Abstract via online journal. 2 pages., Technological innovation is vital to economic growth and food security in sub-Saharan Africa where agricultural productivity has been stagnant for a long time. Extension services and learning from peer farmers are two common approaches to facilitate the diffusion of new technologies, but little is known about their relative effectiveness. Selection bias, whereby well-motivated training participants would perform better even without extension services, as well as knowledge spillovers, where non-participants can indirectly benefit from extension services, are among the major threats to causal inference. Using a unique sequential randomized experiment on agricultural training, this study attempts to meet the dual objectives of executing rigorous impact evaluation of extension services and subsequent spillovers on rice production in Cote d’Ivoire. Specifically, to reduce selection bias, we randomly assigned eligibility for training participation; and to satisfy the stable unit treatment value assumption, control-group farmers were initially restricted from exchanging information with treated-group farmers who had received rice management training. Once some positive impacts were confirmed, information exchange between the treated and control farmers was encouraged. We found that the initial performance gaps created by the randomized assignment disappeared over time, due presumably to social learning from peer farmers. A detailed analysis concerning the information network and peer effects provided suggestive evidence that there were information and technology spillovers from treated to control farmers after removing the information exchange restriction. Overall, our study demonstrates that information dissemination by farmers can be as effective in improving practices as the initial training provided by extension services.
15 pages., Article #: 1277838, via online journal., Commercial channels can be non-conventional networks for disseminating agricultural information, especially if farmers are willing to pay for a DVD with
learning videos. Using purposive sampling, we selected retailer and involved them
in selling videos compiled in a DVD. Inside the jacket of DVD, we pasted a sticker
listing a phone number that buyers or video viewers could call for further questions.
We interviewed 341 of the buyers who called that number. After the phone interviews, snowball sampling was used to select 180 farmers for face-to-face interviews
in order to validate the information collected during the telephone interviews and
to understand the behavioural changes triggered by watching the videos. Within
four months of first distributing DVDs to retailers, 80% of the 700 DVDs were sold.
Distributing videos through commercial channels gives a fair chance to everyone to
learn, since the DVDs were sold on the open market at an affordable price. About
84% of the DVDs were sold at 1 USD, suggesting that all of the respondents were
willing to pay for learning DVDs; 86% of respondents said they now spent less
money on pesticides after watching the videos. Private sector actors can become
“new extensionists” and distribute agricultural information to rural populations.
