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Registros recuperados: 156
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A Non-Parametric Analysis of Rice Production Efficiency in Sri Lanka AgEcon
Thibbotuwawa, Manoj; Mugera, Amin W.; White, Benedict.
This article investigates the production efficiency of rice farming in Sri Lanka using cross section survey data of 90 farms. Past studies on rice farming have mostly focused on technical efficiency (TE). Here, we examine technical efficiency, allocative efficiency (AE) and cost efficiency (CE) using the data envelopment analysis (DEA) approach. On average, the farms were 87% technically efficient; irrigated farms were more efficient (88%) than rain-fed farms (82%). Average cost, allocative and scale efficiencies were 73%, 84% and 87%. Bias corrected TE estimate suggests an expected output expansion of 25% with a given input combination in order to become fully efficient as opposed to 16% based on the original estimates. In addition, a second stage Tobit...
Tipo: Presentation Palavras-chave: Technical efficiency; Cost efficiency; Bootstrap; Rice farming; Sri Lanka; Crop Production/Industries.
Ano: 2012 URL: http://purl.umn.edu/124423
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A parametric approach for evaluating the technical efficiency of the brazilian agricultural sector. Repositório Alice
SOUZA, G. da S. e; GOMES, E. G.; GAZZOLA, R.; WANDER, A. E.; SOUZA, R. da S..
In this study we assessed the technical efficiency of the 27 Brazilian states in the years 1995/96 and 2006. The ata on land and labor were otained from the agricultural census of the two considered periods. Data on credit for investment and running costs were obtained from the Brazilian Central Bank reports. In the analysis we used a DEA CCR model and a stochastic frontier with technical effects. The second model better fit the data, with 99% of correlation between predicted and observed values. The results show that Distrito Federal had the highest technical efficiency in agriculture in 2006 and the second highest in 1995/96. The lowest technical efficiency was found int Piauí in 2006 and in Tocantins in 1995/96. The estimated elasticities show that...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Technical efficiency; Stochastic frontier; Elasticity; Agriculture.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/661472
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A Stochastic Frontier Approach for Measuring Technical Efficiencies of Date Farms in Southern Tunisia AgEcon
Belloumi, Mounir; Matoussi, Mohamed Salah.
The main objective of this research is to compare estimates of technical efficiency obtained from the stochastic frontier approach for two samples of farmers of private and water user associations in the Nefzaoua Oases region (Tunisia), which are characterized by a severe scarcity of water and especially a high degree of salinity. Technical inefficiency effects are modeled as a function of farm-specific socioeconomic factors. Results suggest that both systems are technically inefficient. On average, the private system is found to be slightly more efficient than the associative one. Date yield could be explained mainly by four variables: water quantity applied per palm tree, labor per palm tree, phosphate per palm tree, and water salinity. Output...
Tipo: Journal Article Palavras-chave: Salinization; Private and GIC systems; Technical efficiency; Nefzaoua oases; Date production; Groundwater management; Farm Management; Productivity Analysis.
Ano: 2006 URL: http://purl.umn.edu/10221
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A Stochastic Production Investigation of Fish Farms in Ghana AgEcon
Onumah, Edward E.; Acquah, H. de-Graft.
This paper considers the stochastic production frontier approach to analyse the technical efficiency and its determinants of fish farms in Ghana using a cross-section data of 150 farms. It considers the explicit effects of family and hired labour on production by setting the log-value of the zero-observation of these two sources of labour to zero with dummy variables. Results demonstrate that expected elasticities of mean output with respect to all input variables are positive and significant. Findings also show that family and hired labour used for fish farming in Ghana may be equally productive. Fish farms in Ghana are revealed to be characterised by technology with increasing return to scale. The combined effects of operational and farm specific factors...
Tipo: Journal Article Palavras-chave: Technical efficiency; Stochastic frontier; Elasticity; Return to scale; Farm Management; Productivity Analysis; GA; IN.
Ano: 2011 URL: http://purl.umn.edu/109738
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A Study of Dairy Farm Technical Efficiency Using Meta-Regression: An International Perspective Chilean J. Agric. Res.
This paper develops a meta-regression analysis to explain the variation of mean technical efficiency (PETP) measurements from a total of 65 frontier studies that report technical efficiency (ET) measurements at the dairy farm level in the literature published in English and Spanish. The analysis includes the effect of methodology on ET measurements, as well as the effect of the econometric procedure on the meta-regression estimates. Eight models were estimated, and two of these were selected: a fixed effects specification with dummy variables for the most significant studies without geographical effects (EFS), and a specification where the multiple observations are averaged and geographical effects included (OP). Based on model performance, the EFS option...
