pay some money for a public good, for reasons that differ from a genuine indifference to the good. For example, some people may dislike the idea of placing monetary values to public goods like the environment or a historical monument. Some may protest against the inefficiency of the public...

When modelling data generated from a discrete choice contingent valuation question, the treatment of zero bids affects the welfare estimates. Zero bids may come from respondents who are not interested in the provision of the public good; alternatively, some zero-bidders may be protesting about...

The Dichotomous Choice Contingent Valuation Method (DC-CVM), both in the single and the double bound formulation, has been in the last years the most popular technique among practitioners of contingent valuation, due to its simplicity of use in data collection. The single bound procedure is...