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Registros recuperados: 40
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A Reappraisal of the Role of Agriculture in Economic Growth in Melanesian Countries AgEcon
Fleming, Euan M.; Fleming, Pauline.
Fortunes in the agricultural sectors of four of the largest South Pacific countries are traced in recent decades by estimating the single factoral terms of trade index. The single factoral terms of trade are measured for agriculture in four Melanesian countries-Fiji, Papua New Guinea, Solomon Islands and Vanuatu-over the period, 1970 to 2002. This index provides a useful method to assess changes in returns to factors employed in agricultural production in these countries. Except in Solomon Islands, farmers experienced a deteriorating index, indicating that they have reaped progressively lower returns to their resources. In Solomon Islands, returns to resources are shown to have increased slightly. A sustained contribution by the agricultural sector to...
Tipo: Conference Paper or Presentation Palavras-chave: Factoral terms of trade; Melanesia; Smallholders; Total factor productivity; International Development; D24; O12; O47; Q17.
Ano: 2006 URL: http://purl.umn.edu/25715
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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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An Updated Look at the Recovery of Agricultural Productivity in Sub-Saharan Africa AgEcon
Nin Pratt, Alejandro; Yu, Bingxin.
We analyze the evolution of Sub-Saharan Africa’s agricultural total factor productivity (TFP) over the past 40 years, looking for evidence of recent changes in growth patterns using a nonparametric Malmquist index. Our TFP estimates show a remarkable recovery in the performance of Sub-Saharan Africa’s agriculture during between 1984 and 2003 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, including an overall net reduction in fertilizer use but increased fertilizer use in most of the best-performing countries. Policy changes implemented by African countries between the mid-1980s and the second...
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture; Total factor productivity; Sub-Saharan Africa; Agricultural and Food Policy; Productivity Analysis; D24; Q18.
Ano: 2009 URL: http://purl.umn.edu/51731
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Brazilian Agricultural Productivity and Policy AgEcon
Rada, Nicholas E.; Buccola, Steven T..
Replaced with revised version of poster 07/29/11.
Tipo: Conference Paper or Presentation Palavras-chave: Brazilian agriculture; Embrapa; Input distance function; Stochastic frontier; Total factor productivity; Technical change; Efficiency; International Development; Productivity Analysis; O2; O3.
Ano: 2011 URL: http://purl.umn.edu/103326
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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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Contribution of Wheat Diversity to Total Factor Productivity in China AgEcon
Jin, Songqing; Meng, Erika C.H.; Hu, Ruifa; Rozelle, Scott; Huang, Jikun.
The impact of wheat diversity on the productivity of wheat in China is examined using total factor productivity (TFP) and an instrumental variable approach. TFP in seven key wheat-producing provinces in China shows significant, though variable, growth for all provinces during the period 1982-1995. Analysis of the causes of TFP growth tests alternative taxonomies of wheat diversity (named varieties and morphological groups) and three measures of diversity. The analysis shows significant effects of diversity on TFP with results consistent across taxonomies and measures of diversity. Further decomposition of the estimation results confirms the relative magnitude of impact of wheat diversity on TFP growth.
Tipo: Journal Article Palavras-chave: Agricultural productivity; China; Crop diversity; Diversity index; Total factor productivity; Wheat; Crop Production/Industries; Production Economics.
Ano: 2008 URL: http://purl.umn.edu/46555
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CONVERGENCE IN U.S. TFP GROWTH FOR AGRICULTURE: IMPLICATIONS OF INTERSTATE RESEARCH SPILLOVERS FOR FUNDING AGRICULTURAL RESEARCH AgEcon
McCunn, Alan; Huffman, Wallace E..
This paper examines state agricultural total factor productivity (TFP) data, 1950-1982, for evidence of convergence, i.e., TFP growth rates of the future are inversely related to the TFP level at the starting data. After finding evidence of convergence, the paper examines the contributions of public and private R&D to convergence and presents implications for a more efficient organization of public agricultural research. For example, we find that increasing a states own investment in public agricultural research reduces the rate of TFP convergence but larger public investments in surrounding areas that potentially spillin increase the rate of convergence. Also, the results imply that the average rate of convergence in our best fitting model is about...
Tipo: Working or Discussion Paper Palavras-chave: Convergence; Total factor productivity; States; Spillins; Growth; Public research; Agriculture; Research and Development/Tech Change/Emerging Technologies.
Ano: 1998 URL: http://purl.umn.edu/18266
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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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Economic Returns to Public Agricultural Research AgEcon
Fuglie, Keith O.; Heisey, Paul W..
Over the last several decades, the U.S. agricultural sector has sustained impressive productivity growth. The Nation's agricultural research system, including Federal-State public research as well as private-sector research, has been a key driver of this growth. Economic analysis finds strong and consistent evidence that investment in agricultural research has yielded high returns per dollar spent. These returns include benefits not only to the farm sector but also to the food industry and consumers in the form of more abundant commodities at lower prices.
