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	Provedor de dados AgEcon (35) Autor Wiebe, Keith D. (3) Lerman, Zvi (2) Pender, John L. (2) Sedik, David J. (2) Ahearn, Mary Clare (1) Almeida, Gustavo Calixto Scoralick de (1) Bantilan, Ma Cynthia S. (1) Barrett, Christopher B. (1) Baráth, Lajos (1) Bayard, Budry (1) Binenbaum, Eran (1) Birol, Ekin (1) Bottum, John S. (1) Carter, Colin A. (1) Chen, Jing (1) Chu, Baojin (1) Cuerva Narro, Maria Carmen (1) Damon, Amy L. (1) Decimavilla, Esther (1) Diao, Xinshen (1) Mais... Palavra-chave Agricultural productivity (35) Productivity Analysis (16) Agricultural and Food Policy (11) Land Economics/Use (7) Community/Rural/Urban Development (5) Food Security and Poverty (5) Research and Development/Tech Change/Emerging Technologies (5) Crop Production/Industries (4) Environmental Economics and Policy (4) Q15 (4) Research Methods/ Statistical Methods (4) Agribusiness (3) Agricultural growth (3) Food security (3) International Development (3) International Relations/Trade (3) Q1 (3) Q18 (3) R14 (3) Agrarian reforms (2) Mais... Tipo do documento Conference Paper or Presentation (12) Journal Article (9) Report (8) Working or Discussion Paper (6) Ano 2011 (5) 2010 (1) 2009 (3) 2008 (5) 2007 (1) 2006 (5) 2005 (4) 2004 (2) 2003 (4) 2002 (1) 1999 (2) 1998 (1) 1988 (1) Mais... País United States (35) Idioma Inglês (33) Espanhol (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 35 Primeira ... 1 2 ... Última A Mixed Geographically Weighted Approach to Decoupling and Rural Development in the EU-15 AgEcon Pecci, Francesco; Sassi, Maria. The CAP reform and the recent EC communication aimed at preparing its Health Check emphasise the need for interventions locally based where agricultural policy integrates with a broader policy for rural areas growth. In this context, the paper investigates the possible different sets policy indicators affecting agricultural productivity at the regional level considering spatial heterogeneity by means of a Mixed Geographically Weighted Regression approach. The analysis is based on a set of policy sensitive indicators selected according to the key component of the CAP reform and referred to a sample of 164 EU-15 regions at NUTS2 level. The methodology adopted, new for the empirical literature on the topic, allows for a more accurate understanding of spatial... Tipo: Conference Paper or Presentation Palavras-chave: CAP reform; Agricultural productivity; Spatial analysis; Cluster analysis; Agricultural and Food Policy; Community/Rural/Urban Development; Research Methods/ Statistical Methods. Ano: 2008 URL: http://purl.umn.edu/6625 Agricultural Growth, Poverty Reduction and Millennium Development Goals in Africa: Outcomes of AAAE Conference AgEcon Nambiro, Elizabeth; Omare, Musa N.; Nkamleu, Guy Blaise. This report is a summary of emerging issues affecting African agriculture, recent experiences and policy proposals that can guide interventions in improving the sector’s productivity. Agriculture is at the centre of rural poverty reduction in Africa and urgent measures are needed to increase farm yields and incomes in order to stem collapse of economies and societies. Tipo: Report Palavras-chave: AAAE; African Association of Agricultural Economists; Millennium development goals in Africa; Agricultural policies; Agricultural research systems; Poverty reduction; Agricultural productivity; Agricultural and Food Policy; Community/Rural/Urban Development; Farm Management; Food Security and Poverty; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q010; Q130; Q170; Q180; Q560. Ano: 2008 URL: http://purl.umn.edu/50144 AGRICULTURAL PRODUCTIVITY GROWTH IN CHINA: FARM LEVEL VERSUS NATIONAL MEASUREMENT AgEcon Carter, Colin A.; Chen, Jing; Chu, Baojin. Tipo: Working or Discussion Paper Palavras-chave: Agricultural productivity; China; Productivity Analysis. Ano: 1999 URL: http://purl.umn.edu/11954 Agricultural research and productivity growth in India AgEcon Evenson, Robert E.; Pray, Carl E.; Rosegrant, Mark W.. India’s investments in agricultural research, extension, and irrigation have made it one of the largest publicly funded systems in the world. But some policymakers who perceive that the benefits to research may be declining are advocating a cut back on public spending on research. This research report, which examines the effects of research and development on productivity in India, finds that India is still benefiting from these investments. The main sources of agricultural productivity growth in India during 1956–87 were public agricultural research and extension; expansion of irrigated area and rural infrastructure and improvement in human capital were also important contributors. The report also shows that the public benefits from private research can... Tipo: Report Palavras-chave: Agriculture; Research; India; Agricultural productivity; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies. Ano: 1999 URL: http://purl.umn.edu/37901 Agricultural Resources and Environmental Indicators, 2006 Edition AgEcon Wiebe, Keith D.; Gollehon, Noel R.. This is a large file. We have had reports of problems opening the file in Mozilla Firefox. If you have problems, try using Windows Internet Explorer. Tipo: Report Palavras-chave: ERS; AREI; Agricultural economics; Natural resources; Land; Land use; Land values; Land ownership; Water use; Irrigation; Water