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Analysis of adoption and impacts of improved cassava varieties

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  • Khonje, Makaiko
  • Mkandawire, Petros
  • Manda, Julius
  • Alene, Arega

Abstract

This paper analyzes the adoption and welfare impacts of improved cassava varieties in Zambia using data from a sample of 500 farm households. Using different treatment effect estimators—endogenous switching regression, propensity score matching, and inverse probability weighting, the paper shows that adoption of improved cassava varieties leads to significant gains in crop yields, household income, and food security. Results further show that improved cassava varieties have significant poverty-reducing impacts in Zambia. Stimulating agricultural growth largely depends on policies that stimulate adoption of improved cassava varieties.

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  • Khonje, Makaiko & Mkandawire, Petros & Manda, Julius & Alene, Arega, 2015. "Analysis of adoption and impacts of improved cassava varieties," 2015 Conference, August 9-14, 2015, Milan, Italy 211842, International Association of Agricultural Economists.
  • Handle: RePEc:ags:iaae15:211842
    DOI: 10.22004/ag.econ.211842
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    2. Adu-Gyamfi Poku & Regina Birner & Saurabh Gupta, 2018. "Why do maize farmers in Ghana have a limited choice of improved seed varieties? An assessment of the governance challenges in seed supply," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 10(1), pages 27-46, February.
    3. Botero, Hernan & Barnes, Andrew P. & Perez, Lisset & Rios, David & Ramirez-Villegas, Julian, 2021. "The determinants of common bean variety selection and diversification in Colombia," Ecological Economics, Elsevier, vol. 190(C).
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    5. Tesfaye, Wondimagegn & Tirivayi, Nyasha, 2018. "The impacts of postharvest storage innovations on food security and welfare in Ethiopia," Food Policy, Elsevier, vol. 75(C), pages 52-67.
    6. William Nkomoki & Miroslava Bavorová & Jan Banout, 2019. "Factors Associated with Household Food Security in Zambia," Sustainability, MDPI, Open Access Journal, vol. 11(9), pages 1-18, May.
    7. Zhongkun Zhu & Wanglin Ma & Chenxin Leng & Peng Nie, 2021. "The Relationship Between Happiness and Consumption Expenditure: Evidence from Rural China," Applied Research in Quality of Life, Springer;International Society for Quality-of-Life Studies, vol. 16(4), pages 1587-1611, August.
    8. Larson,Donald F. & Muraoka,Rie & Otsuka,Keijiro, 2016. "On the central role of small farms in African rural development strategies," Policy Research Working Paper Series 7710, The World Bank.
    9. Tufa, Adane Hirpa & Alene, Arega D. & Manda, Julius & Akinwale, M.G. & Chikoye, David & Feleke, Shiferaw & Wossen, Tesfamicheal & Manyong, Victor, 2019. "The productivity and income effects of adoption of improved soybean varieties and agronomic practices in Malawi," World Development, Elsevier, vol. 124(C), pages 1-1.
    10. Cindybell Gamboa & Goedele Van den Broeck & Miet Maertens, 2018. "Smallholders’ Preferences for Improved Quinoa Varieties in the Peruvian Andes," Sustainability, MDPI, Open Access Journal, vol. 10(10), pages 1-22, October.
    11. Adolwa, Ivan Solomon & Schwarze, Stefan & Buerkert, Andreas, 2019. "Impacts of integrated soil fertility management on yield and household income: The case of Tamale (Ghana) and Kakamega (Kenya)," Ecological Economics, Elsevier, vol. 161(C), pages 186-192.
    12. Sinyolo, Sikhulumile, 2020. "Technology adoption and household food security among rural households in South Africa: The role of improved maize varieties," Technology in Society, Elsevier, vol. 60(C).
    13. Yigezu, Yigezu A. & Abbas, Enas & Swelam, Atef & Sabry, Sami R.S. & Moustafa, Moustafa A. & Halila, Habib, 2021. "Socioeconomic, biophysical, and environmental impacts of raised beds in irrigated wheat: A case study from Egypt," Agricultural Water Management, Elsevier, vol. 249(C).
    14. Gao, Yang & Niu, Ziheng & Yang, Haoran & Yu, Lili, 2019. "Impact of green control techniques on family farms' welfare," Ecological Economics, Elsevier, vol. 161(C), pages 91-99.
    15. Abdul-Rahaman, Awal & Issahaku, Gazali & Zereyesus, Yacob A., 2021. "Improved rice variety adoption and farm production efficiency: Accounting for unobservable selection bias and technology gaps among smallholder farmers in Ghana," Technology in Society, Elsevier, vol. 64(C).
    16. Teklewold, Hailemariam & Adam, Rahma I. & Marenya, Paswel, 2020. "What explains the gender differences in the adoption of multiple maize varieties? Empirical evidence from Uganda and Tanzania," World Development Perspectives, Elsevier, vol. 18(C).
    17. Manda, Julius & Alene, Arega D. & Tufa, Adane H. & Abdoulaye, Tahirou & Wossen, Tesfamicheal & Chikoye, David & Manyong, Victor, 2019. "The poverty impacts of improved cowpea varieties in Nigeria: A counterfactual analysis," World Development, Elsevier, vol. 122(C), pages 261-271.
    18. Backson Mwangi & Ibrahim Macharia & Eric Bett, 2021. "Ex-post Impact Evaluation of Improved Sorghum Varieties on Poverty Reduction in Kenya: A Counterfactual Analysis," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 154(2), pages 447-467, April.
    19. Manda, Julius & Khonje, Makaiko G. & Alene, Arega D. & Tufa, Adane H & Abdoulaye, Tahirou & Mutenje, Munyaradzi & Setimela, Peter & Manyong, Victor, 2020. "Does cooperative membership increase and accelerate agricultural technology adoption? Empirical evidence from Zambia," Technological Forecasting and Social Change, Elsevier, vol. 158(C).
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    21. Varma, Poornima, 2017. "Adoption of System of Rice Intensification and its Impact on Rice Yields and Household Income: An Analysis for India," IIMA Working Papers WP2017-02-03, Indian Institute of Management Ahmedabad, Research and Publication Department.
    22. Ruzzante, Sacha & Labarta, Ricardo & Bilton, Amy, 2021. "Adoption of agricultural technology in the developing world: A meta-analysis of the empirical literature," World Development, Elsevier, vol. 146(C).

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