Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A dynamic model of oligopoly in the coffee export market AgEcon
Karp, Larry S.; Perloff, Jeffrey M..
A linear-quadratic, dynamic feedback oligopoly model that nests various market structures is used to estimate the degree of competitiveness and the adjustment paths of the two largest coffee exporters, Brazil and Colombia. Their estimated behavior is relatively competitive. This subgame perfect dynamic model is-compared to a standard static oligopoly model and the open-loop model (the dynamic generalization of the standard static model). Both classical and Bayesian tests of open-loop and feedback dynamic models are reported.
Tipo: Working or Discussion Paper Palavras-chave: Coffee; Dynamic oligopoly; Econometric; Subgame perfect Nash; Industrial Organization; International Relations/Trade; Research Methods/ Statistical Methods.
Ano: 1990 URL: http://purl.umn.edu/6093
Imagem não selecionada

Imprime registro no formato completo
Forecasting Hog Prices with a Neural Network AgEcon
Hamm, Lonnie; Brorsen, B. Wade.
Neural network models were compared to traditional forecasting methods in forecasting the quarterly and monthly farm price of hogs. A quarterly neural network model forecasted poorly in comparison to a quarterly econometric model. A monthly neural network model outperformed a monthly ARIMA model with respect to the mean square error criterion and performed similarly to the ARIMA model with respect to turning point accuracy. The more positive results of the monthly neural network model in comparison to the quarterly neural network model may be due to nonlinearities in the monthly data which are not in the quarterly data.
Tipo: Journal Article Palavras-chave: Forecasting; Hog prices; Neural networks; ARIMA; Econometric; Agribusiness; Livestock Production/Industries.
Ano: 1997 URL: http://purl.umn.edu/90646
Imagem não selecionada

Imprime registro no formato completo
Fronteiras estocásticas, dualidades neoclássica e eficiência econômica na produção de frangos de corte. Repositório Alice
TUPY, O..
O segmento de producao de frangos de corte e basico na industria avicola. Esta, insere-se em um mercado competitivo, onde operar com eficiencia economica e fundamental para a sobrevivenciadas empresas. Assim, torna-se extremamente importante monitorar a eficiencia economica da firma, uma vez que firmas pouco eficientes serao certamente afastadas do mercado. Com esta perpectiva, o presente trabalho, estimoua a eficiencia economica na producao de frangos de corte de empresas avicolas do sul e sudeste do Brasil. Nove empresas, representando aproximadamente 20% da producao brasileira de frangos de corte, foram analisadas entre janeiro de 1995 e abril de 1996.
Tipo: Tese/dissertação (ALICE) Palavras-chave: Frangos de corte; Producao de frango; Eficiencia economica; Econometria; Modelo de Cobb Douglas; Poultry production; Economic efficiency; Econometric.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/43636
Imagem não selecionada

Imprime registro no formato completo
Measuring Competition between Non-Food and Food Demand on World Grain Markets : Is Biofuel Production Compatible with Pressure for Food Production ? AgEcon
Benjamin, Catherine; Houee-Bigot, Magalie.
The flow of agricultural products between countries is conditioned by several factors including domestic and trade policy tools for the main competing exporters countries, and macroeconomic variables (such as real income per capita, rate of population growth,etc). Important structural changes are occurring on world agricultural markets that will have an impact on the long term competitiveness of countries and regions. These changes include developments in biofuels production linked to policy incentives, and the rapid growth in income and population numbers in some developing countries (such as India and China). An important issue is to identify the factors that are going to modify the balance between the supply and demand for agricultural products in the...
Tipo: Conference Paper or Presentation Palavras-chave: Modeling; Econometric; Partial equilibrium; Land uses; Biofuels; Demand and Price Analysis; International Relations/Trade.
Ano: 2007 URL: http://purl.umn.edu/9854
Imagem não selecionada

Imprime registro no formato completo
The Estimation of Food Demand Elasticities in Canada AgEcon
Pomboza, Ruth; Mbaga, Msafiri Daudi.
Changing consumer and market demands is an important driver behind the challenges and opportunities that are facing the agriculture and agri-food sector in Canada and that will influence the sector's profitability and competitiveness in the future. It is therefore important to understand developments in the consumer demand for agriculture and agri-food products. The report provides updated demand elasticities for fourteen food groups in Canada. The estimates are useful for conducting analysis of the changing structure of the agriculture and agri-food sector and can help quantify the impacts that changes in economic variables and policies that impact those economic variables might have.
Tipo: Report Palavras-chave: Food; Demand; Demand analysis; Elasticities; Price elasticities; Cross price elasticities; Income elasticities; Price; Econometric; Modelling; Agribusiness; Agricultural and Food Policy; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Financial Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Labor and Human Capital; Land Economics/Use; Livestock Production/Industries; Marketing; Production Economics; Public Economics.
Ano: 2007 URL: http://purl.umn.edu/52705
Imagem não selecionada

Imprime registro no formato completo
The Impact Of Socio-Demographic Factors And Political Perceptions On Consumer Attitudes Towards Genetically Modified Foods: An Econometric Investigation AgEcon
Antonopoulou, Lina; Papadas, Christos T.; Targoutzidis, Antonis.
This survey-based paper investigates the impact of socio-demographic factors, along with political perceptions, as expressed by attitudes towards globalization, on consumer attitudes towards GM foods, in Greece. Different aspects of consumer attitudes regarding GM foods are examined, such as general preference, banning, labeling, intention to purchase them at a sufficiently low price, the nutritional category of food product and the proximity of the genetic modification to the final product. Econometric analysis using Logit and Probit models was conducted. Estimates clearly show that in general, attitudes towards GM foods are not affected by socio-demographic characteristics. However, political perceptions are a significant influential factor.
Tipo: Journal Article Palavras-chave: Globalization; Political; Genetically modified food; Econometric; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; D12; M31; R22.
Ano: 2009 URL: http://purl.umn.edu/58062
Registros recuperados: 6
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional