Contingent valuation with an open-ended follow-up question: a test of scope effects

✍ Scribed by Bernt Kartman; Nils-Olov Stålhammar; Magnus Johannesson

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 44 KB
• Volume: 6
• Category: Article
• ISSN: 1057-9230
• DOI: 10.1002/(sici)1099-1050(199711)6:6<637::aid-hec314>3.0.co;2-v

✦ Synopsis

It has been suggested that an open-ended follow-up question should be added to the binary contingent valuation question. Before this is generally recommended, it is important to evaluate the properties of such follow-up questions. Using a split sample approach, we test whether the open-ended follow-up is sensitive to the scope of the commodity being valued. No significant scope effects were detected. It is concluded that the results obtained do not support the use of an open-ended follow-up in contingent valuation applications.