Keywords:Mixture Model; Contingent valuation; Zero Willingness to Pay (search for similar items in EconPapers) JEL-codes:C25C51Q26 (search for similar items in EconPapers) Date: 1996-11-17 Note: Type of Document - ; prepared on UNIX Sparc TeX; to print on PostScript; pages: 30 ; figures: request from author. We never published this piece and now we would like to reduce our mailing and xerox cost by posting it. View list of referencesView citations in EconPapers