this comparison, as it stands, doesn’t immediately strike me as absurd. Grief has an odd counterfactual. We can only extend lives. People who’re saved will still die and the people who love them will still grieve. The question is how much worse the total grief is for a very young child (the typical beneficiary of e.g., AMF) than the grief for the adolescent, or a young adult, or an adult, or elder they’d become
My intuition, which is shared by many, is that the badness of a child’s death is not merely due to the grief of those around them. So presumably the question should not be comparing just the counterfactual grief of losing a very young child VS an [older adult], but also “lost wellbeing” from living a net-positive-wellbeing life in expectation?
I also just saw that Alex claims HLI “estimates that StrongMinds causes a gain of 13 WELLBYs”. Is this for 1 person going through StrongMinds (i.e. ~12 hours of group therapy), or something else? Where does the 13 WELLBYs come from?
I ask because if we are using HLI’s estimates of WELLBYs per death averted, and use your preferred estimate for the neutral point, then 13 / (4.95-2) is >4 years of life. Even if we put the neutral point at zero, this suggests 13 WELLBYs is worth >2.5 years of life.[1]
I think I’m misunderstanding something here, because GiveWell claims “HLI’s estimates imply that receiving IPT-G is roughly 40% as valuable as an additional year of life per year of benefit or 80% of the value of an additional year of life total.”
Can you help me disambiguate this? Apologies for the confusion.
My intuition, which is shared by many, is that the badness of a child’s death is not merely due to the grief of those around them. Thus the question should not be comparing just the counterfactual grief of losing a very young child VS an [older adult], but also “lost wellbeing” from living a net-positive-wellbeing life in expectation.
I didn’t mean to imply that the badness of a child’s death is just due to grief. As I said in my main comment, I place substantial credence (2/3rds) in the view that death’s badness is the wellbeing lost. Again, this my view not HLIs.
The 13 WELLBY figure is the household effect of a single person being treated by StrongMinds. But that uses the uncorrected household spillover (53% spillover rate). With the correction (38% spillover) it’d be 10.5 WELLBYs (3.7 WELLBYs for recipient + 6.8 for household).
GiveWell arrives at the figure of 80% because they take a year of life as valued at 4.55 WELLBYs = 4.95 − 0.5 according to their preferred neutral point, and StrongMinds benefit ,according to HLI, to the direct recipient is 3.77 WELLBYs --> 3.77 / 4.55 = ~80%. I’m not sure where the 40% figure comes from.
If I understand correctly, the updated figures should then be:
For 1 person being treated by StrongMinds (excluding all household spillover effects) to be worth the WELLBYs gained for a year of life[1] with HLI’s methodology, the neutral point needs to be at least 4.95-3.77 = 1.18.
If we include spillover effects of StrongMinds (and use the updated / lower figures), then the benefit of 1 person going through StrongMinds is 10.7 WELLBYs.[2] Under HLI’s estimates, this is equivalent to more than two years of wellbeing benefits from the average life, even if we set the neutral point at zero. Using your personal neutral point of 2 would suggest the intervention for 1 person including spillovers is equivalent to >3.5 years of wellbeing benefits. Is this correct or am I missing something here?
1.18 as the neutral point seems pretty reasonable, though the idea that 12 hours of therapy for an individual is worth the wellbeing benefits of 1 year of an average life when only considering impacts to them, and anywhere between 2~3.5 years of life when including spillovers does seem rather unintuitive to me, despite my view that we should probably do more work on subjective wellbeing measures on the margin. I’m not sure if this means:
WELLBYs as a measure can’t capturing what I care about in a year of healthy life, so we should not use solely WELLBYs when measuring wellbeing;
HLI isn’t applying WELLBYs in a way that captures the benefits of a healthy life;
The existing way of estimating 1 year of life via WELLBYs is wrong in some other way (e.g. the 4.95 assumption is wrong, the 0-10 scale is wrong, the ~1.18 neutral point is wrong);
HLI have overestimated the benefits of StrongMinds;
I have a very poorly calibrated view of how good / bad 12 hours of therapy / a year of life is worth, though this seems less likely.
