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Forecasting seasonality in prices of potatoes and onions: challenge between geostatistical models, neuro fuzzy approach and Winter method AgEcon
Amiri, Arshia; Bakhshoodeh, Mohamad; Najafi, Bahaeddin.
Munich Personal RePEc Archive
Tipo: Technical Report Palavras-chave: Price; Geostatistical model; Kiriging; Inverse distance weighting; Winter’s method; Adaptive neuro fuzzy inference system; Potatoes; Onions; Iran; Crop Production/Industries; Demand and Price Analysis.
Ano: 2011 URL: http://purl.umn.edu/119154
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THE U.S. SUGAR INDUSTRY UNDER EU AND DOHA TRADE LIBERALIZATION AgEcon
Andino, Jose; Taylor, Richard D.; Koo, Won W..
This study evaluates potential reforms of the EU and some liberalization policies under the Doha agenda proposal. Results indicate that EU sugar policy reforms will increase the Caribbean sugar price from 8.7 to 9.96 cents, but will not affect the U.S. sugar industry. If the world sugar industry is liberalized on the basis of the WTO-Doha framework proposal, U.S. sugar imports will increase to 1.9 million tons and wholesale price will decrease from 24.89 to 23.79 cents per pound. Under this scenario, it is also expected that the Caribbean price will increase from 8.7 to 12.1 cents per pound. Brazil will benefit the most as production and export sales increase.
Tipo: Working or Discussion Paper Palavras-chave: Sugar; Liberalization; Production; Price; EU reform; Doha; International Relations/Trade.
Ano: 2005 URL: http://purl.umn.edu/23567
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ANÁLISE ESTRUTURAL DA SÉRIE DE PREÇOS DO SUÍNO NO ESTADO DO PARANÁ, 1994 A 2007 AgEcon
Aredes, Alan Figueiredo de; Pereira, Matheus Wemerson Gomes; Santos, Maurinho Luiz dos.
O presente artigo tem por objetivo analisar a estrutura e comportamento da série de preços mensal recebido pelos produtores de suíno do Estado do Paraná no período de 06/1994 a 08/2007. Para isso, a série de preços do suíno foi decomposta em seus elementos não observáveis: tendência, sazonalidade, ciclos e movimentos irregulares, utilizando-se modelos temporais de domínio do tempo e de frequência. Os resultados indicam que a série de preços do suíno apresenta uma componente tendência ascendente irregular, um componente sazonal e cíclico (de curta duração) e uma volatilidade assimétrica e persistente ao longo do tempo. ---------------------------------------------The objective this paper is to analyze the structure and behavior of the monthly price received...
Tipo: Conference Paper or Presentation Palavras-chave: Preço; Suíno; Paraná; Price; Swine; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/109814
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Resultado econômico da produção de ovinos para carne em pasto de azevém e confinamento - DOI: 10.4025/actascianimsci.v31i1.3995 Animal Sciences
Barros, Carina Simionato de; UFPR; Monteiro, Alda Lúcia Gomes; UFPR; Poli, César Henrique Espírito Candal; UFRGS; Fernandes, Maria Angela Machado; UFRGS; Almeida, Rodrigo de; UFPR; Fernandes, Sergio Rodrigo.
O trabalho objetivou analisar a viabilidade econômica da produção de cordeiros para carne e identificar os componentes que exercem maior influência sobre o custo de produção. Este estudo foi realizado em duas etapas. Primeira etapa: experimento no Lapoc-UFPR, em 2004, que comparou a terminação de cordeiros para abate aos 32 kg: (1) desmame aos 40 dias e terminação em pasto, (2) cordeiro com mãe em pasto, (3) cordeiro com mãe em pasto e creep feeding (1% PV dia-1 de concentrado) e (4) desmame aos 40 dias e confinamento. Segunda etapa: um módulo de 150 ovelhas foi projetado a partir do experimento para avaliações econômicas. Foram realizados cálculos de custo fixo, variável, total, lucratividade e rentabilidade, valor presente líquido, taxa interna de...
Tipo: Pesquisa de campo e análise Palavras-chave: 5.04.00.00-2 Zootecnia custo de produção; Lucratividade; Margem líquida; Ponto de equilíbrio; Preço; Sistemas de produção de cordeiro Produção Animal production cost; Profitability; Net margin; Breakeven point; Price; Lamb production systems.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/3995
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WORLD IMPORTANCE AND PRESENT TENDENCIES OF DAIRY SECTOR AgEcon
Blasko, Beata.
