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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 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 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 The correlation between the agricultural productivity and the export performance of the agro-food foreign trade in the Visegrád Group countries following accession to the European Union AgEcon Baráth, Lajos; Nagy, Zsuzsanna; Szabo, Gabor G.. In this paper we have sought to answer three research questions: what was the difference between the agricultural export growth rates of the Visegrád Group countries following the EU accession; how did the multifactor productivity in the countries under study evolve; and could a correlation be observed between the growth rates of the multifactor productivity and of the agricultural exports. The average annual growth rate of the multifactor productivity was highest in Poland, followed by the growth rate in Slovakia, in Hungary and in the Czech Republic. The average annual growth rates of the exports of agricultural raw materials and of the total food economy had identical rankings except for Hungary. The results of the analysis allow the presumption that... Tipo: Journal Article Palavras-chave: Agro-food foreign trade; Agricultural productivity; Visegrád Group countries; Agricultural and Food Policy; International Relations/Trade; Productivity Analysis. Ano: 2010 URL: http://purl.umn.edu/93122 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 REGIONAL TRENDS IN EXTENSION SYSTEM RESOURCES AgEcon Ahearn, Mary Clare; Yee, Jet; Bottum, John S.. In 1914, the Cooperative Extension Service was established to disseminate information about agriculture and home economics from land-grant universities to the U.S. public. At that time, about 30 percent of U.S. workers were in agriculture-related occupations; by the late 1990s, that share had declined to about 1 percent. Today, the Extension System ("Extension") is largely publicly funded and links the educational and research arms of the U.S. Department of Agriculture, land-grant universities, and related institutions. The system has changed along with its audience. The number of full-time-equivalent Extension personnel dropped by 12 percent from 1977 to 1997, with the largest declines found in community resource development and 4-H youth programs, two of... Tipo: Report Palavras-chave: Cooperative Extension Service; Extension; Full-time-equivalent; FTE; Agricultural productivity; Smith-Lever Act of 1914; Research and development; Land-grant universities; Teaching/Communication/Extension/Profession. Ano: 2003 URL: http://purl.umn.edu/33787 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 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 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 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 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 Productivity convergence in the European regional agricultures. Determinants of its evolution AgEcon Cuerva Narro, Maria Carmen. The aim of this study is to analyse the evolution of the European regional agricultural productivity in terms of convergence. The initial hypothesis is that, in spite of the integration process, the agricultural productivity does not converge to the same stationary level. Additionally, we try to identify the decisive factors affecting such productivity growth. Productivity related information comes from Cambridge Econometrics database for a set of 125 EU-15 regions in the period 1985-2004. The methodology used consists in traditional beta convergence regressions. The difficulties with cross-sectional estimations require the use of panel data techniques for a better estimation of the speed of convergence. The main results show that convergence occurs to... Tipo: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Beta convergence; Panel data; Common Agricultural Policy; Agricultural and Food Policy. Ano: 2009 URL: http://purl.umn.edu/58002 Sources of Agricultural Productivity Growth in Central Asia: The Case of Tajikistan and Uzbekistan AgEcon Lerman, Zvi; Sedik, David J.. The paper examines agricultural production and productivity growth in two Central Asian countries – Tajikistan and Uzbekistan. Both countries are characterized by a significant shift of resources from the traditional Soviet model of collective agriculture to more market-compliant individual and family farming. In both countries, the beginning of the policy-driven switch to family farming around 1997 coincided with the beginning of recovery in agriculture, namely resumption of agricultural growth after a phase of transition decline since 1991. In addition to growth in total agricultural production, we also observe significant increases in productivity of both land and labor since 1997. These observations suggest that productivity growth may be attributable... Tipo: Working or Discussion Paper Palavras-chave: Agricultural productivity; Agricultural growth; Family farms; Corporate farms; Comparative performance; Agrarian reforms; Transition countries; Central Asia; Tajikistan; Uzbekistan; Agricultural and Food Policy; Community/Rural/Urban Development; Food Security and Poverty; International Development; Land Economics/Use; Productivity Analysis; P27; P31; P32; Q15; R14. Ano: 2009 URL: http://purl.umn.edu/54713 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 Uptake of Improved Technologies in the Semi-arid Tropics of West Africa: Why is Agricultural Transformation Lagging Behind? AgEcon Ndjeunga, Jupiter; Bantilan, Ma Cynthia S.. During the last 3 decades, donors and governments have invested in the development and dissemination of new technologies in the semi-arid tropics of West Africa. Though a wide range of improved technologies has been developed, adoption remains low without a significant impact on crop productivity, rural income and poverty. Agricultural transformation as occurred in East Asia has not yet occurred in the semi-arid tropics of West Africa. This paper uses data from a regional survey of rural households in 3 countries in West Africa (Burkina Faso, Mali, and Niger) to identify the determinants of uptake of improved technologies. Limited productivity gain is found to be a major constraint to the uptake of technologies. In addition, poorly functioning... Tipo: Journal Article Palavras-chave: Institutions; Technology; Markets; Road infrastructure; Information; Agricultural productivity; International Development. Ano: 2005 URL: http://purl.umn.edu/110146 STRATEGIES TO INCREASE AGRICULTURAL PRODUCTIVITY AND REDUCE LAND DEGRADATION: EVIDENCE FROM UGANDA AgEcon Pender, John L.; Nkonya, Ephraim M.; Jagger, Pamela; Sserunkuuma, Dick; Ssali, Henry. This paper estimates a structural econometric model of household decisions regarding income strategies, participation in programs and organizations, crop choices, land management, and labor use, and their implications for agricultural production and land degradation; based upon a survey of over 450 households and their farm plots in Uganda. The results generally support the Boserupian model of population-induced agricultural intensification, but do not support the "more people-less erosion" hypothesis, with population pressure found to contribute to erosion in the densely populated highlands. Agricultural technical assistance programs have location-specific impacts on agricultural production and land degradation, contributing to higher value of crop... Tipo: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Land degradation; Agricultural development strategies; Uganda; Farm size-productivity; Land Economics/Use; Productivity Analysis. Ano: 2003 URL: http://purl.umn.edu/25816 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 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 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 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 Registros recuperados: 35 Primeira ... 1 2 ... Última

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