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- Carlsson, Fredrik, 1968, et al.
(författare)
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Assessing management options for weed control with demanders and non-demanders in a choice experiment
- 2006
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The yellow floating heart is a water weed causing nuisance problems in Swedish watercourses. An economic analysis of this is required where various management options are considered. The benefits of a management program are to a large extent recreational. Using a choice experiment we estimate the benefits of a weed management program and perform a cost-benefit analysis of different management programs. In order to be able to distinguish between those who have a demand for a program from those who do not, we introduce a way to distinguish demanders from non-demanders in the choice experiments. The advantage of our suggested approach is that we can more clearly distinguish between conditional and unconditional willingness to pay. In the empirical study we find that a share of the respondents are non-demanders. The demander willingness to pay still justifies cutting the weed in certain places in the lake, given that we use a simple cost-benefit rule.
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| 2. |
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| 3. |
- Carlsson, Fredrik, 1968, et al.
(författare)
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Do EPA administrators recommend environmental policies that citizens want?
- 2008
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- We investigate whether Swedish Environmental Protection Agency (EPA) administrator preferences regarding improvements in environmental quality differ from citizen preferences. The scope and significance of the possible difference are assessed by conducting identical choice experiments (CE) on a random sample of Swedish citizens and a random sample of administrators working at the Swedish EPA. The experiment concerns two environmental quality objectives: a Balanced Marine Environment and Clean Air. The EPA administrators were asked to choose the alternatives they would recommend as a policy, while the citizens were asked to act as private persons. We find that the rankings of attributes differ between the two groups, and that there are significant differences in the willingness to pay (WTP) for particular attributes. EPA administrators have a higher WTP for five out of the seven attributes, and in some cases the difference is not only significant but also substantial. We also asked the administrators to motivate their CE choices, and the main motive was ecological sustainability.
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| 4. |
- Carlsson, Fredrik, 1968, et al.
(författare)
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Ignoring attributes in choice experiments
- 2008
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In this paper we use follow-up questions to investigate whether attributes have been ignored in a choice experiment on environmental goods. This information is subsequently used in the estimation of the model by restricting the individual parameters for the ignored attributes to zero. We then separately estimate the marginal willingness to pay (WTP) for the whole sample and for those who took all attributes into account. We find no significant differences in mean marginal WTP between these two models. However, when taking the shares of respondents who considered both the environmental and the cost attributes (52 -69 percent of the respondents) into account, then the marginal WTPs for each attribute change if the respondents who ignored the attributes have a zero WTP. Hence, not taking into account whether respondents have considered the attribute could give biased welfare estimates and wrong policy implications. We also investigate whether any socioeconomic characteristics can explain who ignores attributes, and find that very few of the variables are significant, indicating that we can only partly explain the behavior.
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| 6. |
- Kataria, Mitesh
(författare)
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Willingness to pay for environmental improvements in hydropower regulated rivers
- 2009
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Ingår i: Energy Economics. - : Elsevier BV. - 0140-9883 .- 1873-6181. ; 31, s. 69-76
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Tidskriftsartikel (refereegranskat)abstract
- This paper uses a choice experiment to estimate how Swedish households value different environmental improvements for the hydropower regulated rivers. We obtained clear evidence that Swedish households have preferences for environmental improvement in hydropower regulated waters, at least when the cost is relatively low. Remedial measures that improve the conditions for all of the included environmental attributes i.e. fish, benthic invertebrates, river-margin vegetation and birds were found to have a significant welfare increasing impact. The results can be of value for the implementation of the Water Framework Directives in Sweden, which aims to reform the use of all surface water and ground water in the member states. (C) 2008 Elsevier B.V. All rights reserved.
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