Would be interested in your thoughts on this / let me know if I’ve misinterpreted anything!
Thanks Joel.
My intuition, which is shared by many, is that the badness of a child’s death is not merely due to the grief of those around them. So presumably the question should not be comparing just the counterfactual grief of losing a very young child VS an [older adult], but also “lost wellbeing” from living a net-positive-wellbeing life in expectation?
I also just saw that Alex claims HLI “estimates that StrongMinds causes a gain of 13 WELLBYs”. Is this for 1 person going through StrongMinds (i.e. ~12 hours of group therapy), or something else? Where does the 13 WELLBYs come from?
I ask because if we are using HLI’s estimates of WELLBYs per death averted, and use your preferred estimate for the neutral point, then 13 / (4.95-2) is >4 years of life. Even if we put the neutral point at zero, this suggests 13 WELLBYs is worth >2.5 years of life.[1]
I think I’m misunderstanding something here, because GiveWell claims “HLI’s estimates imply that receiving IPT-G is roughly 40% as valuable as an additional year of life per year of benefit or 80% of the value of an additional year of life total.”
Can you help me disambiguate this? Apologies for the confusion.
13 / 4.95
I didn’t mean to imply that the badness of a child’s death is just due to grief. As I said in my main comment, I place substantial credence (2/3rds) in the view that death’s badness is the wellbeing lost. Again, this my view not HLIs.
The 13 WELLBY figure is the household effect of a single person being treated by StrongMinds. But that uses the uncorrected household spillover (53% spillover rate). With the correction (38% spillover) it’d be 10.5 WELLBYs (3.7 WELLBYs for recipient + 6.8 for household).
GiveWell arrives at the figure of 80% because they take a year of life as valued at 4.55 WELLBYs = 4.95 − 0.5 according to their preferred neutral point, and StrongMinds benefit ,according to HLI, to the direct recipient is 3.77 WELLBYs --> 3.77 / 4.55 = ~80%. I’m not sure where the 40% figure comes from.
That makes sense, thanks for clarifying!
If I understand correctly, the updated figures should then be:
For 1 person being treated by StrongMinds (excluding all household spillover effects) to be worth the WELLBYs gained for a year of life[1] with HLI’s methodology, the neutral point needs to be at least 4.95-3.77 = 1.18.
If we include spillover effects of StrongMinds (and use the updated / lower figures), then the benefit of 1 person going through StrongMinds is 10.7 WELLBYs.[2] Under HLI’s estimates, this is equivalent to more than two years of wellbeing benefits from the average life, even if we set the neutral point at zero. Using your personal neutral point of 2 would suggest the intervention for 1 person including spillovers is equivalent to >3.5 years of wellbeing benefits. Is this correct or am I missing something here?
1.18 as the neutral point seems pretty reasonable, though the idea that 12 hours of therapy for an individual is worth the wellbeing benefits of 1 year of an average life when only considering impacts to them, and anywhere between 2~3.5 years of life when including spillovers does seem rather unintuitive to me, despite my view that we should probably do more work on subjective wellbeing measures on the margin. I’m not sure if this means:
WELLBYs as a measure can’t capturing what I care about in a year of healthy life, so we should not use solely WELLBYs when measuring wellbeing;
HLI isn’t applying WELLBYs in a way that captures the benefits of a healthy life;
The existing way of estimating 1 year of life via WELLBYs is wrong in some other way (e.g. the 4.95 assumption is wrong, the 0-10 scale is wrong, the ~1.18 neutral point is wrong);
HLI have overestimated the benefits of StrongMinds;
I have a very poorly calibrated view of how good / bad 12 hours of therapy / a year of life is worth, though this seems less likely.
Would be interested in your thoughts on this / let me know if I’ve misinterpreted anything!
More precisely, the average wellbeing benefits from 1 year of life from an adult in 6 African countries
3.77*(1+0.38*4.85)