Tipo: Journal article Palavras-chave: Meta-regression; Frontier models; Technical efficiency; Dairy farms.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200011
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A Two-Stage Value Chain Model for Vegetable Marketing Chain Efficiency Evaluation: A Transaction Cost Approach AgEcon
Lu, Hualiang.
We applied a two-stage value chain model to investigate the effects of input application and occasional transaction costs on vegetable marketing chain efficiencies with a farm household-level data set. In the first stage, the production efficiencies with the combination of resource endowments, capital and managerial inputs, and production techniques were evaluated; then at the second stage, the marketing technical efficiencies were determined under the marketing value of the vegetables for three typical marketing chains in Nanjing area, P.R. China. The impacts of the transaction costs to the supply chain technical efficiency both at the production and marketing stages were examined by using Tobit model. Study showed that transaction costs significantly...
Tipo: Conference Paper or Presentation Palavras-chave: Two-stage value chain model; Data envelopment analysis; Technical efficiency; Transaction cost; Vegetable; China; Industrial Organization; D1; D8; Q13; Q18.
Ano: 2006 URL: http://purl.umn.edu/25327
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Allocative Efficiency of Technically Inefficient Production Units AgEcon
Bogetoft, Peter; Fare, Rolf.
We discuss how to measure allocative efficiency without presuming technical efficiency. This is relevant when it is easier to introduce reallocations than improvements of technical efficiency. We compare the approach to the traditional one of assuming technical efficiency before measuring allocative efficiency. In particular, we develop necessary and sufficient conditions on the technology to ensure consistent measures and we give dual organizational interpretations of the approaches.
Tipo: Working or Discussion Paper Palavras-chave: Technical efficiency; Allocative efficiency; Homethetic technologies; Slack consumption; Research and Development/Tech Change/Emerging Technologies.
Ano: 1999 URL: http://purl.umn.edu/24217
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An Analysis of Scope Economies and Specialisation Efficiencies Among Thai Shrimp and Rice Smallholders AgEcon
Mekhora, Thamrong; Fleming, Euan M..
Smallholders increasingly combine shrimp culture with the more traditional rice enterprise in regions of Thailand suitable for raising shrimps. They can exploit cost complementarities in production by combining activities in these enterprises within their farming systems. At the same time, it makes them more susceptible to on-farm negative externalities between rice and shrimp production, in both directions, causing scope diseconomies. A stochastic input distance model is estimated using data on shrimp and rice production by 52 smallholder households. Results from the estimated model are used to establish whether scope economies or diseconomies exist and whether specialisation in either shrimp or rice production significantly influences technical...
Tipo: Working or Discussion Paper Palavras-chave: Scope economies; Specialisation efficiencies; Input distance function; Thailand; Smallholders; Technical efficiency; Crop Production/Industries; Farm Management; Livestock Production/Industries.
Ano: 2004 URL: http://purl.umn.edu/12914
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An Analysis of the Technical Efficiency of Cotton Farmers in the Punjab province in Pakistan AgEcon
Hussain, Muhammad Sajid; Coelli, Tim J.; Simmons, Phil.
In this paper we analyse the technical efficiency of cotton farmers in the Punjab Province in Pakistan. Technical efficiency is measured relative to a stochastic frontier production function (SFPF). The estimated model includes a function in which technical efficiency is made an explicit function of firm specific factors (involving the levels of education and experience of farmers and other factors). For the purpose of analysis, survey data was collected for the 1996-97 season. Analysis is done on a district basis and the mean technical efficiencies obtained are 76, 78, 77 and 83 per cent for the districts of Arifwala, Bahawalpur, Multan and Rahim Yar Khan respectively. This study suggests that there is considerable room for productivity gains for the...
Tipo: Presentation Palavras-chave: Technical efficiency; Stochastic production frontier; And cotton farms.; Crop Production/Industries; Productivity Analysis.
Ano: 1999 URL: http://purl.umn.edu/123815
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An Evaluation of the Organic Cotton Marketing Opportunity AgEcon
Funtanilla, Margil; Lyford, Conrad P.; Wang, Chenggang.
The organic cotton market has been growing internationally and presents a potential opportunity for producers. This article evaluates prices and returns for organic cotton production in Texas using a stochastic frontier approach. Organic producers were found to be more profitable relative to conventional production, but the analysis showed that organic producers were relatively less technically efficient.
Tipo: Conference Paper or Presentation Palavras-chave: Organic cotton; Production frontier; Technical efficiency; Production Economics.
Ano: 2009 URL: http://purl.umn.edu/49359
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An Investigation of Production Risk, Risk Preferences and Technical Efficiency: Evidence From Rainfed Lowland Rice Farms in the Philippines AgEcon
Villano, Renato A.; O'Donnell, Christopher J.; Battese, George E..
