期刊
JOURNAL OF AGRICULTURAL ECONOMICS
卷 66, 期 3, 页码 640-659出版社
WILEY-BLACKWELL
DOI: 10.1111/1477-9552.12099
关键词
Cost of risk; downside risk; food security; joint adoption; Malawi; sub-Saharan Africa
资金
- Australian Centre for International Agricultural Research (ACIAR)
- Australian International Food Security Research Centre (AIFSRC) through International Maize and Wheat Improvement Center (CIMMYT)-led Sustainable Intensification of Maize-Legume Cropping Systems in Eastern and Southern Africa (SIMLESA) program
- Adoption Pathways Project
- CGIAR research programme on maize
Employing nationally representative data, we investigate the impact of Sustainable Intensification Practices (SIPs) on farm households' food security, downside risk and the cost of risk in Malawi. The analysis relies on a flexible moment-based specification of a stochastic production function in a multinomial endogenous switching regression framework to correct for the selection bias stemming both from observed and unobserved heterogeneity. A quantile moment approach is used to estimate the cost of risk. After controlling for the effects of unobserved heterogeneity and several observable variables on maize production and downside risk functions, estimation results show that the adoption of SIPs increases food security and reduces downside risk exposure and the cost of risk. We estimate greater food security and larger reduction in downside risk from simultaneous adoption of both crop diversification (maize-legume intercropping and rotations) and minimum tillage, suggesting that there are complementary benefits from these practices. We find most of the cost of risk comes from exposure to downside risk. Our findings imply that in dealing with production risks development agents should encourage the adoption of agronomic and resource-management practices along with other risk mitigation and food security improving strategies.
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