Langford, Ian; Bateman, Ian; Langford, Hugh - In: Environmental & Resource Economics 7 (1996) 3, pp. 197-211
The use of dichotomous choice (DC) questions in the elicitation of willingness to pay (WTP) in contingent valuation studies is common practice at the present time. Recent research has shown that double-bounded DC questions provide statistically superior results to single-bounded questions, given...