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Registros recuperados: 8
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Agricultural Productivity and Policies in Sub-Saharan Africa AgEcon
Yu, Bingxin; Nin Pratt, Alejandro.
We analyze the evolution of Sub-Saharan Africa’s agricultural total factor productivity (TFP) over the past 45 years, looking for evidence of recent changes in growth patterns using an improved nonparametric Malmquist index. Our TFP estimates show a remarkable recovery in the performance of Sub-Saharan Africa’s agriculture between 1984 and 2006 after a long period of poor performance and decline. That recovery is the consequence of improved efficiency in production resulting from changes in the output structure and an adjustment in the use of inputs. Policy interventions, including fiscal, trade and sector specific policies, appear to have played an important role in improving agriculture’s performance. Despite the improved agricultural performance, SSA...
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture; Efficiency; Malmquist index; Total factor productivity; Technical change; Sub-Saharan Africa; Policy; Agricultural and Food Policy; International Development; Productivity Analysis.
Ano: 2011 URL: http://purl.umn.edu/105400
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CAP Reforms and Total Factor Productivity Growth in Belgian Agriculture: A Malmquist Index Approach AgEcon
Coelli, Tim J.; Perelman, Sergio; Van Lierde, Dirk.
Have the 1992 and 2000 CAP reforms had any discernable effect upon agricultural productivity? In this study we derive detailed information on the total factor productivity (TFP) growth of arable farms in Belgium over a 16-year period from 1987 to 2002. Calculations are based on a carefully constructed high-quality detailed farm-level data set containing 1728 observations, involving over 100 farms in most years. Three output variables (cereals, other crops, other outputs) and four input variables (land, labour, capital and other inputs) are constructed, using multilateral Fisher index numbers where crop aggregation is required. The TFP measures are calculated using a Malmquist TFP index relative to a series of data envelopment analysis (DEA) frontiers....
Tipo: Conference Paper or Presentation Palavras-chave: CAP reforms; Belgian agriculture; Total factor productivity; Malmquist index; Shadow shares; Agricultural and Food Policy; Productivity Analysis; C6; D2; O4; Q1.
Ano: 2006 URL: http://purl.umn.edu/25472
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Chinese Regional Agricultural Productivity: 1994-2005 AgEcon
Tong, Haizhi; Fulginiti, Lilyan E.; Sesmero, Juan P..
Replaced with revised version of paper 07/24/09.
Tipo: Journal Article Palavras-chave: TFP growth; Stochastic production frontier; Malmquist index; Provincial TFP.; Productivity Analysis; O4; O5; Q1.
Ano: 2009 URL: http://purl.umn.edu/51784
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Disaggregate Productivity Growth in Livestock Production: A Directional Malmquist Index Approach AgEcon
Ludena, Carlos E.; Hertel, Thomas W.; Preckel, Paul V.; Foster, Kenneth A.; Nin Pratt, Alejandro.
Limited data on the allocation of inputs to different activities has limited agricultural economists' attempts to measure sub-sector productivity growth in agriculture. However, recent developments have enabled us to estimate total factor productivity (TFP) growth for crops and livestock accounting for input-output allocation. This paper extends previous work on TFP measurement for livestock into ruminants and non-ruminant productivity measurement, given the differences in productivity growth rates among these species. The results show that the non-ruminant sector is more dynamic than the ruminant sector, driving most of the productivity growth within the livestock sector. Given the rapid rates of productivity growth observed recently, non-ruminant...
Tipo: Conference Paper or Presentation Palavras-chave: Total factor productivity; Malmquist index; Livestock; Ruminants; Non-ruminants; Productivity Analysis; O47; O57; Q16.
