| 1. |
- Boman, Mattias, et al.
(författare)
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Pick a number, but not just any number: valuation uncertainty and maximum willingness to pay
- 2017
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Ingår i: Journal of Environmental Economics and Policy. - : Informa UK Limited. - 2160-6544 .- 2160-6552. ; 6, s. 283-304
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Tidskriftsartikel (refereegranskat)abstract
- Empirical results suggest that contingent valuation method (CVM) respondents are uncertain of their valuations, which has led critics of the method to raise issues about its validity. Alternative approaches to resolve the problem have been proposed, involving different willingness to pay (WTP) response formats allowing respondents to explicitly express uncertainty. This paper compares differences between certain and uncertain responses for four different response formats. The results suggested that mean and median (WTP) were not significantly different for respondents who were certain about their valuations. This was generally not the case for respondents who were uncertain about their valuations. However, the median WTP was not found to be significantly different for uncertain and certain respondents. A conclusion for a standard CVM application is that the sample median WTP value could serve as a proxy measure of population maximum mean WTP when uncertainty has been removed.
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| 2. |
- Ellingson, Lindsey, et al.
(författare)
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Perceived health state and willingness to pay for outdoor recreation: an analysis of forest recreationists and hunters
- 2016
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Ingår i: Scandinavian Journal of Forest Research. - : Informa UK Limited. - 0282-7581 .- 1651-1891. ; 31, s. 611-617
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Tidskriftsartikel (refereegranskat)abstract
- Outdoor recreation encompasses an array of activities carried out in a multitude of envrionments, including forests. An important motive for participating is the possible mental and physical health benefits gained. Currently, there is an absence of studies which have examined the economic aspects of the health effects from outdoor recreation. The main aim of this study was Ito use the contingent valuation method to compare the willingness to pay (WTP) for avoiding a hypothetical suspension of outdoor recreation among forest recreationists and hunters in Sweden. The second aim was to analyze the determinants of this WTP change, with emphasis on perceived health states obtained by means of a visual analogue scale. The results showed that changes in health state due to participation as well as visiting frequency were significant predictors of WTP. These findings suggest that health state measures may be useful for assessing health outcomes of outdoor recreation and associated WTP
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| 3. |
- Ezebilo, Eugene Ejike, et al.
(författare)
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Preferences and willingness to pay for close to home nature for outdoor recreation in Sweden
- 2015
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Ingår i: Journal of Environmental Planning and Management. - : Informa UK Limited. - 0964-0568 .- 1360-0559. ; 58, s. 283-296
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Tidskriftsartikel (refereegranskat)abstract
- In Sweden there is a strong tradition of using nature areas for outdoor recreation. This paper reports on a study which explored preferences and willingness to pay for outdoor recreation close to home (<= 100km away from home and <= 24hours stay at a recreation site) using the contingent valuation method. The data originated from a mail survey that involved Swedish residents who were randomly selected from a national register. An ordinary least squares regression model was used to account for factors influencing willingness to pay. The results showed that approximately 50% of the respondents used nature areas close to their home for recreation and their average frequency of visits to these areas was 74times annually. Areas dominated by forests were the most preferred, followed by water. The respondents were willing to pay approximately 7200 SEK (US$1080) annually. Their willingness to pay was influenced by factors such as type of nature area, distance to and time spent at the recreation site and income. The results provide one input to the land use planning process by considering the demand for nature-based outdoor recreation close to home.
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| 4. |
- Filyushkina, Anna, et al.
(författare)
-
Applying the Delphi method to assess impacts of forest management on biodiversity and habitat preservation
- 2018
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Ingår i: Forest Ecology and Management. - : Elsevier BV. - 0378-1127 .- 1872-7042. ; 409, s. 179-189
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Tidskriftsartikel (refereegranskat)abstract
- This study applied a structured expert elicitation technique, the Delphi method, to identify the impacts of five forest management alternatives and several forest characteristics on the preservation of biodiversity and habitats in the boreal zone of the Nordic countries. The panel of experts consisted of a number of scientists in the field. The data was collected using a semi-structured questionnaire distributed via e-mail in two rounds. Our findings demonstrated that an increase in management intensity for timber production is likely to have a negative effect on the biodiversity and habitats with intense management alternatives such as a "clear-cutting system" resulting in the strongest adverse impact. The presence of deadwood, mixture of trees of different sizes and increase in stand age were expected to promote preservation of biodiversity and habitats. However, there was little agreement between experts regarding the functional form that relationships between preservation of biodiversity and forest characteristics take. The Delphi method was found useful in investigating the existing knowledge base and capable of contributing to a more comprehensive assessment for decision support as a valuable addition to on-going empirical and modeling efforts. The findings could assist forest managers in developing forest management strategies that generate benefits from timber production while taking into account the trade-offs with biodiversity goals.
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| 5. |
- Filyushkina, Anna, et al.
(författare)
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Non-market forest ecosystem services and decision support in Nordic countries
- 2016
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Ingår i: Scandinavian Journal of Forest Research. - : Informa UK Limited. - 0282-7581 .- 1651-1891. ; 31, s. 99-110
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Tidskriftsartikel (refereegranskat)abstract
- The need to integrate non-market ecosystem services into decision-making is widely acknowledged. Despite the exponentially growing body of literature, trade-offs between services are still poorly understood. We conducted a systematic review of published literature in the Nordic countries (Denmark, Norway, Sweden and Finland) on the integration of non-market forest ecosystem services into decision-making. The aim of the review was two-fold: (1) to provide an overview of coverage of biophysical and socio-economic assessments of non-market ecosystem services in relation to forest management; (2) to determine the extent of the integration of biophysical and socio-economic models of these services into decision support models. Our findings reveal the need for wider coverage of non-market ecosystem services and evidence-based modelling of how forest management regimes affect ecosystem services. Furthermore, temporal and spatial modelling of ecosystem impacts remains a challenge. We observed a few examples of multiple non-market services assessments. Integration of non-market services into decision support was performed with either biophysical or socio-economic models, often using proxies and composite indicators. The review reveals that there is scope for more comprehensive and integrated model development, including multiple ecosystem services and appropriate handling of forest management impacts.
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| 6. |
- Hallquist, Mattias, 1969, et al.
(författare)
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Photochemical smog in China: scientific challenges and implications for air-quality policies
- 2016
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Ingår i: National Science Review. - : Oxford University Press (OUP). - 2095-5138 .- 2053-714X. ; 3:4, s. 401-403
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Tidskriftsartikel (refereegranskat)abstract
- In large areas of China severe air pollution events pose a significant threat to human health, ecosystems and climate. Current reduction of primary emissions will also affect secondary pollutants such as ozone (O3) and particulate matter (PM), but the magnitude of the effects is uncertain. Major scientific challenges are related to the formation of O3 and secondary particulate matter including Secondary Organic Aerosols (SOA). Large uncertainties also remain regarding the interactions of soot, SOA and O3 under the influence of different SO2, NOX and VOC concentrations. To improve the understanding of these secondary atmospheric interactions in China, scientific areas of central importance for photochemically induced air pollutants have been identified. In addition to the scientific challenges, results from research need to be synthesized across several disciplines and communicated to stakeholders affected by air pollution and to policy makers responsible for developing abatement strategies. Development of these science-policy interactions can benefit from experience gained under the UN ECE Convention on Long Range Transboundary Air Pollution (LRTAP)
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| 7. |
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