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| Registros recuperados: 46 | |
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| Dhungana, Basanta R.; Nuthall, Peter L.; Nartea, Gilbert V.. |
| Efficiency has been proven to be an important managerial tool in improving total factor productivity in agriculture. The four sources of economic inefficiency: allocative, technical, pure technical and scale inefficiency of a sample of seventy-six Nepalese rice farmers were examined using the data envelopment analysis (DEA) decomposition method. The inefficiency indices computed by the DEA were then used as the dependent variable in a Tobit (censored) regression model using decision- makers’ attributes as the explanatory variables. The results revealed relatively large inefficiencies among the farms sampled. The average economic, allocative, technical, pure technical and scale inefficiencies were 34%, 13%, 24%, 18%, and 7% respectively. There is also a... |
| Tipo: Presentation |
Palavras-chave: Efficiency; Frontier; DEA; Rice farming; Tobit regression; Socioeconomic attributes; Risk attitude; Crop Production/Industries. |
| Ano: 2000 |
URL: http://purl.umn.edu/123630 |
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| Hoang, Viet-Ngu; Coelli, Tim J.. |
| This paper develops a new measure of total factor productivity growth in agricultural production which incorporates environmental effects. The new measure is called the Total Factor Nutrient-Orientated Productivity (TFNP) Index, and incorporates a materials balance condition. TFNP measures changes in nutrient-orientated efficiency and can be decomposed into efficiency change (EC), technological change (TC) and nutrient-orientated technological change (NTC) components. An empirical analysis, involving country-level data from OECD countries during 1990-2003, is provided using DEA methods. Estimates of mean technical and nutrient-orientated efficiency are 0.798 and 0.526, respectively. Estimated mean TFNP growth is 1.5% per year, with nutrient-orientated... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Total factor productivity; Environment; Nutrient balance; DEA; Productivity Analysis; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/47636 |
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| Macedo, Marcelo Alvaro da Silva; Cipola, Fabricio Carvalho; Ferreira, Francisco Ritter. |
| A importância das questões sócio-ambientais nas empresas advém da crescente demanda, por parte da sociedade, de informações a respeito dos impactos que as atividades empresariais exercem sobre os trabalhadores, a comunidade e o meio ambiente. Ou seja, a sociedade passa a cobrar das empresas uma consciência social corporativa, que representa o nível de compromisso com a busca de soluções para os problemas sócio-ambientais existentes. A partir daí as empresas começaram a ter que provar que o seu custo-benefício é positivo, porque agrega valor à economia e à sociedade, porque respeita os direitos humanos de seus colaboradores e, ainda, porque desenvolve todo o seu processo operacional sem agredir o meio ambiente. É neste contexto que se insere este trabalho,... |
| Tipo: Presentation |
Palavras-chave: Desempenho Sócio-ambiental; Agronegócio; DEA; Social and Environmental Performance; Agribusiness; Agribusiness; Environmental Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/118705 |
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| Souza, Daniel Pacifico Homem de; Alves, Eliseu Roberto de Andrade. |
| Dois critérios foram utilizados para testar três métodos que estimam a eficiência técnica: o método Varian, a fronteira estocástica e a fronteira não-paramétrica, na literatura inglesa conhecida por “data envelopment analysis-DEA” e, em português, por encapsulamento de dados. A orientação pode ser para produto ou insumo, com vistas em mudar a combinação usada pelo produtor para outra, de acordo com algum critério de escolha. O trabalho se fixou em ambas as orientações. Dados de uma amostra de produtores de leite foram usados para avaliação dos métodos. O menor distúrbio na proposta de combinação de produtos ou insumos, em relação àquela usada pelos produtores, e o maior acréscimo da renda líquida constituem os critérios. Quando houver conflitos entre eles,... |
| Tipo: Journal Article |
Palavras-chave: Eficiência técnica; DEA; Fronteira estocástica; Método Varian; Critérios de avaliação.; Production Economics. |
| Ano: 2003 |
URL: http://purl.umn.edu/56826 |
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| Abatania, Luke N.; Hailu, Atakelty; Mugera, Amin W.. |
| Crop production is the main source of livelihood for households in Northern Ghana. The government is committed to improving crop production and knowledge about the technical efficiency of crop farms is essential in guiding policy decisions. This paper examined the technical efficiency of 189 crop farms in Northern Ghana using data envelopment analysis (DEA) with bootstrapping. We found that bias-corrected average technical efficiency of the sample farms is 77.26%. The estimated scale efficiency is 94.21%. In a second stage regression, we found that hired labour, geographical location of farms, gender and age of head of household significantly affect technical efficiency. Policy implications of the results are discussed. |
| Tipo: Presentation |
Palavras-chave: Technical efficiency; DEA; Bootstrap; Ghana; OLS regression.; Farm Management. |
| Ano: 2012 |
URL: http://purl.umn.edu/124211 |
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| Campos, Samuel Alex Coelho; Ferreira Neto, Jose Ambrosio. |
