In "Global Health 2035," The Lancet Commission on Investing in Health adds the value of increased life expectancy to the value of growth in GDP when assessing national well-being. This paper investigates the sensitivity of this estimate to underlying assumptions such as the effects of income, age, life expectancy, and the sequencing of calculations.
Chang AY, Robinson LA, Hammitt JK, Resch SC. Economics in "Global Health 2035": A Sensitivity Analysis of the Value of a Life Year Estimates. Journal of Global Health 2017; 7. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5370212/