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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 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 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 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 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 REGIONAL PRODUCTIVITY DIFFERENCES AND PROSPECT FOR CONVERGENCE IN BANGLADESH AGRICULTURE, 1964-1992 AgEcon Rahman, Sanzidur. This paper applies the sequential Malmquist index to calculate multi lateral, multi-factor productivity (MFP) indices for agriculture in 16 regions of Bangladesh from 1964 to 1992 and examines convergence among regions. Productivity grew at an average rate of 2.2% per annum, led by regions with high level of Green Revolution technology diffusion. The growth mainly occurred due to technological progress estimated at 2.1% per year. Overall technical efficiency declined slightly at 0.1% per year due to falling technical efficiency in most of the regions in later years. Both cross-section and time series tests confirmed that divergence among regions disappeared and agricultural productivity reached convergence in the long run. Tipo: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Regional variations; Convergence; Bangladesh; Productivity Analysis; O4; Q1. Ano: 2004 URL: http://purl.umn.edu/20047 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 Sources of Agricultural Productivity Growth in Central Asia 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: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Agricultural growth; Family farms; Corporate farms; Comparative performance; Agrarian reforms; Transition countries; Central Asia; Tajikistan; Uzbekistan; Agricultural and Food Policy; Institutional and Behavioral Economics; Land Economics/Use; Productivity Analysis; P27; P31; P32; Q15; R14. Ano: 2009 URL: http://purl.umn.edu/49312 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 The Impact of Nonfarm Activities on Agricultural Productivity in Rural China AgEcon Wang, Ye; Wang, Chenggang; Pan, Suwen. Although evidence abounds that the development of rural non-farm activities have increased rural household income and contributed to rural development, the underlying structure and mechanism of the linkage between agricultural productivity and non-farm activities is poorly understood. Using a unique panel dataset of Chinese villages, this article examines the mechanism by which non-farm activities influence agricultural productivity. I find that Chinese villages’ non-farm revenue has a significant positive effect on agricultural land productivity. Although non-farm activities do withdraw labor out of agriculture and therefore dampen land productivity, that negative effect is negligible in comparison with the land productivity improvement brought by... Tipo: Conference Paper or Presentation Palavras-chave: Rural non-farm activities; Labor migration; Agricultural productivity; Infrastructure capital.; Agricultural and Food Policy; Productivity Analysis; O13; Q18. Ano: 2011 URL: http://purl.umn.edu/103605 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 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 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 The Role of International Trade in Achieving Food Security AgEcon Kerr, William A.. Deteriorating food security status is primarily a local phenomenon resulting from failures in food systems and inadequate incomes. Technological advances in agriculture have led to declining long-term trends in food prices, which have assisted in improving diets. It is projected that in the first half of the twenty-first century, food production increases will have a difficult time keeping pace with the increase in population, leading to increased incidents where local price spikes for food lead to deteriorations in the food security status of many locally resident individuals. International trade in food products will be key to mitigating the effects of local food systems failures. Tipo: Journal Article Palavras-chave: Agricultural productivity; Food security; International trade; Price spikes; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Demand and Price Analysis; Food Security and Poverty; International Relations/Trade; Teaching/Communication/Extension/Profession. Ano: 2011 URL: http://purl.umn.edu/117818 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 Case of Smallholder Dairying in Eastern Africa AgEcon Ngigi, Margaret. Agriculture plays a crucial role in the economy of sub-Saharan Africa. A feature of particular significance about the region is that the majority of households are heavily dependent on agriculture as their major source of livelihood. Smallholder agriculture is the principal producer of staple foods and cash crops, accounting for very large shares of national production and marketed output. For the respective countries, therefore, the performance of smallholder agriculture has crucial implications for the overall economic development process including the alleviation of rural poverty. The demands created by steadily increasing populations, and the pressing need to increase agricultural productivity means that these countries must continuously adopt methods... Tipo: Working or Discussion Paper Palavras-chave: Dairying; East Africa; Uganda; Kenya; Livestock; Smallholders; Poverty alleviation; Population growth; Agricultural productivity; Small farmers; Rural poor; Livestock Production/Industries; Q1; Q15. Ano: 2005 URL: http://purl.umn.edu/59246 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 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 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 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 Registros recuperados: 35 Primeira ... 1 2 ... Última

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