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	Provedor de dados AgEcon (32) Infoteca-e (1) Autor Stavins, Robert N. (3) Jaffe, Adam B. (2) Langemeier, Michael R. (2) Newell, Richard G. (2) Roe, Terry L. (2) ALMEIDA, M. R. M. de (1) Achoth, Lalith (1) Adlas, J. (1) Alencar, Edgard (1) Ayres, Robert U. (1) BELCHIOR, E. B. (1) Badibanga, Thaddee Mutumba (1) Barbosa, Josue Humberto (1) Beringer, Tim (1) Bosetti, Valentina (1) Brauneis, Alexander (1) Brennan, Donna C. (1) Brester, Gary W. (1) Bullock, David S. (1) Burtraw, Dallas (1) Mais... Palavra-chave Technological change (33) Research and Development/Tech Change/Emerging Technologies (11) Environmental Economics and Policy (7) O33 (6) Resource /Energy Economics and Policy (6) Labor and Human Capital (5) O31 (4) Productivity (4) Q55 (4) Induced innovation (3) International Development (3) O3 (3) Q20 (3) Agribusiness (2) Climate change (2) Economic growth (2) Environment (2) International Relations/Trade (2) L51 (2) L72 (2) Mais... Tipo do documento Working or Discussion Paper (15) Conference Paper or Presentation (9) Journal Article (6) Documentos (INFOTECA-E) (1) Report (1) Working Paper (1) Mais... Ano 2017 (1) 2011 (3) 2010 (2) 2009 (4) 2008 (1) 2006 (3) 2005 (1) 2004 (2) 2003 (4) 2002 (1) 2001 (3) 2000 (1) 1999 (2) 1998 (2) 1997 (2) 1994 (1) Mais... País United States (32) Brazil (1) Idioma Inglês (31) Português (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 33 Primeira ... 1 2 ... Última Avaliação de impactos ambientais de sistemas de integração lavoura-pecuária-floresta conforme contexto de adoção. Infoteca-e RODRIGUES, G. S.; OLIVEIRA, P. de; NOVAES, R. M. L.; PEREIRA, S. E. M.; NICODEMO, M. L. F.; SENA, A. L. dos S.; BELCHIOR, E. B.; ALMEIDA, M. R. M. de; SANTI, A.; WRUCK, F. J.. Resumo: Procedimentos de avaliação de impactos têm sido realizados para analisar e promover estratégias de integração lavoura-pecuária-floresta (ILPF) adotadas em Unidades de Referência Tecnológica (URTs) no âmbito da ?Rede de Fomento ILPF?. A abordagem, baseada no método multicritério Ambitec-Agro, foi realizada em seis URTs em colaboração com equipes da Embrapa e parceiros em todo o país. Estes estudos de caso incluíram desde empresas rurais de grande porte até estabelecimentos familiares, e desde complexos esquemas de integração até simples integração lavoura-pecuária voltada apenas à reforma de pastagens. Devido ao seu típico efeito de intensificação, a ILPF resultou em importantes ganhos de produtividade e de eficiência no uso de recursos naturais,... Tipo: Documentos (INFOTECA-E) Palavras-chave: Inovações tecnológicas agropecuárias; Sustentabilidade; Desempenho ambiental; Avaliação multicritério; Ambitec-Agro; Agrossilvicultura; Impacto ambiental; Impacto econômico; Impacto social; Agricultura sustentável; Inovação; Mudança tecnológica; Agroforestry; Technological change; Innovation adoption; Environmental assessment; Environmental performance. Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1070414 A spatial bio-economic modelling approach on the trade-offs between global bioenergy demand, agricultural intensification, expansion, and trade AgEcon Lotze-Campen, Hermann; Popp, Alexander; Beringer, Tim; Muller, Christoph; Lucht, Wolfgang. Increased future demands for food, fibre and fuels from biomass can only be met if the available land and water resources on a global scale are used and managed as efficiently as possible. The main routes for making the global agricultural system more productive are through intensification and technological change on currently used agricultural land, land expansion into currently non-agricultural areas, and international trade in agricultural commodities and processed goods. In order to analyse the trade-offs and synergies between these options, we present a global bio-economic modelling approach with a special focus on spatially explicit land and water constraints as well as technological change in agricultural production. For a given bioenergy demand... Tipo: Conference Paper or Presentation Palavras-chave: Land use change; Spatial modelling; Technological change; Environmental Economics and Policy; International Development; International Relations/Trade; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; C61; F15; Q24; Q25. Ano: 2009 URL: http://purl.umn.edu/51458 Scarcity and Growth in the New Millennium: Summary AgEcon Simpson, R. David; Toman, Michael; Ayres, Robert U.. In their 1963 classic Scarcity and Growth Howard Barnett and Chandler Morse argued that resource scarcity did not threaten economic growth. A second investigation in the late 1970s, Scarcity and Growth Reconsidered, reached largely the same conclusion. The 25 years since that work was published have witnessed many developments. The message of Scarcity and Growth that depletion of market resources was not a problem has given way to a concern that "new