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1
Social desirability and environmental valuation
Hohenheimer volkswirtschaftliche Schriften, Band 66
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2
The ecological price of getting rich in a green desert
a contingent valuation study in rural Southwest China
FZID discussion papers ; 55-2012;TGIN discussion Paper
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4
Respondent incentives in contingent valuation
the role of reciprocity
FZID discussion papers ; 39-2011