Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/103993
Authors: 
Muange, Elijah N.
Schwarze, Stefan
Qaim, Matin
Year of Publication: 
2014
Series/Report no.: 
GlobalFood Discussion Papers 45
Abstract: 
In Sub-Sahara Africa, adoption rates of improved crop varieties remain relatively low, which is partly due to farmers' limited access to information. In smallholder settings, information often spreads through informal networks. Better understanding of such networks could potentially help to spur innovation and farmers' exposure to new technologies. This study uses survey data from Tanzania to analyze social networks and their role for the spread of information about improved varieties of maize and sorghum. Regression models show that network links for the exchange of agricultural information are more likely between farmers who have similar educational but different wealth levels. Moreover, network links are more likely when farmers have direct contacts to extension officers, suggesting that information flows through informal channels can support but not replace formal channels. Social networks play a significant role for the spread of information about open-pollinated varieties. This is not the case for maize hybrids, which are sold by private seed companies.
Subjects: 
social networks
exposure
improved varieties
sorghum
maize
gender
JEL: 
O12
O13
O31
Q12
Q16
Document Type: 
Working Paper

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