This study investigates whether or not the scale bias found in contingent valuation (CVM) studies on mortality risk reductions is a result of cognitive constraints among respondents. Scale bias refers to insensitivity and non near-proportionality of the respondents' willingness to pay (WTP) to...

This study investigates whether or not the scale bias found in contingent valuation (CVM) studies on mortality risk reductions is a result of cognitive restraints among respondents. Scale bias refers to insensitivity and non near-proportionality of the respondents' willingness to pay (WTP) to...

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...

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...

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...

We report the results of a contingent valuation study of the value of a serious statistical accident (VSSA) in an urban road safety context in Sweden. To account for scale bias of responses (i.e., the insensitivity of the willingness-to-pay value to the size of the risk reduction being valued)...

This paper on the value of a statistical life (VSL) has been prepared for the Handbook in Transport Economics, edited by André de Palma, Robin Lindsey, Emile Quinet and Roger Vickerman. The paper's first objective is to survey some classical theoretical and empirical findings in the VSL...

Although attractive in terms of its incentive compatibility, the standard single bound (SB) dichotomous choice technique for eliciting willingness to pay (WTP) responses in contingent valuation surveys has a major drawback in terms of its low statistical efficiency. While alternatives such as...

Stated preference methods using surveys to elicit willingness to pay have been shown to suffer from hypothetical bias and scope/scale bias. Hypothetical bias usually means that willingness to pay is exaggerated in the hypothetical scenario and scope/scale bias means that there is an...