Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/101054
Authors: 
Magrini, Emiliano
Vigani, Mauro
Year of Publication: 
2014
Series/Report no.: 
LICOS Discussion Paper Series 352
Abstract: 
The paper analyses the impact of agricultural technologies on the four pillars of food security for maize farmers in Tanzania. Relying on matching techniques, we use a nationally representative dataset collected over the period 2010/2011 to estimate the causal effects of using improved seeds and inorganic fertilizers on food availability, access, utilization, and stability. Overall, the technologies have a positive and significant impact on food security, but substantial differences between the pillars are observed. Improved seeds show a stronger effect on food availability and access, while - in terms of utilization - both technologies increase the diet diversity and only improved seeds reduce the dependence on staple food. Finally, improved seeds reduce the household vulnerability while inorganic fertilizers guarantee higher resilience. The study supports the idea that the relationship between agricultural technologies and food security is a complex phenomenon, which cannot be limited to the use of welfare indexes as proxy for food security.
Subjects: 
Food security
technology adoption
propensity score matching
Tanzania
JEL: 
Q12
Q16
Q18
O13
Document Type: 
Working Paper

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