Comparing welfare estimates from payment card contingent valuation and discrete choice experiments

Mandy Ryan, Verity Watson

Research output: Contribution to journalArticlepeer-review

120 Citations (Scopus)


This study presents the first comparison of willingness to pay estimates derived from the payment card (PC) contingent valuation and discrete choice experiment (DCE) methods. A within-sample experiment was used to elicit women's preferences for Chlamydia screening. The willingness to pay estimate derived from the DCE was larger than that derived from the PC. To investigate why the willingness to pay estimates were different, a range of validity tests were conducted. Both methods produced theoretically valid results, and there was no difference in the reported difficulty of completing the tasks. Evidence of a prominence effect was found in the PC responses. Responses to the DCE satisfied tests of non-satiation. Responses to both methods were compared with revealed preference data. There were significant differences between stated screening intention in both methods and actual screening uptake. Future work should address the external validity of stated preference methods. Copyright (C) 2008 John Wiley & Sons, Ltd.

Original languageEnglish
Pages (from-to)389-401
Number of pages13
JournalHealth Economics
Issue number4
Early online date1 Aug 2008
Publication statusPublished - Apr 2009


  • contingent valuation
  • payment card
  • discrete choice experiments
  • willingness-to-pay
  • stated preference methods


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