science
SN - 2324-9935
IS - 3
ER -