Validité théorique de la Méthode des Choix Discrets : le cas du Traitement Hormonal substitutif de la Ménopause
Discrete Choice Experiments (DCE) consists in providing individuals with fictive scenarios in which characteristics of the good to be evaluated are varying, and asking them to indicate their preferences. Under some behavioural hypotheses, DCE allows to explain individuals’ trade-offs between those characteristics. Since Hormone Replacement Therapy (HRT) presents risks, benefits and monetary costs we aim at exploring the potentialities of DCE regarding individual preferences elicitation, by an application to HRT. In this paper, we study the theoretical validity of the method by testing standard behavioural hypotheses: internal consistency, transitivity, and stability of the preferences, no lexicographic preferences, no framing effects. Methods: Eleven pairs of scenarios were derived from the following HRT attributes: climacteric troubles, osteoporosis fractures, colorectal cancer, breast cancer, cardiac risk, thromboembolism risk, and monetary cost of the treatment. Women’s demographics and medical background were also collected. Two versions of the questionnaire were developed and randomly administered allowing to test framing effects due to the presentation of probabilities. Theoretical validity was tested by descriptive statistics. Results: 462 women aged 45 to 65 and from Lyon, France, sent back their questionnaires. Internal consistency, transitivity and stability of preferences were observed in large proportions of women (95%, 97% and 88%, respectively). Only 12% expressed lexicographic preferences. No framing effect was detected on data quality. Conclusion: since behavioural hypotheses were verified, it will now be possible to estimate a utility function and to discuss women’s preferences and willingness to pay for HRT.
|Date of creation:||Nov 2007|
|Date of revision:|
|Contact details of provider:|| Postal: 93, chemin des Mouilles - B.P.167 69131 - Ecully cedex|
Phone: 33(0)472 29 30 89
Fax: 33(0)47229 30 90
Web page: http://www.gate.cnrs.fr/
More information through EDIRC
When requesting a correction, please mention this item's handle: RePEc:gat:wpaper:0726. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Nelly Wirth)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.