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- Samnaliev, Mihail; Stevens, Thomas H.; More, Thomas
- Ecological economics 2006 v.57 no.3 pp. 507
- willingness to pay, etc ; contingent valuation; methodology; public lands; surveys; New Hampshire; Idaho; Show all 7 Subjects
- ... A field test of two types of certainty calibration techniques in contingent valuation of public lands indicated that a 10-point certainty scale reduced WTP estimates by about half. Adjusting for uncertainty via a 'Not Sure' option did not reduce WTP estimates but the variance increased. There are several differences between these two ways of accounting for respondents' uncertainty, which may sugge ...