Tipo: Report Palavras-chave: Agriculture; Productivity; Productivity growth; Technology; Total factor productivity; TFP; Research investments; Food; Input; Output; Crop yield; Agricultural research; Agricultural output; Public spending; Private sector research; ERS; USDA; Production Economics; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007 URL: http://purl.umn.edu/6388
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Eficiência técnica na produção de manga em Petrolina (PE). Repositório Alice
FERREIRA, C. B.; ARAÚJO, J. A.; LIMA, J. R. F. de.
Neste estudo será abordada a produção total dos fatores (PTF) na produção de manga no semiárido brasileiro, em específico no Vale do Submédio São Francisco. A maior demanda por produtos agroalimentares de qualidade vem ocasionando mudanças significativas no comportamento da oferta de frutas no mundo inteiro. Neste contexto se encaixa o Vale; entre os produtos cultivados nessa região, a manga se destaca como um dos mais importantes. Em virtude da necessidade de identificar os componente s de eficiência técnica (ET) na produção de manga no Vale do Submédio São Francisco, o artigo tem como objetivo analisar o nível de eficiência técnica dos produtores de manga do Distrito de Irrigação Senador Nilo Coelho em Petrolina (PE). O estudo das variáveis deu-se também...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Produção; Mangifera indica; Economia; Manga; Mango; Total factor productivity; Stochastic frontier.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1004755
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Food Safety Regulation and Firm Productivity: Evidence from the French Food Industry AgEcon
Requillart, Vincent; Nauges, Celine; Simioni, Michel; Bontemps, Christophe.
The purpose of this article is to assess whether food safety regulations imposed by the European Union in the 2000s may have induced a slow-down in the productivity of firms in the food processing sector. The impact of regulations on costs and productivity has seldom been studied. This article contributes to the literature by measuring productivity change using a panel of French food processing firms for the years 1996 to 2006. To do so, we develop an original iterative testing procedure based on the comparison of the distribution of efficiency scores of a set of firms. Our results confirm that productivity decreased in the poultry processing industry at the time when safety regulation was reinforced.
Tipo: Presentation Palavras-chave: Total factor productivity; Safety regulation; Food processing sector; Panel data; Non-parametrics; Food Consumption/Nutrition/Food Safety; C14; D24; L66.
Ano: 2012 URL: http://purl.umn.edu/124378
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Getting Implicit Shadow Prices Right for the Estimation of the Malmquist Index: The Case of Agricultural Total Factor Productivity in Developing Countries AgEcon
Nin Pratt, Alejandro; Yu, Bingxin.
The Malmquist index has become extensively used in international comparisons of agricultural productivity since it does not require prices for its estimation, which are normally not available. However, the DEA approach used to estimate this index still uses implicit price information. This entails potential problems because these methods are susceptible to the effect of data noise, and shadow prices can prove to be inconsistent with prior knowledge on cost shares. In this paper we analyze implicit input shadow shares used in the DEA approach to estimate agricultural productivity using the Malmquist index for 72 developing countries. We then set bounds to the implicit input shares introducing information on their likely value and compare constrained and...
Tipo: Conference Paper or Presentation Palavras-chave: Malmquist; Shadow prices; Total factor productivity; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods; D2.
Ano: 2009 URL: http://purl.umn.edu/51797
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Has Green Revolution Bypassed Coarse Cereals? The Indian Experience AgEcon
Janaiah, Aldas; Achoth, Lalith; Bantilan, Ma Cynthia S..
This paper analysed the growth performance of non-rice crop sectors by estimating total factor productivity (TFP) growth for the selected coarse cereals viz., maize, sorghum and pearl millet in India. The analysis indicates that the TFP growth contributed substantially to the output growth of coarse cereals over the past three decades. The TFP growth was higher in those states where coverage of irrigation was relatively high. TFP grew at an average of 1.4 percent per annum through out the Green Revolution (GR) period for sorghum in the sate of Maharashtra where about half of the India’s sorghum area is concentrated mostly under rainfed conditions. Although small in absolute terms over the past three decades, the overall findings suggest that GR...
Tipo: Journal Article Palavras-chave: Total factor productivity; Coarse cereals; Green revolution; Adoption rate; India; International Development.
Ano: 2005 URL: http://purl.umn.edu/110142
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Has growth in productivity in Australian broadacre agriculture slowed? AgEcon
Sheng, Yu; Mullen, John D.; Zhao, Shiji.
Agricultural productivity growth has been strong relative to other sectors in the Australian economy, and relative to the agricultural sectors of other developed countries. However, as commonly observed among other developed economies, growth in productivity in the broadacre sector of Australian agriculture seems to have slowed in the past decade. This paper uses the adjusted cumulative sum square (CUSQ) index to examine the trend stability of total factor productivity in Australian broadacre agriculture over the period 1952-53 to 2006-07. The results show that a significant slowdown occurred around the mid-1990s. Further analysis shows that the slowdown in productivity growth is driven by a longterm decline in public R&D investment in addition to poor...
