(7)
Model estimation and welfare estimates. Flexible specifications of count models are suggested within
the
demand function approach. Random utility travel cost models have recently focussed on preference
heterogeneity by using either finite or continuous-mixture distributions. Recently introduced
in
outdoor
recreation,
the
specification
of
utility
in
the
WTP
space
is
suggested,
allows
for
the
estimation
of
the
distributions
of
the
WTPs
directly,
rather
than
deriving
indirectly,
as
in the traditional setting of the utility in the preference space (Scarpa et al., 2008; Thiene and
Scarpa,
2009).
because
them
it
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