Consulta: subjectFacets:"Benefit-cost"
Registros recuperados: 4
Data/hora: 01/06/2024 12:34:09

The economic value of releasing parasitoid for the control of maize stemborers in East and Southern Africa
Provedor de dados: 31
Autores: Kipkoech,   Anderson Kipruto; Schulthess,   Fritz; Yabann,   Wilson K.; Maritim,   Henry K.; Muchugu,   Erick; Mithofer,   Dagmar.
The braconid larval parasitoid Cotesia flavipes Cameron was introduced from Asia into East and Southern African region starting in 1993 to control the invasive exotic maize stemborer Chilo partellus (Swinhoe) (Lepidoptera: Crambidae). A quasi-experiment was constructed using farmers that applied sublethal dosages of pesticide in assessing the counterfactual for the impact of the establishment of the introduced parasitoid in five countries in the region. Logistic regression method was used to estimate the probability that farmers’ would inadvertently exclude parasitoids in their maize field. Thereafter the propensity score matching method was used to find corresponding farmers excluding parasitoids among those who did not for yield comparison. The...
Tipo: Conference Paper or Presentation
Palavras-chave: Benefit-cost; Biological control; Impact assessment; Maize; Stemborers; Parasitoids; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Food Security and Poverty.
Ano: 2009
URL: http://purl.umn.edu/51679

Spatial variation in benefits and costs, or why pollution isn't always for sale
Provedor de dados: 31
Autores: Berck,   Peter; Helfand,   Gloria E.; Kim,   Hong Jin.
Tipo: Working or Discussion Paper
Palavras-chave: Abatement cost; Air pollution; Benefit-cost; Analysis; Clean air act; Environmental Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/43914

An Evaluation of the Economic, Environmental and Social Impacts of NSW DPI Investments in IPM Research in Lettuce
Provedor de dados: 31
Autores: Orr,   Leanne M.; McDougall,   Sandra; Mullen,   John D.
Research into IPM technologies has been conducted by NSW DPI for over 20 years. Evaluating the returns from investment in specific research and development projects is an important component of the NSW DPI science and research program. An economic evaluation has been conducted of IPM in managing invertebrate pests in lettuce in NSW. We found that there has been widespread adoption of IPM practices amongst NSW lettuce growers leading to a flow of economic benefits to the lettuce industry and the community. Important environmental and human health benefits were also identified. A benefit-cost ratio of 2 was calculated for the return to NSW DPI investment in lettuce IPM research which while satisfactory, is lower than returns calculated for other agricultural...
Tipo: Report
Palavras-chave: Research; Benefit-cost; Evaluation; IPM (Integrated Pest Management); Lettuce; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Production Economics; Q160.
Ano: 2008
URL: http://purl.umn.edu/45631

Returns to investment in IPM research in lettuce by NSW DPI
Provedor de dados: 31
Autores: Orr,   Leanne M.; McDougall,   Sandra; Napier,   Tony; Mullen,   John D.
Research into IPM technologies has been conducted by NSW DPI for over 20 years. Evaluating the returns from investment in specific research and development projects is an important component of the NSW DPI science and research program. An economic evaluation has been conducted of IPM in managing invertebrate pests in lettuce in NSW. We found that there has been widespread adoption of IPM practices amongst NSW lettuce growers leading to a flow of economic benefits to the lettuce industry and the community. Important environmental and human health benefits were also identified. A benefit-cost ratio of 2 was calculated for the return to NSW DPI investment in lettuce IPM research which while satisfactory, is lower than returns calculated for other agricultural...
Tipo: Conference Paper or Presentation
Palavras-chave: Research; Benefit-cost; Evaluation; IPM (Integrated Pest Management); Lettuce; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/94283