Abstract
This paper focuses on ordering effects in CVM surveys; how the expressed value of a particular good valued in a sequence of several goods depends on where in the sequence the good is valued. We use data from a Norwegian CVM survey focusing on WTP for a 50% reduction in air pollution from car traffic to test for the existence of ordering effects and to apply a test for internal consistency. We found considerable and significant ordering effects in our data, but were not able to reject the hypothesis of internal consistency. Based on our survey, we argue that ordering effects may be a result of rational choice. These effects are problematic if a sequential valuation procedure is applied to a simultaneous problem, and/or the respondents are given imperfect information about the decision problem.
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Halvorsen, B. Ordering effects in contingent valuation surveys. Environmental and Resource Economics 8, 485–499 (1996). https://doi.org/10.1007/BF00357416
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DOI: https://doi.org/10.1007/BF00357416