Social networks and farmer exposure to improved crop varieties in Tanzania
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.
|Date of creation:||Sep 2014|
|Contact details of provider:|| Postal: Platz der Göttinger Sieben 5, D-37073 Göttingen|
Web page: http://www.uni-goettingen.de/globalfood
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Santos, Paulo & Barrett, Christopher B., 2010. "Identity, Interest and Information Search in a Dynamic Rural Economy," World Development, Elsevier, vol. 38(12), pages 1788-1796, December.
- James E. Rauch, 2010. "Does Network Theory Connect to the Rest of Us? A Review of Matthew O. Jackson's Social and Economic Networks," Journal of Economic Literature, American Economic Association, vol. 48(4), pages 980-986, December.
- A. Colin Cameron & Jonah B. Gelbach & Douglas L. Miller, 2011.
"Robust Inference With Multiway Clustering,"
Journal of Business & Economic Statistics,
Taylor & Francis Journals, vol. 29(2), pages 238-249, April.
- Cameron, A. Colin & Gelbach, Jonah B. & Miller, Douglas L., 2011. "Robust Inference With Multiway Clustering," Journal of Business & Economic Statistics, American Statistical Association, vol. 29(2), pages 238-249.
- A. Colin Cameron & Jonah B. Gelbach & Douglas L. Miller, 2006. "Robust Inference with Multi-way Clustering," NBER Technical Working Papers 0327, National Bureau of Economic Research, Inc.
- A. Colin Cameron & Jonah B. Gelbach & Douglas L. Miller & Doug Miller, 2009. "Robust Inference with Multi-way Clustering," Working Papers 98, University of California, Davis, Department of Economics.
- Jonah B. Gelbach & Doug Miller, 2009. "Robust Inference with Multi-way Clustering," Working Papers 99, University of California, Davis, Department of Economics.
- Heidi Hogset & Christopher B. Barrett, 2010. "Social Learning, Social Influence, and Projection Bias: A Caution on Inferences Based on Proxy Reporting of Peer Behavior," Economic Development and Cultural Change, University of Chicago Press, vol. 58(3), pages 563-589, 04.
- Oriana Bandiera & Imran Rasul, 2006. "Social Networks and Technology Adoption in Northern Mozambique," Economic Journal, Royal Economic Society, vol. 116(514), pages 869-902, October.
- Bandiera, Oriana & Rasul, Imran, 2002. "Social Networks and Technology Adoption in Northern Mozambique," CEPR Discussion Papers 3341, C.E.P.R. Discussion Papers.
- Oriana Bandiera & Imran Rasul, 2002. "Social networks and technology adoption in Northern Mozambique," LSE Research Online Documents on Economics 3539, London School of Economics and Political Science, LSE Library.
- Oriana Bandiera & Imran Rasul, 2002. "Social Networks and Technology Adoption in Northern Mozambique," STICERD - Development Economics Papers - From 2008 this series has been superseded by Economic Organisation and Public Policy Discussion Papers 35, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
- Katleen Van den Broeck & Stefan Dercon, 2011. "Information Flows and Social Externalities in a Tanzanian Banana Growing Village," Journal of Development Studies, Taylor & Francis Journals, vol. 47(2), pages 231-252.
- Ira Matuschke & Matin Qaim, 2009. "The impact of social networks on hybrid seed adoption in India," Agricultural Economics, International Association of Agricultural Economists, vol. 40(5), pages 493-505, 09.
- Timothy G. Conley & Christopher R. Udry, 2010. "Learning about a New Technology: Pineapple in Ghana," American Economic Review, American Economic Association, vol. 100(1), pages 35-69, March.
- Timothy G. Conley & Christopher R. Udry, 2005. "Learning about a new technology: pineapple in Ghana," Proceedings, Federal Reserve Bank of San Francisco.
- Timothy G. Conley & Christopher R. Udry, 2000. "Learning About a New Technology: Pineapple in Ghana," Working Papers 817, Economic Growth Center, Yale University, revised May 2004.
- Conley, T.G. & Udry, C.R., 2000. "Learning about a New Technology: Pineapple in Ghana," Papers 817, Yale - Economic Growth Center.
- Douglas Gollin & Michael Morris & Derek Byerlee, 2005. "Technology Adoption in Intensive Post-Green Revolution Systems," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(5), pages 1310-1316.
- Fafchamps, Marcel & Gubert, Flore, 2007. "The formation of risk sharing networks," Journal of Development Economics, Elsevier, vol. 83(2), pages 326-350, July.
- Marcel Fafchamps & Flore Gubert, 2005. "The Formation of Risk Sharing Networks," Working Papers DT/2005/13, DIAL (Développement, Institutions et Mondialisation).
- Erenstein, Olaf & Kassie, Girma Tesfahun & Langyintuo, Augustine S. & Mwangi, Wilfred, 2011. "Characterization of Maize Producing Households in Drought Prone Regions of Eastern Africa," Socioeconomics Program Working Papers 147045, CIMMYT: International Maize and Wheat Improvement Center.
- repec:dau:papers:123456789/4392 is not listed on IDEAS
- Mitchell A. Petersen, 2009. "Estimating Standard Errors in Finance Panel Data Sets: Comparing Approaches," Review of Financial Studies, Society for Financial Studies, vol. 22(1), pages 435-480, January.
- Mitchell A. Petersen, 2005. "Estimating Standard Errors in Finance Panel Data Sets: Comparing Approaches," NBER Working Papers 11280, National Bureau of Economic Research, Inc.
- Goswami, Rupak & Basu, Debabrata, 2010. "Does Information Network Affect Technology Diffusion?," Working Papers/Conference Papers 97607, Ramakrishna Mission Vivekananda University, Integrated Rural Development and Management Faculty Centre.
- Nassul Ssentamu Kabunga & Thomas Dubois & Matin Qaim, 2012. "Heterogeneous information exposure and technology adoption: the case of tissue culture bananas in Kenya," Agricultural Economics, International Association of Agricultural Economists, vol. 43(5), pages 473-486, 09.
- Aliou DIAGNE, 2006. "Diffusion And Adoption Of Nerica Rice Varieties In Côte D'Ivoire," The Developing Economies, Institute of Developing Economies, vol. 44(2), pages 208-231.
- N. Lesca, 2010. "Introduction," Post-Print halshs-00640602, HAL.
- Annemie Maertens & Christopher B. Barrett, 2013. "Measuring Social Networks' Effects on Agricultural Technology Adoption," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 95(2), pages 353-359. Full references (including those not matched with items on IDEAS)