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Contingent valuation with an open‐ended follow‐up question: a test of scope effects
Author(s) -
Kartman Bernt,
Stålhammar NilsOlov,
Johannesson Magnus
Publication year - 1997
Publication title -
health economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.55
H-Index - 109
eISSN - 1099-1050
pISSN - 1057-9230
DOI - 10.1002/(sici)1099-1050(199711)6:6<637::aid-hec314>3.0.co;2-v
Subject(s) - contingent valuation , valuation (finance) , scope (computer science) , actuarial science , economics , closed ended question , microeconomics , willingness to pay , accounting , computer science , statistics , mathematics , programming language
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. © 1997 John Wiley & Sons, Ltd.