Our model: GiveWell's analysis plus your assumptions and our accounting adjustments (salary sacrifice, credit for shared outcomes).

1.0× as much good per dollar as GiveDirectly · rank 3 of 3

Joint low 0.30×, joint high 3.3×. In its own unit: 8.60 × 10⁻³ GiveWell units of value per dollar. Change your assumptions

  • 70% of the uncertainty comes from judgment calls and shared assumptions.
  • 17 inputs on the result's path have no range, so they add no uncertainty here.
  • Source analysis is 23 months old.

The evaluation

Summary

GiveDirectly sends about $1,000 by mobile money to each poor household it enrols in East Africa, with no conditions. GiveWell estimates the Kenya program at 0.0087 units of value per dollar. That is 2.6 times GiveWell’s older estimate for cash, the “× cash” figure it still benchmarks against. We reproduce that model exactly and use it as the site’s yardstick: every other charity is shown as a multiple of this one.

With our default assumptions the result barely moves (0.0086 units per dollar). Most of GiveDirectly’s cost is the transfers themselves, so our salary-sacrifice adjustment has little to act on. Its range runs from 0.3× to 3.3× itself. The width comes almost entirely from GiveWell’s own uncertainty about spillovers and long-run returns.

What the charity does

GiveDirectly identifies villages with high poverty rates, enrols eligible households, and sends one lump-sum transfer, now about $865 in Kenya. About 84 cents of each donated dollar reaches recipients; the rest pays for targeting, enrolment, delivery and overhead. Recipients decide how to spend it. In trials, households consume a little over half in the first year and invest the rest, mostly in livestock, roofs and small businesses.

How the impact happens

  1. Cash raises the household’s consumption in the first year, by about 43% over a baseline of $1.79 a day.
  2. The invested share pays returns over the next nine years.
  3. The money spent locally raises the incomes of neighbours who didn’t receive a transfer (spillovers).
  4. Preliminary evidence suggests the transfers reduce deaths of young children.

GiveWell values consumption on a log scale, so a dollar counts for more the poorer the person, and converts averted deaths with its moral weights.

How the model works

The model follows GiveWell’s November 2024 spreadsheet row by row. It works through program reach, then recipient consumption, spillovers and mortality. It finishes with supplementary adjustments (morbidity, development, fraud and fungibility, together +8%). Country data such as purchasing-power conversion and child mortality come from our shared Kenya facts, so other Kenya models will use the same numbers.

What drives the result

The three biggest levers are:

  • How much GiveWell values consumption against deaths (a moral weight). It moves the result by about ±22%.
  • How far to trust the spillover estimate. It rests on one study (Egger et al. 2022), significant only at the 10% level, so GiveWell discounts it heavily. Its internal and external validity adjustments each move the result by about ±20%.
  • How long the investment returns last. This sits within GiveWell’s ±40% range.

No single input changes the result by more than about a quarter. The joint range is wider because it sets them all at once.

Where we differ from GiveWell

Only in the adjustments we add on top. These are judgments of ours and are labelled as such.

  • Salary sacrifice: we treat the gap between staff pay and what staff could earn elsewhere as an in-kind donation. For GiveDirectly it is small: staff pay is about 8% of cost and the gap about 15%, so the result falls by about 1.4%.
  • Shared credit: GiveDirectly delivers transfers itself, so full credit and shared credit give the same answer.

Switch to GiveWell’s model above to see their figures exactly.

Biggest uncertainties

  • The mortality effect comes from preliminary, unpublished results. GiveWell halves it, and a different read of the final paper could move the result by more than our range shows.
  • Spillovers are estimated in Western Kenya in 2014–2017; today’s programs run in different markets.
  • Our staff cost and pay-gap figures are guesses until we extract GiveDirectly’s audited financials.

What isn’t modelled

Room for more funding, organisational strength and track record matter for a giving decision; they aren’t scored here yet. Effects on recipients’ wellbeing beyond consumption and mortality enter only through GiveWell’s supplementary adjustments.

Sources

What drives this result

Each bar moves one input from the low to the high end of its range, holding the rest at their central values. Log scale, as a multiple of GiveDirectly. Dashed line: central estimate.

observed estimate judgment or shared assumption

Shows the 8 inputs that move the result most. Ranges come from the source where it gives them; explainers say when a range is ours. Source: charityevals model of GiveWell, GiveDirectly's Cash for Poverty Relief Program (November 2024).

The model, row by row

Click any row for its explanation, source and formula. Formulas link to the rows they use. Values update with your assumptions.

RowValueKind

Program reach

How many people a fixed donation reaches. The $1M donation is arbitrary; it cancels out in the per-dollar result.

$1.00MJudgment
$865Observed
84%79% – 89%Observed
971Calculated
shared fact2.37Calculated
$2,049Calculated
4.2Observed
$488Calculated
4,079Calculated

Consumption gains to recipients

Recipients spend part of the transfer in year one and invest the rest, which pays off over the next nine years. Gains are valued on a log scale: a dollar is worth more to someone poorer.

$652$554 – $750Observed
43%Estimate
57%Calculated
$278Calculated
42.7%Calculated
0.355Calculated
0.513Calculated
2,090Calculated
123%73.8% – 172%Estimate
4,663Calculated
90%Judgment
4,196Calculated

Spillovers to non-recipients

Cash spent locally raises neighbours' incomes too. Based on Egger et al. (2022), heavily discounted for doubts about how well it replicates.

2.5×Observed
70.3%Estimate
60%27% – 93%Judgment
80%32% – 128%Judgment
80%60% – 100%Judgment
67.5%Calculated
2,833Calculated

Mortality

Preliminary evidence that cash reduces child deaths, halved for doubts about the study.

12.9%Observed
525Calculated
shared fact4.11%Calculated
5.7%Observed
shared fact4.63%Calculated
1.23×Calculated
5.06%Calculated
45%Observed
50%25% – 75%Judgment
22.5%Calculated
5.99Calculated
694Calculated
50%Judgment
1,042Calculated

Supplementary adjustments

Effects GiveWell doesn't model explicitly, each as a % of the modelled benefits.

10%Judgment
5%Judgment
2%Judgment
-2%Judgment
-5%Judgment
-2%Judgment
108%Calculated

Bottom line

8,071Calculated
8,717Calculated
8.72 × 10⁻³Calculated
3.35 × 10⁻³Estimate
2.6×Calculated

Your dollar's share

charityevals adjustments on top of GiveWell's model. With the default assumptions they change little for GiveDirectly, because most of its cost is the transfers themselves.

charityevals8%4% – 12%Judgment
charityevals15%0% – 35%Judgment
$14,118Calculated
98.6%Calculated
8.60 × 10⁻³Calculated