scarcities" of environmental quality, global climate, and biological diversity are emerging. Resources for the Future recently assembled a distinguished group of international scholars to again address scarcity and growth. This paper describes their charge and summarizes their findings. Technological progress... Tipo: Working or Discussion Paper Palavras-chave: History of economic thought; Technological change; Renewable resources and economy; Research and Development/Tech Change/Emerging Technologies; B12; B20; N50; O13; O14; O33; O47; Q20; Q32. Ano: 2004 URL: http://purl.umn.edu/10835 Linking Reduced Deforestation and a Global Carbon Market: Impacts on Costs, Financial Flows, and Technological Innovation AgEcon Bosetti, Valentina; Lubowski, Ruben N.; Golub, Alexander; Markandya, Anil. Discussions over tropical deforestation are currently at the forefront of climate change policy negotiations at national, regional, and international levels. This paper analyzes the effects of linking Reduced Emissions from Deforestation and Forest Degradation (REDD) to a global market for greenhouse gas emission reductions. We supplement a global climate-energy-economy model with alternative cost estimates for reducing deforestation emissions in order to examine a global program for stabilizing greenhouse gas concentrations at 550 ppmv of CO2 equivalent. Introducing REDD reduces global forestry emissions through 2050 by 20-22% in the Brazil-only case and by 64-88% in the global REDD scenarios. At the same time, REDD lowers the total costs of the... Tipo: Working or Discussion Paper Palavras-chave: Carbon market; Climate change; Innovation; Mitigation; Policy costs; Offsets; Reduced Emissions from Deforestation and Degradation (REDD); Technological change; Tropical deforestation; Environmental Economics and Policy; Q23; Q24; Q42; Q52; Q54; Q55. Ano: 2009 URL: http://purl.umn.edu/52544 Inducing Low-Carbon Investment in the Electric Power Industry through a Price Floor for Emissions Trading AgEcon Brauneis, Alexander; Loretz, Michael; Roland, Mestel; Palan, Stefan. Uncertainty about long-term climate policy is a major driving force in the evolution of the carbon market price. Since this price enters the investment decision process of regulated firms, this uncertainty increases the cost of capital for investors and might deter invest-ments into new technologies at the company level. We apply a real options-based approach to assess the impact of climate change policy in the form of a constant or growing price floor on investment decisions of a single firm in a competitive environment. This firm has the opportunity to switch from a high-carbon “dirty” technology to a low-carbon “clean” technology. Using Monte Carlo simulation and dynamic programming techniques for real market data, we determine the optimal CO2 price... Tipo: Working Paper Palavras-chave: Carbon price; Price floor; Technological change; Investment decision; Real option approach; Resource /Energy Economics and Policy; D81; O38; Q55. Ano: 2011 URL: http://purl.umn.edu/119096 The Induced Innovation Hypothesis and Energy-Saving Technological Change AgEcon Newell, Richard G.; Jaffe, Adam B.; Stavins, Robert N.. We develop a methodology for testing Hick's induced innovation hypothesis by estimating a product-characteristics model of energy-using consumer durables, augmenting the hypothesis to allow for the influence of government regulations. For the products we explored, the evidence suggests: (i) the rate of overall innovation was independent of energy prices and regulations, (ii) the direction of innovation was responsive to energy price changes for some products but not for others, (iii) energy price changes induced changes in the subset of technically feasible models that were offered for sale, (iv) this responsiveness increased substantially during the period after energy-efficiency product labeling was required, and (v) nonetheless, a sizeable portion of... Tipo: Working or Discussion Paper Palavras-chave: Induced innovation; Energy efficiency; Technological change; Economic incentives; Regulation; Standards; Climate change; Resource /Energy Economics and Policy; L51; O31; O38; Q40; Q20; Q48. Ano: 1998 URL: http://purl.umn.edu/10521 Innovation, Productivity Growth, and the Survival of the U.S. Copper Industry AgEcon Tilton, John E.; Landsberg, Hans H.. Mining is widely viewed as an old industry with mature and stable technologies. Companies and countries with the best deposits are the most productive and efficient producers. As these deposits are depleted, mining shifts to countries with the next best deposits. This tendency to exploit poorer quality ores tends to push productivity down and the prices of mineral commodities up over time. Copper mining in the United States, however, calls into question this conventional view. After leading the world in output for decades, the