The general objective of this paper is to present the world importance of dairy sector and to illustrate present tendency of milk production, consumption, trade and prices mainly based on FAO data base. World milk production was 711 million tonnes in 2010 and it is expected to increase in the future. The most significant milk producers are the EU(27), the United States and from the Asian countries, India and China. Developed countries give one-third of world milk production, while more than two-third of world dairy herd can be found in developing countries. Milk production growth is a future tendency mainly in China, India, Pakistan, Argentina and Brazil. The average level of consumption of milk and milk products is 103,6 kg/capita/year and it will...
Tipo: Journal Article Palavras-chave: Dairy sector; Production; Consumption; Trade; Price; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/104683
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Conceptual model to identify factors with influence in Brazilian beef consumption R. Bras. Zootec.
Brandão,Fernanda Scharnberg; Barcellos,Júlio Otávio Jardim; Waquil,Paulo Dabdab; Oliveira,Tamara Esteves de; Gianezini,Miguelangelo; Dias,Eduardo Antunes.
The complexity of the consumers' behavior has taken the food industry to a new level of dynamism. Therefore, understanding the factors that influence this behavior is decisive for the differentiation of products to niche markets and even to adjust the supply according to consumers' expectancy. This article proposes a conceptual model to identify the factors influencing beef consumption in Brazil. The methodological approach was characterized by a systematic review through a synthesis of research related directly to this topic. Therefore, 76 papers published during the 2000-2014 period, including official documents (statistics), full research papers, abstracts, proceedings, and reports, were selected. Four main factors were related to influences in consumer...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agribusiness; Beef cattle; Behavior; Price; Sustainability.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000600213
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Consumer behavior: conditioners on the purchase decision of fluid milk Ciência Rural
Breitenbach,Raquel; Brandão,Janaína Balk.
ABSTRACT: Considering economic, contingent and cultural conditions that interfere with consumer demand, the objective of this research was to evaluate the degree of importance of these variables in the decision of the Brazilian consumer to buy fluid milk. A total 1,015 milk consumers were sampled through non-probabilistic tools such as researchers’ contact network, snowballing, and self-generated samples, in a virtual questionnaire. Non-parametric tests and univariate statistical analyzes were applied, including the chi-square test. The consumer profile interferes with the selection criteria in the purchase of fluid milk as follows: (a) women consider “price”, “product origin”, “friend recommendation”, “product appearance”, “sales offers”, and “brand” as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brands; Price; Women.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000300931
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Substitution between domestic and imported orange juice and impacts of U.S. tariffs on prices and production AgEcon
Brown, Mark G.; Spreen, Thomas H.; Lee, Jonq-Ying.
A demand system model differentiating goods by product form and origin is developed to examine the impact of eliminating U.S. tariffs on orange-juice prices. An empirical analysis suggests a range of tariff impacts on prices depending on the degree of substitution between products. The model yielded similar results as alternative models when substitution was assumed to be relatively strong. In the long run, lower, without-tariff prices can be expected to lead to lower Florida orange planting and production levels. A sustained reduction in the U.S. OJ price of half the value of the FCOJ tariff is estimated to reduce orange planting levels by about 50% and orange production would declined by 24% by 2021-22.
Tipo: Report Palavras-chave: Price; Tariffs; Orange juice; Product differentiation; Agribusiness; Demand and Price Analysis; International Relations/Trade.
Ano: 2001 URL: http://purl.umn.edu/52888
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Efecto del cambio climático en los mercados de maíz (Zea mays L.) y sorgo (Sorghum vulgare) en México. Colegio de Postgraduados
Caamal Pat, Zulia Helena.
La incertidumbre del cambio climático y sus efectos en la agricultura llevan a los productores de granos forrajeros a buscar cultivos con mayor tolerancia a las condiciones climáticas observadas. El objetivo de este estudio fue medir el efecto del cambio climático en los mercados de maíz y sorgo en México, para lo cual se construyó un modelo Armington para el periodo 2008/2010. Los resultados obtenidos mostraron que un cambio en el rendimiento de maíz; a causa de los cambios en la temperatura y precipitación en México durante el cultivar de maíz, incrementará las importaciones de maíz y sorgo, y los precios de importación aumentarán aproximadamente en la misma proporción para ambos cultivos. Si los rendimientos de sorgo disminuyeran debido al cambio...
Palavras-chave: Importación; Modelo Armington; Precio; Rendimiento; Valor comercial; Imports; Armington model; Yield; Price; Commercial value; Economía; Maestría.
Ano: 2014 URL: http://hdl.handle.net/10521/2365
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Variacao estacional de precos das hortalicas no mercado atacadista do DF. Infoteca-e
CASTOR, O. S.; SILVA, R. J. B. da.
bitstream/item/107324/1/CNPH-DOCUMENTOS-01-VARIACAO-ESTACIONAL-DE-PRECOS-DAS-HORTALICAS-NO-MERCADO-ATADISTA-DO-DF-FL-0780.pdf
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Variacao estacional; Brasilia; Distrito Federal; Brasil; Price; Market.; Cerrado; Hortaliça; Mercado Atacadista; Preço.; Vegetables..
