Impact of Improved Farm Technologies on Yields: The Case of Improved Maize Varieties and Inorganic Fertilizer in Kenya
This study investigates the impact of package adoption of inorganic fertilizers and improved maize seed varieties on yield among smallholder households in Kenya. We used a quasi-experimental difference-in-differences approach combined with propensity score matching to control for both time-invariant and unobservable household heterogeneity. Our findings show that inorganic fertilizers and improved maize varieties significantly increase maize yields when adopted as a package, rather than as individual elements. The impact is greater at the lower end of the yield distribution than at the upper end. A positive effect of partial adoption is experienced only in the lower quartile of yield distribution. The policy implication is that complementary agricultural technologies should be promoted as a package, and should target households and areas experiencing low yields.
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.:
- Esther Duflo & Michael Kremer & Jonathan Robinson, 2009.
"Nudging Farmers to Use Fertilizer: Theory and Experimental Evidence from Kenya,"
NBER Working Papers
15131, National Bureau of Economic Research, Inc.
- Esther Duflo & Michael Kremer & Jonathan Robinson, 2011. "Nudging Farmers to Use Fertilizer: Theory and Experimental Evidence from Kenya," American Economic Review, American Economic Association, vol. 101(6), pages 2350-90, October.
- Benjamin Crost & Bhavani Shankar & Richard Bennett & Stephen Morse, 2007. "Bias from Farmer Self-Selection in Genetically Modified Crop Productivity Estimates: Evidence from Indian Data," Journal of Agricultural Economics, Wiley Blackwell, vol. 58(1), pages 24-36, 02.
- Barrett, Christopher B. & Moser, Christine M. & Barison, Joeli & McHugh, Oloro V., 2003.
"Better Technology, Better Plots or Better Farmers? Identifying Changes In Productivity and Risk Among Malagasy Rice Farmers,"
127212, Cornell University, Department of Applied Economics and Management.
- Christopher B. Barrett & Christine M. Moser & Oloro V. McHugh & Joeli Barison, 2004. "Better Technology, Better Plots, or Better Farmers? Identifying Changes in Productivity and Risk among Malagasy Rice Farmers," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 86(4), pages 869-888.
- Barrett, Christopher B. & Moser, Christine M., 2003. "Better Technology, Better Plots or Better Farmers? Identifying Changes in Productivity and Risk Among Malagasy Rice Farmers," 2003 Annual meeting, July 27-30, Montreal, Canada 22251, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Mariapia MENDOLA, 2005. "Farm households production theories: a review of institutional and behavioural responses," Departmental Working Papers 2005-01, Department of Economics, Management and Quantitative Methods at Università degli Studi di Milano.
- Jeffrey H. Dorfman, 1996. "Modeling Multiple Adoption Decisions in a Joint Framework," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(3), pages 547-557.
- Jalan, Jyotsna & Ravallion, Martin, 2003.
"Does piped water reduce diarrhea for children in rural India?,"
Journal of Econometrics,
Elsevier, vol. 112(1), pages 153-173, January.
- Jalan, Jyotsna & Ravallion, Martin, 2001. "Does piped water reduce diarrhea for children in rural India ?," Policy Research Working Paper Series 2664, The World Bank.
- Alberto Abadie, 2005. "Semiparametric Difference-in-Differences Estimators," Review of Economic Studies, Oxford University Press, vol. 72(1), pages 1-19.
When requesting a correction, please mention this item's handle: RePEc:rff:dpaper:dp-14-02-efd. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Webmaster)
If references are entirely missing, you can add them using this form.