Journal
JOURNAL OF AGRICULTURAL ECONOMICS
Volume 62, Issue 2, Pages 474-492Publisher
WILEY
DOI: 10.1111/j.1477-9552.2010.00276.x
Keywords
Irrigation; Mali; programme evaluation; propensity score matching; small- and large-scale impacts; O13; Q12; Q15
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Funding
- Projet du Developpement de la Zone Lacustre - Phase II of the International Fund for Agricultural Development (IFAD)
- Programme Mali-Nord (GTZ/KfW)
- Cornell University
- Clark Atlanta University
- Einaudi Center at Cornell University and the International Food Policy Research Institute (IFPRI)
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This article investigates differences in household production and consumption among small- and large-scale irrigators to assess whether the scale of an irrigation project increases household welfare in Mali. Much of the evidence of the impact of irrigation does not use counterfactual analysis to estimate such impact or distinguish between the scale of the irrigation projects to be evaluated. In the dataset collected by the author, both a large-scale irrigation project and small-scale projects are used to construct counterfactual groups. Propensity score matching is used to estimate the average treatment effect on the treated for small and large irrigators relative to non-irrigators on agricultural production, agricultural income and consumption per capita. Small-scale irrigation has a larger effect on agricultural production and agricultural income than large-scale irrigation, but large-scale irrigation has a larger effect on consumption per capita. This suggests that market integration and non-farm externalities are important in realising gains in agricultural surplus from irrigation.
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