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/769870
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Effects of Maize Marketing and Trade Policy on Price Unpredictability in Zambia AgEcon
Chapoto, Antony; Jayne, Thomas S..
As events in the 2008/09 season have amply demonstrated, instability in staple food market remains a major problem in Zambia. A rise in world food price levels and instability, which is projected to occur in the near future according to several international institutes, will make it all more important for developing countries to consider the strengths and weaknesses of alternative approaches for buffering their domestic food systems from potential high volatility in world markets. These findings suggest that promoting more “rules based” approaches to...
Tipo: Report Palavras-chave: Zambia; Maize; Trade; Price; Crop Production/Industries; Marketing; Q11.
Ano: 2009 URL: http://purl.umn.edu/54499
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MARKETING AND CROP INSURANCE COMBINED TO MANAGE RISK ON A CASS COUNTY REPRESENTATIVE FARM AgEcon
Clow, Aaron D.; Flaskerud, George K..
This study analyzed the effects that the use of crop insurance products and marketing alternatives had on the gross revenue per acre for an individual farm in Cass County. Crop insurance products and marketing strategies were analyzed individually to determine if they were effective in minimizing down side risk, and combined to determine if integration created synergies. A whole farm scenario analysis was run that included integrated strategies that implemented the same insurance coverage and marketing alternatives for each crop. Several general conclusions can be drawn for situations similar to the representative farm. When analyzed at the individual crop level, the use of crop insurance at the 65 percent level minimizes down side risk in wheat and corn,...
Tipo: Working or Discussion Paper Palavras-chave: Risk; Management; Strategy; Yield; Price; Insurance; Market; Risk and Uncertainty.
Ano: 2001 URL: http://purl.umn.edu/23517
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Payments under the Average Crop Revenue Program: Implications for Government Costs and Producer Preferences AgEcon
Cooper, Joseph C..
This paper develops a stochastic model for comparing payments to U.S. corn producers under the U.S. Senate’s Average Crop Revenue Program (ACR) versus payments under the price-based marketing loan benefit and countercyclical payment programs. Using this model, the paper examines the sensitivity of the density function for payments to changes in expected price levels. We also assess the impact of the choice of yield aggregation used in the ACR payment rate on the mean and variance of farm returns. We find that ACR payments lower the producer’s coefficient of variation of total revenue more than does the price-based support, although ACR may not raise mean revenue as much. While corn farmers in the heartland states might still prefer to receive the...
Tipo: Journal Article Palavras-chave: Domestic support; Counter-cyclical payments; Revenue; Price; Corn; Yield; Pairs bootstrap; Kernel density; Combinatorial optimization; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/49864
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A Revenue-Based Alternative to the Counter-Cyclical Payment Program AgEcon
Cooper, Joseph C..
This paper develops a stochastic model for comparing payments to U.S. corn producers of a revenue-based counter-cyclical payment (R-CCP) that is offered as an alternative in the 2007 House "Farm Bill" (H.R. 2419) to the current price-based CCP (P-CCP). We minimize the potential for miss-specification bias in the model by using nonparametric and semi-nonparametric approaches as specification checks in the model. Using this model, the paper examines the sensitivity of the density function for payments to changes in expected price levels. A mean-variance utility function approach is used to assess producer preferences for choice of CCP program alternative. The results show that as risk reduction instruments at the farm level, there appears to be little...
Tipo: Conference Paper or Presentation Palavras-chave: Domestic support; Counter-cyclical payments; Revenue; Price; Corn; Yield; Pairs bootstrap; Kernel density; Semi-nonparametric; Combinatorial optimization; Agricultural and Food Policy; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/6197
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ACRE: A Revenue-Based Alternative to Price-Based Commodity Payment Programs AgEcon
Cooper, Joseph C..
This paper develops a stochastic model for estimating the probability density function of the Average Crop Revenue Election (ACRE), a revenue-based commodity support payment that is offered under the 2008 Farm Act as an alternative to the traditional suite of price-based commodity payments, that is, marketing loan benefits and counter-cyclical payments. We minimize the potential for miss-specification bias in the model by using nonparametric and semi-nonparametric approaches as specification checks in the model. Our simulation results show that adding ACRE revenue payments to gross revenue reduced the downside risk in revenue for corn, wheat, and soybean farmers in 2009 in the four locations examined, with reductions ranging from 4% to 25%. Integrating...