Tipo: Conference Paper or Presentation Palavras-chave: Total factor productivity; Structural change analysis; CUSUM index; Crop Production/Industries; Farm Management.
Ano: 2010 URL: http://purl.umn.edu/59266
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Is the Share of Agricultural Maintenance Research Rising? AgEcon
Sparger, John Adam; Heisey, Paul W.; Alwang, Jeffrey Roger; Norton, George W..
This study measures the amount of agricultural research engaged in maintenance research for commodities and non-commodities. The percentage of commodity based maintenance research has risen from roughly 35% in 1986 to 41% in 2008. The percentage of non-commodity based agricultural research is roughly 29%. Additionally, an empirical model is developed to explain maintenance research expenditures. The influences of agricultural research funding, climatic conditions, pest and pathogen control, and agricultural production on maintenance research expenditures are tested in the long and short run. Each category has a statistically significant impact on maintenance research expenditures.
Tipo: Conference Paper or Presentation Palavras-chave: Maintenance research; Research depreciation; Agricultural research; Total factor productivity; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/61302
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Land Quality in an International Comparison: It's Importance in Measuring Productivity AgEcon
Nehring, Richard F.; Ball, V. Eldon; Breneman, Vincent E..
The purpose of this paper has been to present quality-adjusted values for land in the United States and nine European countries using price and quantity data for 1990. Disregarding such differences in the quality-adjusted land input would generate biased estimates of the land input and thus of total factor productivity. Land quality adjustments could potentially be enhanced further with additional data on soil characteristics, climate, and other productivity-related characteristics.
Tipo: Conference Paper or Presentation Palavras-chave: Total factor productivity; Hedonic techniques; Soil stress; Quality-adjusted land; Productivity Analysis.
Ano: 2002 URL: http://purl.umn.edu/24910
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Livestock in China: Commodity specific total factor productivity decomposition using new panel data AgEcon
Rae, Allan N.; Ma, Hengyun; Huang, Jikun; Rozelle, Scott.
Studies of total factor productivity in livestock production are rare, but when available provide useful information especially in the context of developing countries such as China where livestock is becoming more important in the domestic agricultural economy. We estimate total factor productivity (TFP) for four major livestock products in China employing the stochastic frontier approach, and decompose productivity growth into its technical efficiency and technical progress components. Efforts are made to adjust and augment the available livestock statistics. The results show that growth in TFP and its components varied between the 1980s and the 1990s as well as over production structures. While there is evidence of considerable technical innovation in...
Tipo: Conference Paper or Presentation Palavras-chave: Stochastic production frontier; Total factor productivity; Technical efficiency and progress; China; Livestock; Adjusted panel data; Livestock Production/Industries; D240; Q100; Q160.
Ano: 2005 URL: http://purl.umn.edu/19527
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LIVESTOCK PRODUCTIVITY IN CHINA: DATA REVISION AND TOTAL FACTOR PRODUCTIVITY DECOMPOSITION AgEcon
Ma, Hengyun; Rae, Allan N.; Huang, Jikun.
Studies of total factor productivity in livestock production are rare, but when available provide useful information especially in the context of developing countries such as China where livestock is becoming more important in the domestic agricultural economy. We estimate total factor productivity (TFP) for four major livestock products in China and by employing the random coefficient frontier approach, decompose productivity growth into its technical efficiency and technical progress components. Efforts were made to adjust and augment the available livestock statistics. The results show that growth in TFP and its components varied between the 1980s and the 1990s as well as over production structures. While there is evidence of considerable technical...
Tipo: Working or Discussion Paper Palavras-chave: Random coefficient approach; Total factor productivity; Technical efficiency and progress; China; Livestock.; Q100; Q160; Productivity Analysis; D240.
Ano: 2004 URL: http://purl.umn.edu/23691
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MEASUREMENT OF AGRICULTURAL TOTAL FACTOR PRODUCTIVITY GROWTH INCORPORATING ENVIRONMENTAL FACTORS: A NUTRIENTS BALANCE APPROACH AgEcon
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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Measuring Male-Female Productivity Differentials in Ethiopian Agriculture: Policy Implications for Improving the Livelihood of Female Farmers AgEcon
Ehui, Simeon K.; Yadeta, Kenea; Paulos, Zelekawork; Teklewold, Hailemariam.
An understanding of the efficiency with which women farmers are operating, particularly where they account for the largest share of the labor force required for agricultural production, is essential for designing appropriate policies to improve the overall performance of agriculture as well as the livelihood of women farmers. This paper contributes to the gender productivity debate by drawing on crop production data collected in three districts (Ada, Akaki and Gimbichu) in East Shoa, Ethiopia during the 1999/2000 cropping season through detailed multi-visit surveys of 80 farm households of which 39 were female-headed households. Using the Tornqvist-Theil index, Total factor productivity (TFP) is measured to analyze crop production efficiency differentials...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural efficiency; Total factor productivity; Gender; Ethiopian agriculture; Labor and Human Capital; D2; Q12; Q18.
Ano: 2006 URL: http://purl.umn.edu/25782
Registros recuperados: 40
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