Risk plays a vital role in farmers' decisions on input allocations and, therefore, output supply. This paper provides empirical evidence on the estimation of production risk, risk preferences and technical inefficiency. An eight-year panel data set is used for 46 rice farmers from a representative rainfed lowland environment in Central Luzon, Philippines. The heteroskedastic and stochastic frontier frameworks are reconciled and extended to accommodate the risk preferences of farmers in an analysis of production risk. Results show that technical inefficiency is overstated in risky production environments where farmers are risk-averse.
Tipo: Working or Discussion Paper Palavras-chave: Production risk; Risk preferences; Technical efficiency; Productivity Analysis; Risk and Uncertainty.
Ano: 2005 URL: http://purl.umn.edu/12953
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ANÁLISE DE EFICIÊNCIA TÉCNICA E IDENTIFICAÇÃO DO PERFIL GERENCIAL DE PRODUTORES RURAIS AgEcon
Vivan, Antonio Marcos; Sette, Ricardo de Souza.
The technical efficiency indexes for the rural producer from the central region of Santa Catarina’s western side have been identified, thus enabling to determine their managerial profile through the evaluation of processes of decision-making in the properties, administration of agricultural business firms, strategical behaviour, time management, and information transferences. Moreover, the inter-relation among efficient enterprises and managerial ability, and vice-versa, was also verified. The methodology used in the qualitative analysis was the Data Envelopment Analysis-DEA, and the data used for such analysis were gathered by means of a semi-structured questionnaire. Twelve out of the fifty-eight analyzed properties did reach the efficiency frontier,...
Tipo: Journal Article Palavras-chave: Technical efficiency; Managerial ability; DEA..
Ano: 2001 URL: http://purl.umn.edu/43364
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Analysis of farm household technical efficiency in Northern Ghana using bootstrap DEA AgEcon
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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Analysis of Technical Efficiency and Varietal Differences in Pistachio Production in Iran Using a Meta-Frontier Analysis AgEcon
Boshrabadi, Hossain Mehrabi; Villano, Renato A.; Fleming, Euan M..
This paper reports on an analysis of technical efficiency and varietal differences in pistachio production in Iran. A random sample of 475 farmers was selected from the province of Kerman in 2003 and 2004. In this study, farmers are classified into three groups according to the variety of tree they planted. The three main varieties of pistachio trees planted are Kalleh- Ghuchi, Fandoghi and Akbari. The technical efficiency indices are computed using three approaches. First, a standard stochastic production frontier was employed using pooled data. Secondly, stochastic frontier production functions were estimated for each variety (separately). Lastly, the meta-frontier approach was used because production varieties and technologies are expected to differ...
Tipo: Conference Paper or Presentation Palavras-chave: Pistachio; Stochastic meta-frontier; Production function; Technical efficiency; Iranian agriculture; Productivity Analysis; C21; Q12; Q16; Q55; R58.
Ano: 2007 URL: http://purl.umn.edu/10425
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ANALYSIS OF THE TECHNICAL EFFCIENCY OF THE STOCHASTIC FRONTIER PRODUCTION FUNCTION IN FOREST FARMING NICARAGUA 1998-2005 AgEcon
Zúniga-González, Carlos Alberto.
Presented at: UNIVERSITIES NATIONAL COUNCIL III UNVERSITY SCIENTIFIC CONGRESS 41 ANNIVERSARY OF THE CATHOLIC FARMING LIVESTOCK UNIVERSITY OF THE DRY TROPIC ¨UNIVERSITY, SCIENCE AND TECNOLOGY: A STRATEGY FOR CONFRONTING THE NATIONAL GLOBAL CHALLENGE¨ 23 SEPTEMBER 2009
Tipo: Conference Paper or Presentation Palavras-chave: Stochastic Frontier Production; Forest Police; LSMS-ISA MECOVI; Technical efficiency; Allocative Efficiency.; Productivity Analysis; D61; Q12.
Ano: 2009 URL: http://purl.umn.edu/56197
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Analyzing the Determinants of Technical Efficiency Among Traditional Dairy Farms in Wisconsin: A Quantile Regression Approach AgEcon
Chidmi, Benaissa; Solis, Daniel; Funtanilla, Margil; Cabrera, Victor E..
This study analyzes the determinants of TE among traditional dairy farms in the State of Wisconsin taking into account dairy farms’ heterogeneity. To do so, we first estimate a production frontier and the level of TE using the SPF framework. Then we analyze the determinants of TI using a quantile regression analysis. The results indicate that the determinants of TE affect in very specific ways farmers with different levels of TE. This result confirms our hypothesis on the importance of controlling for farm heterogeneity when analyzing the determinants of TE. This issue is also important from an empirical point of view. Policy makers could improve the effectiveness of their work by targeting specific agricultural services and aid designed for farmers with...