Tipo: Conference Paper or Presentation Palavras-chave: Domestic support; Average crop revenue election; Loan deficiency payments; Counter-cyclical payments; Revenue; Price; Corn; Yield; Pairs bootstrap; Kernel density; Semi-nonparametric; Combinatorial optimization; Negative exponential utility function; Agricultural and Food Policy; Demand and Price Analysis.
Ano: 2009 URL: http://purl.umn.edu/49180
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A Model of Inflation for Sri Lanka AgEcon
Cooray, Arusha.
This paper uses two models: an open economy model and a closed economy model to estimate a price equation for Sri Lanka. The results suggest greater support for the open economy model. Consistent with previous studies for Sri Lanka, supply side factors appear to be important in influencing the general price level in Sri Lanka.
Tipo: Journal Article Palavras-chave: Sri Lanka; Inflation; Price; Nested - non nested models; Cointegration; Error correction; Farm Management; E31; E64; C51; C52.
Ano: 2008 URL: http://purl.umn.edu/50017
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Estimativa do custo de producao da carne bovina para a regiao Centro-oeste: setembro de 1986. Infoteca-e
COSTA, F. P.; PACHECO, J. A. de C.; CORREA, E. S.; ARRUDA, Z. J. de.
bitstream/item/138579/1/COT-30.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Brasil; Aspecto economico; Sistema; Regiao centro-oeste; Indicador; Production; Cost; Price; Economic conditions; System; West central region.; Bovino; Carne; Custo; Preço; Produção.; Cattle; Brazil; Meat..
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317598
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The Marketing Performance of Illinois and Kansas Wheat Farmers AgEcon
Dietz, Sarah N.; Aulerich, Nicole M.; Irwin, Scott H.; Good, Darrel L..
The purpose of this paper is to investigate the marketing performance of wheat farmers in Illinois and Kansas over 1982-2004. The results show that farmer benchmark prices for wheat in Illinois and Kansas fall in the middle-third of the price range about half to three-quarters of the time. Consistent with previous studies, this refutes the contention that Illinois and Kansas wheat farmers routinely market the bulk of their wheat crop in the bottom portion of the price range. Tests of the average difference between farmer and market benchmark prices are sensitive to the market benchmark considered. Marketing performance of wheat farmers in Illinois and Kansas is about equal to the market if 24- or 20-month market benchmarks are used, is slightly above the...
Tipo: Conference Paper or Presentation Palavras-chave: Benchmarks; Illinois; Kansas; Marketing; Performance; Price; Wheat; Agricultural Finance.
Ano: 2008 URL: http://purl.umn.edu/37622
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The Marketing Performance of Illinois and Kansas Wheat Farmers AgEcon
Dietz, Sarah N.; Aulerich, Nicole M.; Irwin, Scott H.; Good, Darrel L..
The purpose of this paper is to analyze the marketing performance of wheat farmers in Illinois and Kansas over 1982–2004. The results show that farmer benchmark prices for wheat in Illinois and Kansas fall in the middle third of the price range about half to three-quarters of the time. Consistent with previous studies, this refutes the contention that Illinois and Kansas wheat farmers routinely market the bulk of their wheat crop in the bottom portion of the price range. Tests of the average difference between farmer and market benchmark prices are sensitive to the market benchmark considered. The marketing performance of wheat farmers in Illinois and Kansas is about equal to the market if a 24- or 20-month market benchmark is used, slightly above the...
Tipo: Journal Article Palavras-chave: Benchmarks; Illinois; Kansas; Marketing; Performance; Price; Wheat; Agribusiness; Crop Production/Industries; Marketing; Production Economics; Productivity Analysis; Q11; Q13.
Ano: 2009 URL: http://purl.umn.edu/48762
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Alternative Instruments for Ensuring Food Security and Price Stability in Zambia AgEcon
Dorosh, Paul A.; Dradri, Simon; Haggblade, Steven.
Given heavy dependence on rainfed maize production, Zambia must routinely cope with pronounced production and consumption volatility in their primary food staple. Typical policy responses include increased food aid flows, government commercial imports and stock releases, and tight controls on private sector trade. This paper examines recent experience in Zambia, using a simple economic model to assess the likely impact of maize production shocks on the domestic maize price and on staple food consumption under alternative policy regimes. In addition to an array of public policy instruments, the analysis evaluates the quantitative impact of two key private sector responses in moderating food consumption volatility— private cross-border maize trade and...
Tipo: Report Palavras-chave: Food security; Policy; Zambia; Africa; Price; Crop Production/Industries; Food Security and Poverty; Q18.
Ano: 2007 URL: http://purl.umn.edu/54488
Registros recuperados: 80
Primeira ... 1234 ... Última
 

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