Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.iniap.gob.ec/handle/41000/5821
Tipo de Documento: Artículo
Autor : Mooney, Daniel F.
Swinton, Scott M.
Subía, Cristian
Peralta, Eduardo
Título : Returns to Disease Resistance Research When Pest Management Is an Option
Palabras clave : AGRICULTURAL RESEARCH;BUSH BEAN;ECUADOR;IMPACT ASSESSMENT
Fecha de publicación : 1-mar-2022
Editorial : Quito, EC: INIAP-EESC, 2022
Código: *EC-INIAP-BEESC-EA. Quito (INIAP/417)
Páginas: p. 15
Estación: E. E. Santa Catalina
Resumen : Resistant cultivars offer a pathway to sustainable intensification by maintaining yields and reducing inputs in the face of disease pressure. Past studies of economic returns to crop breeding research for disease resistance measured farm-level benefits, by comparing yields for improved resistant varieties (RVs) to susceptible traditional varieties. This approach will poorly approximate actual research benefits if non-RV pest management options exist, because it does not account for farmer pest control behavior. We propose a unit cost model that controls for farm-level yields and pesticide inputs. The model estimates the difference in unit variable costs (UVC), with and without disease pressure for RV adopters and non-adopters, while holding pest control inputs, farm characteristics, and other factors fixed. We apply the model to data from 136 bean farmer households in northern Ecuador, where RV research is ongoing and fungicide use is widespread. We find no difference in UVC, with and without disease pressure for non-adopters. For adopters, UVC is 24% lower with disease pressure than without. This translates to an ex-post net present value (NPV) of USD 698,828 and an internal rate of return (IRR) of 17%, compared to an NPV of USD 887,391 and IRR of 29%, when accounting for yield differences only. The results oblige impact assessments to account for changes in yields and input costs when pest management is an option.
Citación : Mooney, D.F.; Swinton, S.M.; Subía, C.; Peralta, E. Returns to Disease Resistance Research When Pest Management Is an Option. Sustainability 2022, 14, 2859. https:// doi.org/10.3390/su14052859
URI : http://repositorio.iniap.gob.ec/handle/41000/5821
Aparece en las colecciones: Investigaciones EESC

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Impacto económico de la resistencia e enfermedades en fréjol, Ecuador (1).pdf522,73 kBAdobe PDFVista previa
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