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...

It is still an ongoing discussion whether benefits resulting from reduced mortality risk should be valuated differently, depending on the age of the beneficiaries. Theory suggests that the influence of age on the value of statistical life (VSL), which is a monetary measure for reduced/prevented...

Sensitivity (proportionality) of willingness to pay to (small) risk changes is often used as a criterion to test for valid measures of economic preferences. In a contingent valuation (CV) study conducted in Austria, 1,005 respondents were asked their willingness to pay (WTP) for preventing an...

Valuing a change in the risk of death is a key input into the calculation of the benefits of environmental policies that save lives. Typically such risks are monetized using the Value of a Statistical Life (VSL). Because the majority of the lives saved by environmental policies are those of...

This paper examines factors that may influence the estimates of the Value of a Statistical Life obtained from contingent valuation surveys that elicit the willingness to pay (WTP) for mortality risk reductions. We examine the importance of distributional assumptions, the choice of the welfare...

This paper presents estimates of the benefits of clearing landmines in two provinces in rural Cambodia using the contingent-valuation (CV) method. The data came from a survey where we asked respondents referendum-type questions that elicit their willingness to pay for landmine clearance. The...

Development agencies spend approximately US$400 million per year on landmine clearance. Yet many cost-benefit evaluations suggest that landmine clearance is socially wasteful because costs appear to far outweigh social benefits. This paper presents new estimates of the benefits of clearing...