Abstract
This study assesses the impact of adoption of improved seed yam technology (the minisett technology) on yam yields and the income of smallholder farmers in the northwest region of Cameroon. This technology has the potential to increase yam yields by a factor of 2 to 3 compared to traditional techniques, however, adoption by smallholder farmers in Cameroon has so far been low. Survey data was collected from a total of 394 randomly sampled farmers in three of the five administrative divisions of the northwest region. Of this total sample a sub-sample of data from 274 farmers who had been exposed to the technology was analyzed using propensity score matching (PSM) and employing a variety of different matching algorithms that take into account counterfactuals and potential impact. PSM is a quasi-experimental research design which was adopted because it is known to address problems of selection bias resulting from sampling and selfselection issues. The results show that the adoption of the minisett technology has a positive and significant (p
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