We assume that economic justice requires resources to be allocated fairly, and we construct individual well-being measures that embody fairness principles in interpersonal comparisons. These measures are required to respect agents' preferences. Across preferences well-being comparisons are required to depend on comparisons of the bundles of resources consumed by agents. We axiomatically justify two main families of well-being measures reminiscent to the ray utility and money-metric utility functions.
Fleurbaey, M., & Maniquet, F. (2017). Fairness and well-being measurement. Mathematical Social Sciences, 90, 119-128. https://doi.org/10.1016/j.mathsocsci.2016.11.003 (Original work published 2017)