Validity and Reliability of Willingness-to-Pay Estimates: Evidence from Two Overlapping Discrete-Choice Experiments

Harry Telser (), Karolin Becker () and Peter Zweifel ()
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Harry Telser: Socioeconomic Institute, University of Zurich
Karolin Becker: Plaut Economics, Olten
Peter Zweifel: Socioeconomic Institute, University of Zurich

No 412, SOI - Working Papers from Socioeconomic Institute - University of Zurich

Abstract: Discrete-choice experiments, while becoming increasingly popular, have rarely been tested for validity and reliability. This contribution purports to provide some evidence of a rather unique type. Two surveys designed to measure willingness-to-accept (WTA) for reform op-tions in Swiss health care and health insurance are used to provide independent information with regard to two elements of reform. The issue to be addressed is whether WTA values converge although the three overlapping attributes (a more restrictive drug benefit, a delayed access to medical innovation, and a change in the monthly insurance premium) are embedded in widely differing choice sets. Experiment A contains rather radical health system reform options, while experiment B concentrates on more familiar elements such as copayment and the benefit catalogue. While mean WTA values differ between experiments, they tend to vary in similar ways, suggesting at least theoretical validity and reliability.

Keywords: willingness-to-pay; discrete choice experiments; validity; reliability; framing effects (search for similar items in EconPapers)
JEL-codes: C35 C93 I11 (search for similar items in EconPapers)
Pages: 27 pages
Date: 2004-09, Revised 2008-03
New Economics Papers: this item is included in nep-dcm, nep-exp and nep-ias
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Published in The Patient 1(4), 2008, pp. 283-298

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https://www.econ.uzh.ch/apps/workingpapers/wp/wp0412.pdf Revised version, 2008 (application/pdf)

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Persistent link: https://EconPapers.repec.org/RePEc:soz:wpaper:0412

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