Tipo: Conference Paper or Presentation Palavras-chave: Technical efficiency; Dairy; Quantile regression; Agribusiness; Agricultural and Food Policy; Marketing; Production Economics; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/61320
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Analyzing the impact of direct subsidies on the performance of the Greek Olive Farms with a non-monotonic efficiency effects model AgEcon
Zhu, Xueqin; Karagiannis, Giannis; Oude Lansink, Alfons G.J.M..
We analyse the impacts of the CAP reforms on technical efficiency of Greek olive farms. We use a production frontier function and a non-monotonic inefficiency effects model which incorporates the influences of exogenous variables on the mean and the variances of farm efficiency. We formulate policy variables (e.g. the direct subsidies) and farm characteristics as explanatory variables in the inefficiency effects model. We use the 1995-2004 FADN data to estimate the production frontier, to derive technical efficiency, and to determine the effects of the explanatory variables. The study shows that the 10-year average technical efficiency of olive farms is 69%. Direct transfers have a negative and monotonic effect on technical efficiency, while the degree of...
Tipo: Conference Paper or Presentation Palavras-chave: Technical efficiency; The CAP reform; Non-monotonic inefficiency effects; Production frontier; Olive-farming; Agricultural and Food Policy; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/43612
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Application of a non-parametric method to analyze energy consumption for orange production CIGR Journal
Qasemi Kordkheili, Peyman; Amin Asoodar, Mohammad; Kazemi, Navab.
Due to good climate condition and large cultivation area in Mazandaran province of Iran, orchard commodities products, especially orange production is widely improved in this region.  In this study, Data Envelopment Analysis (DEA) technique was used to analyze the efficiency of farmers, discriminate efficient orchards from inefficient ones and to identify wasteful uses of energy for orange producers in Sari region.  Data were collected using face-to-face surveys from 86 orange orchardists and included the human power, machinery, diesel fuel, chemicals, fertilizer, farmyard manure, water for irrigation and electricity input sources used per hectare of orange production.  The data was organized and analyzed by DEA Techniques.  The results revealed that the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Technical efficiency; Energy saving; Orange production; Sari.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2554
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Assessing the Technical and Allocative Efficiency of Marketing Decisions by U.S. Organic Producers AgEcon
Lohr, Luanne; Park, Timothy A..
We develop measures of technical and allocative efficiency of producers in marketing certified organic products. A stochastic output distance frontier and the associated revenue share equations are estimated using comprehensive U.S. data on certified organic producers. Farm-level measures of technical efficiency are calculated and factors which enhance performance are identified. Factors that systematically influence allocative efficiency are assessed. The revenue mix of organic producers is systematically inefficient as both male and female producers rely too heavily on revenue from organic markets relative to conventional outlets.
Tipo: Conference Paper or Presentation Palavras-chave: Organic farming; Stochastic frontier; Technical efficiency; Allocative efficiency; Farm Management; Marketing; D21; C31; Q01.
Ano: 2011 URL: http://purl.umn.edu/103365
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AUMENTO DA EFICIÊNCIA TÉCNICA NA INDÚSTRIA DE ALIMENTOS DOS ESTADOS BRASILEIROS VIA METAS INTERMEDIÁRIAS AgEcon
Sousa, Alexandre Gervasio; Santos, Ricardo Bruno Nascimento dos; Araujo, Aracy Alves.
Propôs-se, neste artigo, uma busca de alvos, por etapas, com alvos intermediários nas camadas de iso-eficiência para que o Setor de Fabricação de Produtos Alimentícios e Bebidas (SFPAB) de cada estado atinja, de forma gradual, um nível de eficiência técnica mais elevado. Utilizaram-se dados da Pesquisa Industrial Anual (PIA) de 2005 do IBGE. Aplicou-se a análise envoltória de dados (DEA) orientada ao insumo, tendo-se a receita líquida do setor como produto e como insumos o total do custo das operações industriais (COI) e as remunerações do setor (SRO). Dos 18 estados analisados, São Paulo é o mais eficiente e Santa Catarina, o mais ineficiente. Outros 11 estados são tecnicamente ineficientes, de forma que 6 devem, no curto prazo, buscar a camada 1; 5 a...
Tipo: Presentation Palavras-chave: Eficiência técnica; Metas intermediárias; DEA; Produtos alimentícios e bebidas; Technical efficiency; Intermediate goals; DEA; Food and beverage industry; Agribusiness; Industrial Organization.
Ano: 2008 URL: http://purl.umn.edu/118708
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