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Impact evaluations
3ie Impact Evaluation Report 23

Enhancing food production and food security through improved inputs

3ie Impact Evaluation Report 23

Vavier Gine, Shreena Patel, Cristina Cuellar-Martinez, Sandi McCoy and Lauren Ralph

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In Tanzania, agriculture accounts for 27 per cent of GDP, 80 per cent of employment and 75 per cent of household income. It is a key component of the country strategy for poverty reduction. The National Agriculture Input Voucher Scheme (NAIVS), implemented since 2008 by the Ministry of Agriculture, Food Security and Cooperatives, provides a 50 per cent subsidy, through vouchers, for the purchase of chemical fertiliser and improved seed to maize and rice farmers. This study by Vavier Gine, Shreena Patel, Cristina Cuellar-Martinez, Sandi McCoy and Lauren Ralph evaluates the impact of NAIVS across Tanzania.

The findings do not show impacts on incomes, food security or educational attainment in the short term. However, the disenfranchised position of female-headed households relative to their male counterparts is clearly indicated. Female farmers were positively inclined toward the programme and its ability to help boost agricultural yields. But many of them could not afford the top-up payment and, as a result, did not participate. To make NAVIS more effective, the study recommends that the programme should be targeted better and a provision for transfer and sale of vouchers included.

Creating informed demand and impacts through innovative and cost-effective extension

Creating informed demand and impacts through innovative and cost-effective extension

Impact evaluation 3ie 2025  
The authors of this report summarize findings by using a randomized extensive treatment on clients’ understanding of index-based livestock insurance and its impacts.

Economic and empowerment impacts of millet processing and value-addition enterprises by women SHGs in tribal areas of Odisha, India (E²IMPART)

Economic and empowerment impacts of millet processing and value-addition enterprises by women SHGs in tribal areas of Odisha, India (E²IMPART)

Impact evaluation 3ie 2025  
The authors of this report present the findings on the economic and empowerment impacts of millet processing and value-addition enterprises by women SHGs in tribal areas of Odisha, India.

KhetScore: Impacts of using digital technologies to unlock credit and insurance for marginal farmers in Odisha

KhetScore: Impacts of using digital technologies to unlock credit and insurance for marginal farmers in Odisha

Impact evaluation 3ie 2025  
This report describes the findings of an impact evaluation of KhetScore, an innovative tool that employs digital technologies to unlock credit and insurance for small and marginal farmers in the state of Odisha, India.

Picture-based crop insurance: A randomized controlled trial evaluating the impacts of using smartphone camera data for claims verification in India

Picture-based crop insurance: A randomized controlled trial evaluating the impacts of using smartphone camera data for claims verification in India

Impact evaluation 3ie 2025  
The authors of this report summarize the findings from an impact evaluation of a crop insurance scheme called picture-based crop insurance in the state of Haryana, India.

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The effects of providing paid formal work and training on women’s empowerment: Evidence from weavers’ collectives in India

Impact evaluation 3ie 2025  
This report presents the results of a process evaluation of interventions aimed at weaver communities in Andhra Pradesh and Telangana implemented by the Chitrika Foundation.

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  • DOI : 10.23846/ow2171

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