This study examines the effect on respondents' willingness to pay to reduce mortality risk by the order of the question in a stated preference study. Using answers from an experiment conducted on a Swedish sample where respondents’ cognitive ability was measured and where they participate in a...

Background: Economic evaluation of policies regarding out-of-hospital cardiac arrest (OHCA) is important and we estimate the value of a statistical life (VSL) for OHCA victims. Method: Responses to a national Swedish mail survey in 2007, based on the stated-preference technique (contingent...

Hypothetical bias is a serious problem of stated preference techniques. The certainty approach calibrates answers by assessing different weights to remedy respondents’ valuation. However, very little research has been done to find a link between economic theory and empirical treatment of...

Validity in contingent valuation (CV) is often tested through the sensitivity of estimated willingness to pay (WTP) to the size or quality of a good or service (‘more is better’ and near proportionality). We investigate the performance of two communication aids (a flexible community analogy...