quality; Genetic resources; Biotechnology; Agricultural research; Agricultural productivity; Global resources; Soil conservation; Soil erosion; Pest management; Nutrient management; Animal agriculture; Organic agriculture; Conventional agriculture; Conservation policy; Land retirement; Working lands; Wetlands; Farmland protection; Environmental quality; Farm structure; Farm ownership; Farm management decisions; Farm business; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/7207 CLIMATE CHANGE AND AGRICULTURAL PRODUCTIVITY IN SUB-SAHARAN AFRICA: A SPATIAL SAMPLE SELECTION MODEL AgEcon Ward, Patrick S.; Florax, Raymond J.G.M.; Flores-Lagunes, Alfonso. Using data at a high spatial resolution, we estimate a cereal yield response function conditional upon climatological and topographical features using a recently developed estimator for spatial process models when sample selection is of concern. We control for localized spatial correlation in unobserved disturbances affecting both the selection to plant cereals as well as in the resulting conditional yield response. We find that cereal yields across Sub-Saharan Africa will decline with increasing temperatures resulting from global climate change, and that failing to control for sample selection leads to underestimation of these adverse effects. Tipo: Working or Discussion Paper Palavras-chave: Agricultural productivity; Climate change; Spatial econometrics; Sample selection; Generalized method of moments; Land Economics/Use; Productivity Analysis; Research Methods/ Statistical Methods; C31; Q18; C50. Ano: 2011 URL: http://purl.umn.edu/116182 Combining revealed and stated preference methods to assess the private value of agrobiodiversity in Hungarian home gardens AgEcon Birol, Ekin; Kontoleon, Andreas; Smale, Melinda. Hungarian home gardens are small-scale farms managed by farm households using traditional management practices and family labor. They generate private benefits for farmers by enhancing diet quality and providing food when costs of transacting in local markets are high. Home gardens also generate public benefits for society by supporting long-term productivity advances in agriculture. In this paper, we estimate the private value to farmers of agrobiodiversity in home gardens. Building on the approach presented in EPTD Discussion Paper 117 (2004), we combine a stated preference approach (a choice experiment model) and a revealed preference approach (a discrete-choice, farm household model). Both models are based on random utility theory. To combine the... Tipo: Report Palavras-chave: Home gardens; Small-scale farmers; Diet quality; Agricultural productivity; Agrobiodiversity; Household surveys; Private value; Choice experiment model; Farm household model; Revealed and stated preference methods; Biodiversity; Crop Production/Industries. Ano: 2006 URL: http://purl.umn.edu/55415 Consequences of Deforestation for Women’s Time Allocation, Agricultural Production, and Nutrition in Hill Areas of Nepal AgEcon Kumar, Shubh K.; Hotchkiss, David. In the face of growing concerns about the environment, policy makers in developing countries find themselves increasingly pressured to choose between environmental deterioration in the long run and the growing demands of poor populations in the short run. Some environmentalists point to new technology –irrigation, fertilizer, and pesticides- as the basis of ecological decay in rural areas. A number of studies have shown, instead, that expanding farm yields in less fragile area through modern technology offers a viable alternative to stripping the land to expand crop area in marginal soils. In the hill areas of Nepal, as many developing countries, women’s work is the key not only to the functioning of the household but also a necessary supply of field... Tipo: Report Palavras-chave: Women agriculture laborers; Nepal; Agricultural productivity; Deforestation; Economic aspects; Time management; Women fuelwood gatherers; Food supply; Consumer/Household Economics; Labor and Human Capital; Resource /Energy Economics and Policy. Ano: 1988 URL: http://purl.umn.edu/42172 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 Desarrollando mercados rurales: el rol de la incertidumbre y la restricción crediticia AgEcon Escobal D'Angelo, Javier. El estudio evalúa cuáles son los factores más relevantes para que un pequeño productor agrícola demande asistencia técnica con el propósito de incursionar en mercados “dinámicos”; es decir, en mercados que puedan absorber cantidades crecientes de su cultivo. Los resultados muestran que existe un segmento de productores cuya “distancia” a estos mercados no es tan significativa como para que no puedan incursionar en ellos. Sin embargo, restricciones asociadas al grado de organización de los productores, a su percepción del riesgo y a las posibilidades de acceso al mercado de crédito les impiden acceder a los beneficios adicionales que estos mercados ofrecen. Tipo: Working or Discussion Paper Palavras-chave: Mercados agrícolas; Agricultura; Productividad agrícola; Mercado financiero; Asistencia técnica; Desarrollo rural; Perú; Agricultural markets; Agriculture; Agricultural productivity; Financial market; Technical assistance; Rural development; Peru; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Q1; Q13; Q14. Ano: 2005 URL: http://purl.umn.edu/37729 Environmental Perceptions