Abstract

In quantifying the global burden of disease in terms of Disability-Adjusted Life Years (DALYs), we must determine both Years of Life Lost (YLLs) and Years Lost to Disability (YLDs). In setting priorities for global health, many have felt that YLLs should not always simply equal life expectancy at death. To this end, Dean Jamison and colleagues recommend the use of a DALY metric that incorporates Acquisition of Life Potential (ALP). When an individual dies, the YLLs that we would otherwise count are multiplied by the value of the ALP function, which rises gradually from 0 to 1 during the first stages of an individual’s life. Jamison et al. do not provide a detailed philosophical justification for the use of gradual ALP. In this chapter I explain why I believe the Time-Relative Interest Account represents the most plausible ethical basis for the ALP approach and describe how we might model ALP in light of this account.