U.S. industry lost its ability to compete and suffered a major decline during the 1970s and early 1980s. In the face of predictions of complete collapse, it staged a remarkable revival, and today mines more copper than in 1970. A... Tipo: Working or Discussion Paper Palavras-chave: Copper industry; Productivity; Technological change; Comparative advantage; Resource /Energy Economics and Policy; Q30; L72; O31; F14. Ano: 1997 URL: http://purl.umn.edu/10534 The German Wind Energy Lobby: How to Successfully Promote Costly Technological Change AgEcon Michaelowa, Axel. German wind power development is a technological success story but has involved very high subsidies. Germany was a latecomer in wind power but specific political conditions in the late 1980s and early 1990s allowed the implementation of the feed in tariff regime which has characterised Germany ever since. The wind lobby managed to constitute itself at an early stage and to develop stable alliances with farmers and regional policymakers. The concentration of the wind industry in structurally weak regions reinforced these links. With an increased visibility of the subsidies and saturation of onshore sites in the early 2000s, the lobby has been less successful in retaining support. The current attempt to develop offshore projects may suffer from less... Tipo: Working or Discussion Paper Palavras-chave: Wind power; Interest groups; Technological change; Political Economy; Resource /Energy Economics and Policy; Q420; Q580; Q520. Ano: 2004 URL: http://purl.umn.edu/26349 The Effect of Household Wealth on Input Market Participation in Southern Africa AgEcon Langyintuo, Augustine S.; Mungoma, Catherine. Input technological change, fundamental to rural transformation, sometimes bypasses some rural populations because farmers are often reluctant to use new inputs due to production and price risks that could render their use unprofitable. The level of wealth of the household significantly relates to the household's ability to cope with such risks. Given the highly disproportionate distribution of wealth among rural households, this paper demonstrated that first stratifying households into meaningful wealth categories and estimating non-separable household improved variety adoption and seed demand models for each wealth category provides an opportunity to develop credible policy relevant recommendations on interventions that increase impact. This approach... Tipo: Conference Paper or Presentation Palavras-chave: Wealth index; Improved maize variety; Consumption characteristics; Production attributes; Derived input; Technological change; Censored regression; Zambia; Consumer/Household Economics; C12; D1; I3; Q12; Q13. Ano: 2006 URL: http://purl.umn.edu/25630 TECHNOLOGICAL CHANGE IN THE U.S. BEEF AND PORK SECTORS: IMPACTS ON FARM-WHOLESALE MARKETING MARGINS AND LIVESTOCK PRICES AgEcon Marsh, John M.; Brester, Gary W.. Real livestock prices and farm-wholesale marketing margins have steadily declined over the past 20 years. Many studies have examined the effects of increasing packer concentration on these declines. However, most have generally failed to account directly for technological change in livestock production and red meat slaughtering. We estimate reduced form models for beef and pork farm-wholesale marketing margins and cattle and hog prices that specifically include measures of technological change. Empirical results indicate that meat packing technology has reduced real margins and technological change embodied in cattle and hog production accounts for substantial declines in real slaughter cattle and hog prices. When technological change is explicitly... Tipo: Working or Discussion Paper Palavras-chave: Livestock prices; Marketing margins; Packer concentration; Technological change; Marketing; Research and Development/Tech Change/Emerging Technologies; D4. Ano: 1999 URL: http://purl.umn.edu/29242 The economics of land degradation and technological change: a case study in Vietnam AgEcon Clayton, Helena; Brennan, Donna C.. This paper explores the economics of land degradation in the rice-shrimp system in the Mekong Delta of Vietnam. A bioeconomic NPV model was developed to evaluate and compare the long-term benefits of alternative production choices and farm technologies. There is an alternative rice-shrimp technology emerging in Vietnam that does not have the same land degrading impacts as the 'traditional' system, however the high capital outlay and risk associated with such technology presents its own problems. In the paper the economic incentives for adoption of the non-land degrading rice-shrimp technology are explored. Conclusions are drawn with regard to the opportunity cost of land degradation and technological change. Some conclusions are also provided on the policy... Tipo: Conference Paper or Presentation Palavras-chave: Land degradation; Technological