The Social Value of Mortality Risk Reduction: VSL vs. The Social Welfare Function Approach

Authors

Matthew D. Adler, Duke Law SchoolFollow
James K. Hammitt
Nicolas Treich

Document Type

Article

Publication Date

2014

Keywords

empirical research, risk equity, mortality risk, Value per statistical life, social welfare functions, cost-benefit analysis, equity, fairness, welfarism, risk policy

Abstract

We examine how different welfarist frameworks evaluate the social value of mortality risk reduction. These frameworks include classical, distributively unweighted cost–benefit analysis—i.e., the “value per statistical life” (VSL) approach—and various social welfare functions (SWFs). The SWFs are either utilitarian or prioritarian, applied to policy choice under risk in either an “ex post” or “ex ante” manner. We examine the conditions on individual utility and on the SWF under which these frameworks display sensitivity to wealth and to baseline risk. Moreover, we discuss whether these frameworks satisfy related properties that have received some attention in the literature, namely equal value of risk reduction, preference for risk equity, and catastrophe aversion. We show that the particular manner in which VSL ranks risk-reduction measures is not necessarily shared by other welfarist frameworks.

Comments

Attached is an author pre-print version from December 2013.

Citation

Matthew D. Adler et al., The Social Value of Mortality Risk Reduction: VSL vs. The Social Welfare Function Approach, 35 Journal of Health Economics 82-93 (2014)