Ano: 2005 URL: http://purl.umn.edu/19395
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Do Field Crop Farms and Mixed Farms of Old and New EU Members Improve Productivity at the Same Rate? A Regional Level Approach AgEcon
Blasejczyk-Majka, Lucyna; Kala, Radoslaw; Maciejewski, Krzysztof.
data contained in the Farm Accounting Data Network (FADN). Analyses covered the first four years following the extension of the European Union in 2004. The adopted units comprised average farms representing 80 regions belonging to eleven countries of EU-15 and four new EU member states. Estimation of the Malmquist total factor productivity (TFP) and its components was conducted using data envelopment analysis, separately for each of the two types of farms taking into consideration their economic size. The main findings concerning the pure technical efficiency change indicate that in the units from the old regions there was a slight improvement for field crop farms and stagnation for mixed farms, and a decrease in the units from the new regions, being...
Tipo: Conference Paper or Presentation Palavras-chave: Data envelopment analysis; Technical efficiency change; Scale efficiency change; Malmquist index; Crop Production/Industries; Productivity Analysis.
Ano: 2011 URL: http://purl.umn.edu/114254
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Efficiency and Productivity in the Spanish Food Distribution Sector AgEcon
Palomares, Rafaela Dios.
This study investigated the efficiency and productivity change of a sample of food distribution units (MERCAs) in Spain over the 1.997-1.999 period, applying non-parametric frontier methodology in a sales efficiency framework. We specified a mean sales model composed of two blocks of variables, the production block, and the marketing management block. Then we applied output oriented DEA methodology to perform the efficiency analysis, also taking into account the overall efficiency decomposition into pure and scale efficiency. The Malmquist index was calculated in order to analyse the components of the productivity change. The mean pure sales efficiency index was high, around 0.8, the mean scale index being 0,9. As appears from the results, six food...
Tipo: Conference Paper or Presentation Palavras-chave: Efficiency; Productivity; DEA method; Malmquist index; Food Distribution Unit; Productivity Analysis.
Ano: 2002 URL: http://purl.umn.edu/24828
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Productivity Growth and Convergence in Crop, Ruminant and Non-Ruminant Production: Measurement and Forecasts AgEcon
Ludena, Carlos E.; Hertel, Thomas W.; Preckel, Paul V.; Foster, Kenneth A.; Nin Pratt, Alejandro.
There is considerable interest in projections of future productivity growth in agriculture. Whether one is interested in the outlook for global commodity markets, future patterns of international trade, or the interactions between land use, deforestation and ecological diversity, the rate of productivity growth in agriculture is an essential input. Yet solid projections for this variable have proven elusive – particularly on a global basis. This is due, in no small part, to the difficulty in measuring historical productivity growth. The purpose of this paper is to report the latest time series evidence on total factor productivity growth for crops, ruminants and non-ruminant livestock, on a global basis. We then follow with tests for convergence amongst...
Tipo: Conference Paper or Presentation Palavras-chave: Malmquist index; Productivity; Convergence; Projections; Crops; Livestock; Productivity Analysis; D24; O13; O47; Q10.
Ano: 2006 URL: http://purl.umn.edu/25392
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Productivity Growth, Technical Efficiency and Technical Change on Minnesota Farms AgEcon
Olson, Kent D.; Vu, Linh.
Changes and trends in farm productivity have been of intense interest to many involved with agriculture. This study used data envelopment analysis (DEA) to estimate the output-oriented Malmquist total factor productivity (TFP) index from panel data for 1993-2006 for farms in Southern Minnesota. Bootstrap methods were used to estimate confidence intervals for the productivity, efficiency change and technical change indices. The model included three inputs (labor, land and immediate expenditures) and six outputs (corn, soybean, milk, hog, beef, and nonfarm income). Productivity growth was found to be positive during the period, with an average annual productivity growth of 6.6 percent. However, TFP growth has been slowing down in recent years and indeed...
Tipo: Conference Paper or Presentation Palavras-chave: Total factor productivity; Farms; Malmquist index; Data envelopment analysis; DEA; Bootstrap; Government subsidies; Farm Management; Productivity Analysis; Q12; C14.
Ano: 2009 URL: http://purl.umn.edu/49204
Registros recuperados: 8
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