TY - JOUR
T1 - Identifying and analysing dominant preferences in discrete choice experiments
T2 - an application in health care
AU - Scott, Anthony
N1 - Funding Information:
Many of the ideas in this paper arose from work on conjoint analysis in HERU and so the author is indebted to discussions with Mandy Ryan, Andy Lloyd, Shelley Farrar, Emma McIntosh, Fernando San Miguel and Sandra Vick. The out of hours study was funded by the NHS R&D Primary Secondary Interface Programme. This study would not have possible without the contributions of Stuart Watson and Sue Ross. Thanks also to Nicola Torrance for her contribution to this study. The Health Economics Research Unit is funded by the Chief Scientist Office of the Scottish Executive Department of Health. The views in this paper are, however, those of the author.
PY - 2002/6
Y1 - 2002/6
N2 - The assumption that goods are traded-off to maximise utility underpins many choice-based empirical methods used to elicit stated preferences. The aim of this paper is to test and examine the implications of this assumption in the context of a discrete choice experiment that examined stated preferences for different models of out of hours care provided by General Practitioners. The results indicated that 45% of individuals exhibited evidence of dominant preferences, a special case of a lexicographic ordering. Factors influencing the existence of dominant preferences included the complexity of the choices, but also individuals' past experiences. The analysis of dominant preferences provided important information about individuals with particularly strong preferences, and suggested different policy conclusions for this group of respondents.
AB - The assumption that goods are traded-off to maximise utility underpins many choice-based empirical methods used to elicit stated preferences. The aim of this paper is to test and examine the implications of this assumption in the context of a discrete choice experiment that examined stated preferences for different models of out of hours care provided by General Practitioners. The results indicated that 45% of individuals exhibited evidence of dominant preferences, a special case of a lexicographic ordering. Factors influencing the existence of dominant preferences included the complexity of the choices, but also individuals' past experiences. The analysis of dominant preferences provided important information about individuals with particularly strong preferences, and suggested different policy conclusions for this group of respondents.
KW - Discrete choice experiments
KW - GP out of hours care
KW - Hierarchical choice
UR - http://www.scopus.com/inward/record.url?scp=0036278589&partnerID=8YFLogxK
U2 - 10.1016/S0167-4870(02)00082-X
DO - 10.1016/S0167-4870(02)00082-X
M3 - Article
AN - SCOPUS:0036278589
SN - 0167-4870
VL - 23
SP - 383
EP - 398
JO - Journal of Economic Psychology
JF - Journal of Economic Psychology
IS - 3
ER -