The Reliability of Willingness to Pay for Changes in Health Status

Smith, R; (2004) The Reliability of Willingness to Pay for Changes in Health Status. Applied health economics and health policy, 3 (1). pp. 35-8. ISSN 1175-5652 DOI:

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One of the most common means to test for the temporal reliability of willingness-to-pay (WTP) values is the 'test-retest' method. However, few such tests have been conducted in healthcare, and the few that are focus on specific patient or professional groups, limiting their generalisability. In this article, a test-retest analysis of WTP for changes in health status from a general population sample found good reliability overall, with the level of reliability increasing with the overall amount of WTP and/or level of WTP as a proportion of income. The possible implications for the design and use of WTP studies in healthcare are outlined.

Item Type: Article
Faculty and Department: Faculty of Public Health and Policy
Research Centre: Centre for Global Non-Communicable Diseases (NCDs)
PubMed ID: 15702938


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