and Behavioral Change of Hillside Farmers: The Case of Haiti AgEcon Bayard, Budry; Jolly, Curtis M.. Land degradation is one of the most serious problems facing resource-poor tropical hillside farmers. Studies examining determinants of farmers’ decisions to invest in land improvement technologies have focused on economic and financial factors, neglecting individuals’ perceptions and awareness of the problems and how they affect land use and behavioral change that enhance environmental sustainability. This study examines Haitian peasants’ environmental behavior structure using a structural equation modeling approach. Specifically, the study examines the effects of perceived susceptibility, seriousness, benefits, and barriers to change on attitude, and the causal effect of attitude on behavior. The influence of the level of resources extracted from the land... Tipo: Journal Article Palavras-chave: Farmers; Environment; Perception; Behaviour and degradation; Agricultural productivity; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Research Methods/ Statistical Methods. Ano: 2007 URL: http://purl.umn.edu/36804 Environmentally Adjusted Agricultural Productivity in the Great Plains AgEcon Rezek, Jon P.; Perrin, Richard K.. This study adjusts 1960-1996 agricultural productivity gains in a panel of Great Plains states to account for the discharge of pesticide and nitrogen effluents into the environment. The agricultural-environmental technology is approximated with translog distance functions that allow us to contrast traditional versus environmentally adjusted productivity gains. Findings indicate technical change has been increasingly biased toward environmentally friendly production. While the environmental adjustment reduced overall productivity gains during the sample period, in recent years adjusted productivity outpaced the traditional measure, reflecting the pro-environment bias in technical change. Tipo: Journal Article Palavras-chave: Agricultural productivity; Distance function; Environmental externalities; Nitrogen; Pesticides; Technical change bias; Environmental Economics and Policy; Productivity Analysis. Ano: 2004 URL: http://purl.umn.edu/31112 EXOGENOUS PRODUCTION SHOCKS AND TECHNICAL EFFICIENCY AMONG TRADITIONAL IVORIEN RICE FARMERS AgEcon Sherlund, Shane M.; Barrett, Christopher B.. This paper uses a unique panel data set and data envelopment analysis (DEA) to obtain estimates of technical efficiency for 492 traditional rice plots in Côte d'Ivoire. The objective of this paper is to explore the importance of explicitly controlling for exogenous shocks to production in technical efficiency estimation. We show how omission of such variables in highly stochastic production environments can lead to serious inferential errors, with potentially significant policy implications. Conventional DEA estimation of a production frontier, followed by second-stage Tobit estimation of the correlates of plot- level technical efficiency, suggest widespread and substantial inefficiency related to crop fragmentation and seed varieties. However, when... Tipo: Conference Paper or Presentation Palavras-chave: Africa (Sub-Saharan); Ivory Coast; Production frontiers; Agricultural productivity; Rice.; Crop Production/Industries; Productivity Analysis; O12; Q12; D2. Ano: 1998 URL: http://purl.umn.edu/20945 Exploring growth linkages and market opportunities for agriculture in Southern Africa AgEcon Nin Pratt, Alejandro; Diao, Xinshen. Considering the heterogeneity of the countries of southern Africa and the presence of South Africa and other middle-income countries in the region, southern Africa has a unique opportunity to exploit agricultural potential and regional trade opportunities through regional dynamics and integration. We analyze the implications of such opportunities for the growth of the low-income countries, using a regional general equilibrium model that captures growth linkages. We find that growth in the middle-income southern African countries, such as South Africa, benefits the region’s low-income countries through increased demand for their agricultural exports. Agricultural productivity growth, however, is necessary for low-income countries to take advantage of South... Tipo: Report Palavras-chave: Regional trade; General equilibrium model; Regional integration; Agricultural productivity; Agricultural growth; Grain production; International Development; International Relations/Trade; Marketing. Ano: 2006 URL: http://purl.umn.edu/55411 Has the Return on Australian Public Investment in Agricultural Research Changed? AgEcon Binenbaum, Eran; Mullen, John D.; Wang, Chang Tao. We examine whether there has been a decline in the returns from Australian public investment in research on broadacre agriculture. Complementing a forthcoming paper by Mullen, we use alternative specifications for the regression equation, which employs the log of total factor productivity (TFP) as the dependent variable. The rate of return is computed on an annual basis rather than by using multi-year averages. In contrast to Mullen’s earlier preliminary analysis, we have now found some evidence of a decline in the rate of return on public R&D investment, lending some support to recently voiced concerns on this matter. Tipo: Conference Paper or Presentation Palavras-chave: R&D; Rate of return; Agricultural productivity; Public