Impact of improved maize varieties on food security in Eastern Zambia: A doubly robust analysis

Manda, Julius; Gardebroek, Cornelis; Kuntashula, Elias; Alene, Arega D.

doi:10.1111/rode.12516

Cited by 103 publications

(91 citation statements)

References 42 publications

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“…The results also show that farmers who completed at least 6 years of education were more likely to adopt ICV. Education has been widely cited as an important determinant of adoption of improved agricultural technologies in Africa with the main reason behind its importance being that educated farmers have better access to information and are able to understand the importance and benefits of growing improved varieties (Abdulai, 2016, Alene and Manyong, 2007, Foster and Rosenzweig, 2010, Manda et al, 2018). Information plays a very important role in the adoption of improved agricultural technologies as it is expected that farmers will only adopt an improved variety if they have enough information about the benefits of a particular technology (Adegbola & Gardebroek, 2007).…”

Section: Empirical Results and Discussionmentioning

confidence: 99%

The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis

Manda¹,

Alene²,

Tufa³

et al. 2019

World Development

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Section: Empirical Results and Discussionmentioning

confidence: 99%

The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis

Manda¹,

Alene²,

Tufa³

et al. 2019

World Development

Self Cite

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“…Previous studies investigating the effects of information technology adoption or policy programme intervention have used a propensity score matching (PSM) method (e.g. Fentie and Beyene 2019;Hou et al 2019) and an inverse-probability weighted regression adjusted (IPWRA) estimator (Manda et al 2018;Adolwa et al 2019;Tambo and Mockshell 2018). For example, using the PSM approach, Fentie and Beyene (2019) have analysed the impact of row planting technology on the welfare of rural households in Ethiopia.…”

Section: Selection Bias Issue and Model Selectionmentioning

confidence: 99%

“…Previous studies have used either a propensity score matching technique or an inverseprobability weighted regression adjusted estimator to estimate the effects of a binary treatment variable (e.g. Adolwa et al 2019;Fentie and Beyene 2019;Hou et al 2019;Manda et al 2018;Tambo and Mockshell 2018). However, the two approaches fail to address the selection bias arising from unobserved factors.…”

Section: Introductionmentioning

confidence: 99%

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Internet Use, Sustainable Agricultural Practices and Rural Incomes: Evidence from China

Wang

2020

Aus J Agri & Res Econ

116

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Relatively little is known about the association between Internet use and environmentally-friendly agricultural innovation adoption. To fill this void, this study examines the impact of Internet use on the adoption of sustainable agricultural practices (SAPs) and their heterogeneous effects on farm income and household income. Unlike previous studies that analyse the dichotomous decision of agricultural innovation adoption, this study captures the number of SAPs adopted. We apply both endogenous-treatment Poisson regression model and unconditional quantile regression model to analyse unique farm-level data collected from China. The empirical results show that Internet use exerts a positive and statistically significant impact on the number of SAPs adopted, and the joint effects of Internet use and SAP adoption on farm income and household income are heterogeneous. In particular, we show that Internet use has a larger impact at the upper tail of household income but it has no significant impact on farm income. SAP adoption is negatively associated with farm income and household income across the selected quantiles.

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“…The ATT of the SWC can be obtained by comparing the mean outcomes between treatment and control groups (Imbens and Wooldridge 2008; Wooldridge 2002; World Bank 2010). This approach is widely applied in the literature (e.g., Amare et al 2012;Dillon 2011;Kassie et al, 2010Manda et al 2018 and we do not present the detail methodology here. For a detailed specification and the steps of PSM, see Imbens and Wooldridge (2008), Wooldridge (2002), and World Bank (2010).…”

Section: Endogenous Switching Regression (Esr)mentioning

confidence: 99%

Impact of soil and water conservation practices on household vulnerability to food insecurity in eastern Ethiopia: endogenous switching regression and propensity score matching approach

et al. 2019

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Governmental and developmental partners invest substantial resources to reduce land and water degradation in order to upgrade agricultural productivity, thus reducing food insecurity and related vulnerability in Sub-Saharan Africa. Understanding the impact of soil and water conservation on food insecurity outcomes would be a significant step toward improving environmental conditions, while ensuring sustainable and increased agricultural production. Therefore, this article analyzes the impact of adopting soil and water conservation on food insecurity and related vulnerability outcomes of farming households. A multi-stage stratified sampling procedure is used to identify a sample of 408 households from three districts in eastern Ethiopia. Vulnerability as expected poverty (three-step Feasible General Least Squares) is employed to analyze the vulnerability of sample households in the context of food insecurity. In addition, endogenous switching regressions with propensity score matching methods are combined to obtain consistent impact estimates. The study reveals that education and sex of household head, use of irrigation and fertilizer, source of information, and cultivated land are the main factors influencing the adoption of soil and water conservation. Moreover, adoption of soil and water conservation not only positively impacts the per capita food consumption expenditure and net crop value, it also significantly reduces the probability of farmers being food insecure, vulnerable to food insecurity, as well as transient and chronically food insecure. Therefore, policymakers and development organizations should consider soil and water conservation as a main strategy to reduce land degradation and improve the livelihoods of the rural farm households.

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Impact of improved maize varieties on food security in Eastern Zambia: A doubly robust analysis

Abstract: This study investigates the impact of improved maize varieties on household food security in eastern Zambia using household survey data from a sample of over 800 rural households. Since treatment effect estimates are

Cited by 103 publications

References 42 publications

The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis

The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis

Internet Use, Sustainable Agricultural Practices and Rural Incomes: Evidence from China

Impact of soil and water conservation practices on household vulnerability to food insecurity in eastern Ethiopia: endogenous switching regression and propensity score matching approach

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