• Disentangling the influence of knowledge on attribute non-attendance 

      Sandorf, Erlend Dancke; Campbell, Danny; Hanley, Nick (Journal article; Tidsskriftartikkel, 2016-09-22)
      We seek to disentangle the effect of knowledge about an environmental good on respondents' propensity to ignore one or more attributes on the choice cards in a discrete choice experiment eliciting people's preferences for increased protection of cold-water corals in Norway. We hypothesize that a respondent's level of knowledge influences the degree to which she ignores attributes. Respondents ...
    • Informing management strategies for a reserve: Results from a discrete choice experiment survey 

      Bui, Bich Xuan; Sandorf, Erlend Dancke; Aanesen, Margrethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-18)
      It is well-known that operating within the boundaries of a national park provides commercial actors with the opportunity to charge a price premium, though this has to a lesser degree been demonstrated for marine protected areas. We estimate national tourists' willingness-to-pay a price premium for boat trips in the Nha Trang Bay Marine Protected Are, Vietnam, using a discrete choice experiment. Our ...
    • Stakeholder perceptions towards sustainable shrimp aquaculture in Vietnam 

      Xuan, Bui Bich; Sandorf, Erlend Dancke; Ngoc, Quach Thi Khanh (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-23)
      Aquaculture is the fastest growing food production industry globally and is considered to have the greatest potential to meet the growing demand for seafood and being a solution to overfishing. Despite the benefits of aquaculture, the rapid growth and intensification of production (so-called conventional aquaculture) has raised concerns about food safety, fish welfare, and environmental and social ...
    • Valuing Unfamiliar and Complex Ecosystem Services: The influence of survey mode, knowledge and dishonesty 

      Sandorf, Erlend Dancke (Doctoral thesis; Doktorgradsavhandling, 2016-08-15)
      Increasing demand for valuation of ecosystem services has led stated preference methods to be applied to public goods that are increasingly complex and unfamiliar. Traditionally, stated preference surveys were conducted via mail or face-to-face interviews, but over the past two decades internet panels have been used to a larger extent. As we move away from traditional methods of survey administration ...
    • Willingness to adopt improved shrimp aquaculture practices in Vietnam 

      Ngoc, Quach Thi Khanh; Bui, Bich Xuân; Sandorf, Erlend Dancke; Phong, Truong Ngoc; Trung, Luong Cong; Hien, Tang Thi (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-05)
      The shrimp industry plays a leading role in aquaculture development in Vietnam. Currently, the government is running a credit subsidy program to support farmers investing in improved production methods. This paper aimed to investigate white-legged shrimp farmers’ willingness to invest in improved production methods and to examine whether the current government policy for the sector is in line with ...
    • Willingness to pay to protect cold water corals 

      Armstrong, Claire W.; Aanesen, Margrethe; van Rensburg, Thomas; Sandorf, Erlend Dancke (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-16)
      There is increasing pressure to use currently untapped resources in the deep sea, raising questions regarding ecosystem service trade‐offs in these often unknown areas. We assessed the trade‐offs between protection of cold‐water coral reefs and economic activities, such as fisheries and petroleum extraction, through a survey of a representative sample of the populations of Norway and Ireland. ...