Dimensions | YLD | YLL |
Two-dimensional (time×disability weight) | One-dimensional (time) | |
Concern about individual burden | ||
Experience: Do we experience it? | Yes | No |
Time: Does it harm us through time? | Yes | No |
Symmetry: Does it treat the past and future equally? | Yes | No |
Based on the three arguments, we may question whether YLLs measure an individual burden, if not, then YLDs and YLLs will be incommensurable.