| This paper aimed to evaluate the technical efficiency of milk producers in the Projeto de Assentamento (PA) Feliz União, municipality of Lagoa Grande, MG. To this collected data to some of the milk production of 23 settlers in 2007 and later was used as analytical tools used Data Envelopment Analysis (DEA) to assess the technical efficiency of producers. The results show that the majority of producers (84%) are technically inefficient. Of inefficient farmers, 87% are operating under increasing returns to scale and 13% operating under diminishing returns to scale. Analyzing it is efficient and inefficient producers are mainly realizes that efficient producers are more intensive factor in the labor force and have herd dairy specialist for the activity.... |
| Tipo: Journal Article |
Palavras-chave: Rural settlement; DEA; Milk; Minas Gerais; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/53855 |
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| Soboh, Rafat; Oude Lansink, Alfons G.J.M.; van Dijk, Gert. |
| Providing a performance measure of any firm is a crucial issue, not only for the stakeholders of the firm, but also for policy makers, labor unions, and economists. The relevant performance measures should consider the objectives of the firm’s owners. The ownership structure of cooperatives is different from that of investors owned firms, which in principle implies the need of different tools to measure their performance. Typically, however, the performance of cooperatives and investor owned firm is mostly compared using the same approach. In this study, we use Data Envelopment Analysis (DEA) to compare the performance of dairy cooperatives and investor owned firms in major European dairy producing countries using a traditional approach, which views both... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: DEA; Hyperbolic efficiency; Cooperatives; Investor Owned Firms; Bootstrapping; Agricultural and Food Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/58132 |
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| Campos, Samuel Alex Coelho; Neto, Jose Ambrosio Ferreira; Amodeo, Nora Beatriz Presno. |
| Este trabalho objetivou avaliar a eficiência técnica entre os produtores de leite da no PA Fruta D’Anta, no município de João Pinheiro, MG, no ano de 2006. Utilizou-se como instrumental analítico a Análise Envoltória de Dados (DEA), contando com uma amostra de 22 produtores assentados. Os resultados obtidos evidenciam que uma proporção significativa dos produtores são ineficientes tecnicamente. Observou-se, também, que todos os produtores ineficientes estão trabalhando sob retornos crescentes à escala, o que permite afirmar que estes poderiam aumentar seu lucro mais que proporcional quando aumentada à produção.-----------------The main objective of this paper was to evaluate the technical efficiency in 22 milk producers in the PA FrutaD’Anta, in the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Assentamentos rurais; DEA; Produção de leite; Minas Gerais; Rural settlement; Milk production; DEA. Minas Gerais; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/107922 |
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| Tang, Yao-yan; Cai, Dui. |
| On the basis of summarizing some literatures regarding research of agricultural production efficiency by using DEA at home, we conduct empirical analysis on agricultural production efficiency in 18 cities or counties of Hainan Province in the year 2002, 2005 and 2008 by using DEA model. The results show that in 2005 Hainan Province suffered from unusual drought and windstorm, which made the effective value of agricultural production in all cities or counties relatively low; the regions with DEA effectiveness of agricultural production in the year 2002, 2005 and 2008 were Qionghai City, Tunchang County, Lingao County, Danzhou City, Qiongzhong County and Baisha County. Haikou City, Wuzhishan City and Baoting County in the year 2002, Lingshui County in the... |
| Tipo: Journal Article |
Palavras-chave: DEA; Agricultural production efficiency; Hainan Province; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/113478 |
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| Graham, Mary. |
| Technical efficiency has been widely studied in the literature, but in its pursuit, many of the inputs used can impact on the environment. Environmental effects can be modelled as undesirable output or, as has been the case in more recent studies, as conventional inputs. This paper examines the concept of environmental efficiency and how it can be used to evaluate the performance of Australian dairy farming, using nitrogen surplus, arising from excessive applications of fertilizer, as a detrimental input. Farming promotes the image of clean and green production and if this image is to be maintained, there is a need to ensure activities are environmentally friendly |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Efficiency; Detrimental inputs; Nitrogen surplus; DEA; Environmental Economics and Policy; Farm Management. |
| Ano: 2004 |
URL: http://purl.umn.edu/58450 |
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| Ortner, Karl M.. |
| Pure Technical Efficiency scores of Austrian dairy farms are estimated econometrically on the basis of data envelopment analysis and bootstrapping. In a second stage, using the same assumptions on the distribution of error terms, the distances of farms to their production possibility curve are estimated as functions of farm attributes. Since some of these attributes refer to natural conditions which are more or less unfavourable, the farms in the sample are facing individual frontiers. The distinction between sectorial and individual frontiers gives rise to a distinction between “overall” and “firm-level” efficiency. Using overall efficiency for the calculation of possible savings from a move to the frontier will overestimate these savings and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: DEA; Efficiency; Dairy farms; Farm Management; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/44371 |
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| Registros recuperados: 46 | |
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