investment; Research and Development/Tech Change/Emerging Technologies. Ano: 2008 URL: http://purl.umn.edu/6016 International R&D Spillovers and Productivity Growth in the Agricultural Sector A Panel Cointegration Approach AgEcon Gutierrez, Luciano; Guiterrez, M.. This paper analyses, within the new growth theory framework and using panel cointegration techniques, the effect of agricultural international technological spillovers on total factor productivity growth for a sample of 47 countries during the period 1970-1992. The analysis shows that total factor productivity is strongly influenced by domestic as well as foreign public R&D spending in agricultural sector and geographical factors matters. Countries located in temperate zones benefit more than countries located in tropical zones from technological spillovers. Finally, the analysis shows that the rate of return to agricultural R&D spending is higher in tropical countries and this could justify new support and an even greater investment of funds for... Tipo: Conference Paper or Presentation Palavras-chave: Technology spillover; Agricultural productivity; Panel cointegration; Research and Development/Tech Change/Emerging Technologies; C14; O30; Q16. Ano: 2002 URL: http://purl.umn.edu/24967 Land Management Decisions and Agricultural Productivity in the Hillsides of Honduras AgEcon Jansen, Hans G.P.; Pender, John L.; Damon, Amy L.; Schipper, Robert A.. Increasing land degradation and concomitant low agricultural productivity are important determinants of rural poverty in the hillside areas of Honduras. Using data at the levels of the farm household, parcel and plot, we develop an econometric modeling framework to analyze land management decisions and their impact on crop productivity. Our econometric model allows for endogenous household decisions regarding livelihood strategy choice, use of labor and external inputs, and participation in organizations. We found support for the inverse farm size-land productivity relationship which suggests that improved land access could increase total crop production. Land tenure has no impact on crop productivity, but adoption of soil conservation practices is higher... Tipo: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Hillsides; Honduras; Land management; Soil conservation; Land Economics/Use; Productivity Analysis. Ano: 2006 URL: http://purl.umn.edu/25302 LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY AT LOCAL, REGIONAL, AND GLOBAL SCALES AgEcon Wiebe, Keith D.. Econometric and simulation analyses indicate that land degradation does not threaten agricultural productivity growth and food security at the global level, but problems exist in some areas. Improving market performance could reduce erosion-induced yield losses to 0.1 percent per year and the number of hungry people in less-developed countries by 5 percent over 10 years. Tipo: Conference Paper or Presentation Palavras-chave: Land quality; Agricultural productivity; Food security; Food Security and Poverty; Productivity Analysis. Ano: 2003 URL: http://purl.umn.edu/22015 LAND TENURE SYSTEM, FARM SIZE, INNOVATION AND AGRICULTURAL PRODUCTIVITY IN SOUTH-EAST NIGERIA AgEcon Eze, Christopher C.; Konkwo, S.O.; Orebiyi, J.S.; Kadiri, F.A.. This study examined land tenure systems, farm sizes, agricultural productivity and innovation in Imo State, Nigeria. Specifically the study examined the socio-economic characteristics of farmers, estimated the farm size of the farmers, identified reasons for not practicing mechanized farming, identified different innovations available to the farmers and identified the factors that affected agricultural productivity . Five communities were chosen randomly and from each of these communities, twenty farmers were randomly chosen. Data were collected, collated and analyzed using relevant techniques such as means, percentages, frequency distribution and multiple regression analysis. The results showed that 85% of the respondents practiced individual land tenure... Tipo: Conference Paper or Presentation Palavras-chave: Land Tenure system; Farm size; Agricultural productivity; Innovation; Productivity Analysis. Ano: 2011 URL: http://purl.umn.edu/108934 LINKING LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY AgEcon Wiebe, Keith D.. Land quality and land degradation affect agricultural productivity, but quantifying these relationships has been difficult. Data are limited, and impacts are sensitive to the choices that farmers make. Summarizing new research by economists, soil scientists, and geographers, this report explores the extent to which land quality and land degradation affect agricultural productivity, how farmers' responses to land degradation are influenced by economic, environmental, and institutional factors, and whether land degradation poses a threat to productivity growth and food security. Results suggest that land degradation does not threaten food security at the global scale, but does pose problems in areas where soils are fragile, property rights are insecure, and... Tipo: Report Palavras-chave: Land quality; Land degradation; Soil erosion; Agricultural productivity; Food security; Food Security and Poverty; Land Economics/Use; Productivity Analysis. Ano: 2003 URL: http://purl.umn.edu/34073 Registros recuperados: 35 Primeira ... 1 2 ... Última

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