Hwang, Joonghyun; Petrolia, Daniel R.; Interis, Matthew G. - Southern Agricultural Economics Association - SAEA - 2013
Arrow et al. (1993), the “Blue Ribbon” panel that issued guidelines for contingent valuation, recommended that respondents to contingent valuation surveys be explicitly allowed to give ‘no-answer’ responses such as ‘don’t know / not sure / prefer not to vote (PNV)’ in addition to...