The solution
Indian farmers often sold through local traders without seeing wider market prices. In 2007, Thomson Reuters launched Reuters Market Light, a paid SMS service that sent customized crop prices, weather forecasts, and advisory tips to farmers' existing mobile phones.
The clever part was refusing the obvious portal strategy. RML standardized on low-end phones and short, locally relevant messages, so a farmer could use price intelligence at harvest time without internet access or a computer.
Evidence was mixed but useful. J-PAL summarized a randomized evaluation in 100 Maharashtra villages: only 59 percent of offered farmers completed activation, yet subscribers were 39-46 percent more likely to cite RML as an information source, and younger subscribers received about 6 percent higher prices on average.
An AIS paper framed the broader mechanism: even in low-tech mandis, succinct mobile information could make regional markets more efficient and help farmers sell more profitably.
What it achieved
Use the farmer's existing phone as the market terminal
Why it worked
The team matched the medium to the field reality: SMS, not apps, websites, or kiosks.
Personalization made generic commodity data actionable by crop and location.
A subscription model tested whether farmers valued the information enough to pay, instead of treating the service as a one-off aid broadcast.
The trial showed the ceiling as well as the promise: information helps most when farmers can act on it through market choice or negotiation.
What can be applied
When the scarce resource is trust and bandwidth, make the product smaller than the user's constraint instead of teaching the user a new workflow.
Aftermath
RML became a reference case for mobile agriculture services in India. The randomized evaluation tempered the hype: average price and crop-loss effects were limited, but the service changed information use and market choice for some farmers, especially younger ones.
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