Labor Supply Found in 115 Experiments in Low and Middle Income Countries

Soomi Lee. USBIG Blog Editor

A sweeping new synthesis of unconditional cash trials in poorer countries finds people spent, saved, and worked more, not less.

Give a low-income household some cash and let them do whatever they want with it. That is the whole idea behind an unconditional cash transfer. Supporters say it treats people as the best judges of their own lives. Critics worry it teaches them to stop working. A new working paper tries to answer that with sheer weight of data.

Five economists pooled 115 studies covering 72 cash programs across 34 low- and middle-income countries. They started with a pile of nearly 7,000 candidate studies and kept only those that met a strict bar. Almost all were randomized, meaning some families were randomly assigned to receive cash, while a comparison group did not. That design is what lets researchers credit the changes to the money rather than to luck or ambition. The team then ran all results through a single shared statistical model, so findings from Kenya, Nigeria, and Ecuador could finally be read on the same page.

The paper is titled Unconditional Cash Transfers: A Bayesian Meta-Analysis of Randomized Evaluations in Low and Middle Income Countries. It is a National Bureau of Economic Research working paper (2026).

What the money did

The authors tracked 13 main outcomes. On ten of them, cash produced clear positive effects. Household spending rose, with food the largest share. Income went up. So did school enrollment, food security, savings, the total value of what families owned, and self-reported well-being. Children came out taller for their age, a standard marker of better nutrition. Three outcomes leaned in a good direction but were too uncertain to call, among them the number of hours people worked.

Cash did not push people out of work. Across these programs, labor force participation actually rose by about 3 percentage points at the typical transfer size. The authors say this runs directly counter to the old belief that a handout breeds idleness. Cash moved a slice of people out of wage jobs and into self-employment. Wage employment fell by roughly 9 percentage points. Non-wage work, mostly small enterprises and farming on one’s own account, rose by about 13 points. In places where a steady paycheck is scarce, a little money seems to let people start or grow something of their own.

Timing matters

One of the most practical lessons is about how the money arrives. Programs come in a few shapes. Some pay a single lump sum. Some pay a stream of smaller amounts that is still running when researchers take their measurements. While a monthly stream is flowing, spending keeps climbing over time, a sign that people invest part of each payment and earn a bit more later. Well-being also gets its strongest lift from ongoing monthly payments. But that lift fades once the payments stop.

Once a stream of payments ends, its long-run effects look a lot like those of a one-time lump sum. That undercuts the common belief that a big single grant is uniquely good for funding investments. The authors think households are simply skilled at moving money across time, saving when they can and borrowing when they must, which smooths out the difference between the two.

Bigger checks, and who holds them

The team also tested whether very large transfers unlock outsized gains, the kind that might lift a family past a tipping point and out of poverty for good. They did not find that pattern. Benefits grew roughly in step with the size of the transfer, not faster. They are careful to add that this does not disprove the tipping-point idea, since any such threshold might sit outside the range of amounts these studies happened to test.

Who receives the money mattered too. When transfers were directed to women, households showed larger gains in spending and income. Programs that framed the cash around children or food tended to improve food security in particular, even though the cash itself was unconditional.

Why it matters

Cash delivers across a wide spread of settings. In these countries, it does not appear to erode the will to work. And the payment schedule is a genuine lever, with monthly streams best for steady spending and well-being, and lump sums or completed streams better for building assets. By the authors’ own cost accounting, streams running two to three years offered the best value, returning close to double their cost in benefits over the first few years.

The biggest caution is about geography. Every bit of this evidence comes from lower-income countries. The authors state plainly that the results may not carry over to a wealthy country like the United States. Credit is harder to get in the places they studied, self-employment is far more common, and government safety nets are thinner, so cash can do work there that it might not do elsewhere. By contrast, they point to recent guaranteed income trials in the U.S., which changed employment only modestly, and to Finland and Alaska, where similar payments nudged work down slightly.

That points to a bigger lesson. Cash does not have one fixed effect on work. What it does depends on the labor market around the person who receives it. Where credit is hard to get, and most people already work for themselves, a transfer can buy the tools to do more, and work tends to rise. Where it can let some people ease off in certain conditions, and work dips a little. So the outcomes of any single trial are best read in their own setting. The relationship between unconditional cash transfers and labor supply is not a debate with a single answer. It is a different question in every labor market.

Read the working paper at the National Bureau of Economic Research