Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/73987
Authors: 
Scarpa, Riccardo
Menzel, Susanne
Year of Publication: 
2005
Series/Report no.: 
Nota di Lavoro, Fondazione Eni Enrico Mattei 26.2005
Abstract: 
We report on a discrete-choice CV study conducted in Germany to value the WTP for biodiversity protection in less developed countries. To systematically investigate survey realism and subjective threat assessment from the loss of biodiversity described in the scenario the study includes questions to uncover the constructs of Protection Motivation Theory, which is introduced to the CV literature. The patterns of responses to such questions are analysed using an Expectation-Maximization algorithm to derive class membership probabilities. These are found to match the predictions of Protection Motivation Theory and systematically improve the logistic analysis of the WTP responses.
Subjects: 
Biodiversity valuation
Protection motivation theory
Latent class analysis
Expectation-Maximization algorithm
Contingent valuation
JEL: 
Q2
D6
C42
C25
Document Type: 
Working Paper

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