change; Vietnam; Environmental Economics and Policy. Ano: 2003 URL: http://purl.umn.edu/57845 Modeling International Trends in Energy Efficiency and Carbon Emissions AgEcon Stern, David I.. This study uses a stochastic production frontier to model energy efficiency trends, in 85 countries over a 37 year period. No structure is imposed on technological change over time, although differences in technology level across the countries are modelled as a stochastic function of explanatory variables. These variables are selected by a literature survey and a theoretical model of energy-efficient technology choice. An improvement in a country’s energy efficiency is measured as a reduction in energy intensity, while holding constant that economy’s mix of inputs and outputs. All other things remaining constant, the country using the least energy per unit output is on the global best-practice frontier. The model is used to derive decompositions of... Tipo: Report Palavras-chave: Energy; Efficiency; Carbon; Emissions; Technological change; Between estimator; Environmental Economics and Policy; Resource /Energy Economics and Policy; O13; O33; O47; Q43; Q54; Q55; Q56. Ano: 2010 URL: http://purl.umn.edu/94950 Is the Green Revolution Vanishing? Empirical Evidence from TFP Analysis for Rice AgEcon Adlas, J.; Achoth, Lalith. A serious concern has been raised recently on the long run sustainability of the productivity effects of Green Revolution technologies in the light of decelerating trend in the yield growth of rice since the mid 1980s under irrigated ecosystem. However, the changes in physical yield are not true measures of productivity from efficiency perspective. Total factor productivity (TFP) is a true measure of economic efficiency of any technology impact. The paper addresses the crucial issue of "is green revolution vanishing" empirically by analyzing TFP for rice in India. Results suggest that various modern technologies (such as modern cultivars) adopted by the farmers over the period have continued to make considerable impact on rice productivity growth-as... Tipo: Conference Paper or Presentation Palavras-chave: Technological change; Productivity; Rice; India; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; O3. Ano: 2006 URL: http://purl.umn.edu/25561 GROWTH THEORY AND ACCOUNTING FOR GROWTH OF THE TAIWANESE ECONOMY AgEcon Lin, Pei-Chien; Roe, Terry L.. A growth accounting and an econometric exercise are used to provide insights into the evolution of the Taiwanese economy over the period 1966-96. The approach links the GDP function of a multiple sector neoclassical growth model to growth accounting and, subsequently to the estimation of the parameters of this function. The growth accounting results show that the contribution of total factor productivity (TFP) to growth in GDP averaged about 32 percent over the period, and this contribution increased as the economy approached its long-run equilibrium during the decade of the 1980s, with evidence of some departure during 1991-96. Growth in TFP increased output growth in industry and services while growth in skilled labor benefited all sectors. Growth in... Tipo: Working or Discussion Paper Palavras-chave: Economic growth; Productivity; Technological change; International Development; Productivity Analysis; O3; O4; O5. Ano: 1999 URL: http://purl.umn.edu/12968 Measuring factor substitution and technological change in the Tunisian agricultural sector, 1971 - 2000 AgEcon Lachaal, Lassaad; Chebil, Ali; Dhehibi, Boubaker. The production structure of Tunisian agriculture over the last three decades is investigated using a translog variable cost function. Standard results of neoclassical duality theory are used to obtain measures of elasticities of substitution between inputs, price elasticities of factor demands and the rate of growth and bias of technological progress. Empirical results obtained from the joint estimation of parameters of the cost and share equations indicate an increasing trend in the degree of substitutability between labour and intermediate inputs. The own-price elasticities of labour and intermediate inputs are inelastic. While the labour price elasticity of demand has increased over time, the... Tipo: Journal Article Palavras-chave: Factor substitution; Technological change; Tunisian agriculture; Research and Development/Tech Change/Emerging Technologies. Ano: 2005 URL: http://purl.umn.edu/44096 Changing role of BRIC countries in technology-driven international division of labor AgEcon Gryczka, Marcin. In contemporary international division of labor the importance of ICT technologies and social capital is increasing, and allows the economy to be more competitive due to arising many connections to the global information networks. The major goal of this article was analyzing (mostly in descriptive manner) and comparing the recent trends in GDP growth and its composition