The study shows that mobile-money services have had notable long-term effects on poverty reduction in Kenya - especially among female-headed households - and have inspired a surprising occupation shift among women.
The study led by Tavneet Suri, associate professor at Massachusetts Institute of Technology (MIT) in the US, estimates that, since 2008, access to mobile-money services increased daily per capita consumption levels of 194,000 - or 2 per cent - of Kenyan households, lifting them out of extreme poverty (living on less than USD 1.25 per day).
"Previously, we've shown mobile money helps you with financial resilience. But no one has understood, if you improve resilience, what happens over the longer term. This is the first study that looks at long-term poverty reduction and at gender," said Suri, who collaborated with William Jack, an economist at Georgetown University.
By 2015, over 270 mobile-money services were operating in 93 countries, with an estimated 411 million accounts.
More From This Section
The Kenyan study shows that mobile-money services are not just conveniences but do, in fact, have a positive impact on people's livelihoods, researchers said.
The study looked at M-PESA, the country's most popular service, which launched in 2007 and has more than 25 million Kenyan users.
Researchers compiled surveys of 1,600 households across Kenya over the years, looking at, among other things, average daily per capita consumption - meaning total money spent by the individual and household - and occupational choices.
They measured the rise in the number of service agents within one kilometer around each household - or "agent density" - during early rollout of the mobile-money services.
Households where agent density increased by five agents - the average in the sample - also saw a 6 per cent increase in per capita consumption, enough to push 64 (or roughly 4 per cent) of the sampled households above poverty levels.
The World Bank defines spending less than USD 1.25 per day as "extreme poverty," and spending less than USD 2 per day as "general poverty." Mean daily per capita consumption among the sample was USD 2.50.