Geoscience Reference
In-Depth Information
A highly influential example of its use is in the Exxon Valdez disaster, one of the first
applications to estimate non-use values (Liu
et al
.,
2010
) as an input to litigation (Carson
et
chaired by Nobel laureate Kenneth Arrow to comment and provide guidance on the valu-
ation methodologies applied. Recommendations included conducting survey pre-tests, sur-
vey design so as to minimize non-responses, and a preference for face-to-face interviews
Amore recent methodological development inthe environmental economics literature
has been the use of choice experiments (Hanley
et al
.,
2001
). Choice experiments (CEs)
originate from market research applications (Bateman,
2002
), but have been adopted in
non-market valuation of ecosystems since the mid 1990s. They are based on the premise
ecosystem-focused CEs, the 'commodity' in question might be different renewable energy
by offshore wind farms; (2) wave turbines; (3) onshore wind. These are compared with the
status quo (i.e. BAU) option of 'no new renewable energy installations'. The 'attributes'
withintheseoptionsincludedifferinglevelsofwildlifeimpactanddifferentlocations.Each
non-BAU option has an associated cost. There is no additional cost to the BAU option, but
the presumption of new fossil fuel based energy generation with higher air pollution and
greenhouse gas emissions. In CE surveys, respondents are presented with different choice
cards with differing attribute levels (at differing costs). Individuals must choose one op-
tion. Since a financial cost is included, a value for individual attributes can be estimated.
The CE approach has recently been applied to estimate the loss in recreational benefits as-
quently) does not allow value estimates for individual attributes in the same manner; there
is an overall pairwise comparison between two scenarios, each of which has certain attrib-
ute levels embedded within them. Both CE and CVM are valid approaches to valuation,