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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 OS ALIMENTOS TRANSGÊNICOS NA AGRICULTURA BRASILEIRA: EVOLUÇÃO E PERSPECTIVAS AgEcon Almeida, Gustavo Calixto Scoralick de; Lamounier, Wagner Moura. The transgenic is a genetically modified organism or culture (OGM) that contains a gene that was artificially inserted, instead of having acquired naturally for pollination as they are for the conventional cultures. The “new agriculture “ based on this kind of products, points to a smaller degradation of the soils and of the environment, with reduction of the production costs and of the final prices for the consumer. Though your effects about the human health are still ignored and for that same reason, several restrictions to that type of food have been imposed. In that sense, this work sought to enlarge the discussion on that product type, discussing the possible environmental, economical and biological impacts of the transgenic use. The work is concluded... Tipo: Journal Article Palavras-chave: Transgenic food; Agricultural productivity; Agricultural; Agribusiness. Ano: 2005 URL: http://purl.umn.edu/43932 Productivity Change and Agricultural Policy Reform in China: Village Level Evidence for 1995 to 2009 AgEcon Zheng, Li; Kening, Wu. Adopting Stochastic Frontier Analysis and the multivariate regression model and employing 1995-2009 village-level data, the paper evaluates and interprets the effect of China’s agricultural policy reform on agricultural productivity change in the past fifteen years. The results show that China’s agricultural productivity has made significant growth in the past fifteen years under the influence of China’s agricultural policy reform. Furthermore, the effects of different agricultural policies on technical change and technical efficiency have significant differences with obvious periodic and regional features. The economic development pattern combining liberty with regulation has also led to frequent changes in China’s agricultural policies, which results in... Tipo: Journal Article Palavras-chave: Chinese agricultural policy; Agricultural productivity; Stochastic frontier analysis; Multivariate regression model; Agricultural and Food Policy; Productivity Analysis; Q18; Q47. Ano: 2011 URL: http://purl.umn.edu/103406 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 Private Sector in Agricultural R&D: Policies and Institutions to Foster its Growth in Developing Countries AgEcon Naseem, Anwar; Omamo, Steven Were; Spielman, David J.. New technologies are critical to enhancing agricultural productivity and reducing poverty in many developing countries. While public-sector investment in research has historically driven technological change in agriculture, recent trends suggest that the public sector’s role may not be as significant in the future. There is much optimism about the private sector’s capacity to deliver new technologies, even though current levels of private investment in research in developing countries remain low. This paper examines the determinants of private investment in agricultural research and development in developing countries, the market and institutional constraints that limit private investment growth, and the incentive mechanisms that can strengthen private... Tipo: Working or Discussion Paper Palavras-chave: Agricultural research and development; Private sector; Agricultural productivity; Research and development; Poverty reduction; Investments; Biotechnology; Food policy; Agricultural research; Research and Development/Tech Change/Emerging Technologies. Ano: 2006 URL: http://purl.umn.edu/58582 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 Precio de la tierra con presión urbana: un modelo para España AgEcon Decimavilla, Esther; San Juan, Carlos; Sperlich, Stefan. RESUMEN: Estudiamos el precio de la tierra para uso agrario y las variables que determinan su evolución en España, tratando de identificar qué parte de la subida de precios observada se justifica por elementos «internos», relacionados con la renta agraria esperada, y cuál proviene de elementos externos o especulativos, vinculados a cambios en el uso del suelo. Además se relaciona el ciclo de precios con la aceleración de la especialización en el ámbito regional y la integración en la PAC. La novedad de este trabajo consiste en identificar, mediante técnicas de datos de panel, factores no fundamentales (presión urbanizadora, creación de regadíos, cambio demográfico) que, además de los fundamentales (ingresos esperados y localización geográfica) determinan... Tipo: Journal Article Palavras-chave: Especialización regional; Especulación urbana; Datos de panel; Precios de la tierra; Productividad agraria; Urban pressure; Panel data; Land prices; Agricultural productivity; Regional specialization; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Demand and Price Analysis; Environmental Economics and Policy; Land Economics/Use; Research Methods/ Statistical Methods; Q15; R14; Q24; R52. Ano: 2008 URL: http://purl.umn.edu/37186 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 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 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 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 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 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 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 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 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 Registros recuperados: 35 Primeira ... 1 2 ... Última

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