and international trade of high-technology manufactures and services for developed and BRIC countries. The results of conducted statistical data analysis justify the conclusion that some developing economies, especially China and India, are in fact gaining on importance in international trade of high-tech products and knowledge-intensive business services, even having become more effective... Tipo: Journal Article Palavras-chave: International division of labor; Technological change; Creative economy.; Labor and Human Capital; O33. Ano: 2010 URL: http://purl.umn.edu/95975 A New Measure of the Producer Welfare Effects of Technological Change AgEcon Bullock, David S.. It is well recognized that the statistical reliability of the conventional method of estimating the effects of technological change on producer welfare is often quite poor. I present a method that enhances the statistical reliability of such estimates. I emphasize that when measuring the welfare effects of technological change, valuable information can be gleaned from data on input prices and quantities. This type of data is often available, but the conventional measure typically does not take full advantage of its availability. Letting T0 be some initial level of technology and T1 be a subsequent level, the conventional measure of producer welfare change due to a technology change is the change in the “triangle” area under the price and behind the... Tipo: Conference Paper or Presentation Palavras-chave: Technological change; Producer welfare; Applied welfare economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; O30; O33. Ano: 2011 URL: http://purl.umn.edu/103834 FUNDAMENTAL AND INDUCED BIASES IN TECHNOLOGICAL CHANGE IN CENTRAL CANADIAN AGRICULTURE AgEcon Clark, J. Stephen; Klein, Kurt K.; Kerr, William A.. A new procedure is developed to estimate innovation possibility frontiers and test for biases in technological change. Using data on four inputs (land, machinery, chemicals and labour) from central Canada (Ontario and Quebec) over the period 1926-1985, we find that the innovations possibilities frontier shifts neutrally over time. This is consistent with Ahmad's model of induced innovations, but is not consistent with de Janvry's application of Ahmad's model to the historical development of Argentine agriculture. Agricultural research in Canada has been conducted with the objective of developing cost minimizing technologies. Empirical support was found for this notion in the development of the innovation possibilities frontier. Tipo: Conference Paper or Presentation Palavras-chave: Innovation possibility frontier; Technological change; Research and Development/Tech Change/Emerging Technologies. Ano: 2003 URL: http://purl.umn.edu/25874 The Effect of Technological Change on Demand and Supply of Hired Farm Workers in the United States AgEcon Mishra, Ashok K.; Rezitis, Anthony N.. This paper investigates the effect of technological change on the demand for, and supply of, hired farm workers in the United States for the period 1950 to 1992. Particular attention is given to the proxy for technological change. We have used total expenditures, both by public and private sectors, for research and development in the field of agriculture. We find that technology has a negative impact on the hired labor demand after the second and third year of initial investment. Our results show that technology is labor saving. The demand and supply elasticities were found to differ from other studies. We also derive elasticities of adjustment and draw some policy conclusions. The paper also presents a dynamic-in-period simulation of the estimated model. Tipo: Journal Article Palavras-chave: Elasticity; Hired workers; Technological change; Total expenditures; Agribusiness; Labor and Human Capital. Ano: 1998 URL: http://purl.umn.edu/90432 Farm Level Nonparametric Analysis of Profit Maximization Behavior with Measurement Error AgEcon Zereyesus, Yacob Abrehe; Featherstone, Allen M.; Langemeier, Michael R.. This paper tests the farm level profit maximization hypothesis using a nonparametric production analysis approach allowing for measurement error in the input and output variables. All farms violated Varian’s deterministic Weak Axiom of Profit Maximization (WAPM). The magnitude of minimum critical standard errors required for consistency with profit maximization, convex technology production was smaller after allowing technological change during the sample period. Results indicate strong support for the presence of technological change during the sample period. Tipo: Conference Paper or Presentation Palavras-chave: Nonparametric analysis; Profit maximization; Measurement error; Technological change; Production Economics; D24. Ano: 2009 URL: http://purl.umn.edu/46829 Registros recuperados: 33 Primeira ... 1 2 ... Última

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