Discrete choice experiments are not conjoint analysis
We briefly review and discuss traditional conjoint analysis (CA) and discrete choice experiments (DCEs), widely used stated preference elicitation methods in several disciplines. We pay particular attention to the origins and basis of CA, and show that it is generally inconsistent with economic dema...
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Published in | Journal of choice modelling Vol. 3; no. 3; pp. 57 - 72 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Leeds
University of Leeds, Institute for Transport Studies
2010
Elsevier Ltd |
Subjects | |
Online Access | Get full text |
ISSN | 1755-5345 1755-5345 |
DOI | 10.1016/S1755-5345(13)70014-9 |
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Summary: | We briefly review and discuss traditional conjoint analysis (CA) and discrete choice experiments (DCEs), widely used stated preference elicitation methods in several disciplines. We pay particular attention to the origins and basis of CA, and show that it is generally inconsistent with economic demand theory, and is subject to several logical inconsistencies that make it unsuitable for use in applied economics, particularly welfare and policy assessment. We contrast this with DCEs that have a long-standing, well-tested theoretical basis in random utility theory, and we show why and how DCEs are more general and consistent with economic demand theory. Perhaps the major message, though, is that many studies that claim to be doing conjoint analysis are really doing DCE. |
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ISSN: | 1755-5345 1755-5345 |
DOI: | 10.1016/S1755-5345(13)70014-9 |