Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 40
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
The Impacts of Ethanol on the US Catfish Farm Sector AgEcon
Zheng, Hualu; Muhammad, Andrew; Herndon, Cary W., Jr..
In this study, we estimated catfish feed and farm price reduced form equations. Of particular importance was the impact of the recent increase in grain prices induced by ethanol production on feed cost and farm prices. This relationship was examined using an autoregressive distributed lag (ARDL) model. Results show that a 1% increase in corn prices caused a 0.134% and 0.263% increase in feed prices in the short- and long-run, respectively. Catfish farm prices increased by 0.106% (short-run) and 0.211% (long-run) given a 1% increase in feed prices. Between 2004 and 2008, corn prices increased from $2 to $6 per bushels. Taheripour and Tyner (2008) state that of the total increase, 25% was due to US ethanol subsidies and 75% was due to the increase in the...
Tipo: Conference Paper or Presentation Palavras-chave: Catfish; Price; Catfish feed; Ethanol; Autoregressive distributed lag model; ARDL; Demand and Price Analysis; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/46248
Imagem não selecionada

Imprime registro no formato completo
REDUCING SEASONALITY IN DAIRY PRODUCTION AgEcon
Weldon, Richard N.; Muhammad, Andrew; Kilmer, Richard L..
Tipo: Working or Discussion Paper Palavras-chave: Livestock Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/15685
Imagem não selecionada

Imprime registro no formato completo
Competition between the U.S. and West Africa in International Cotton Trade: A Focus on Import Demand in China AgEcon
Muhammad, Andrew; McPhail, Lihong Lu; Kiawu, James.
We estimate the demand for imported cotton in China and assess the competitiveness of cotton-exporting countries. Given the assertion that African cotton producers are ill affected by U.S. cotton subsidies, our focus is the price competition between the C4 countries (Benin, Burkina Faso, Chad and Mali) and United States in China. Demand estimates are used to project how U.S. prices affect China’s imports by country. In comparing demand projections, results show that the relationship between the United States and the C4 has more to do with how U.S. prices can affect global prices rather than any substitute or competitive relationship in the Chinese market.
Tipo: Conference Paper or Presentation Palavras-chave: Africa; China; Cotton; Demand; Imports; United States; Demand and Price Analysis; International Relations/Trade; F17; Q11; Q17.
Ano: 2011 URL: http://purl.umn.edu/103210
Imagem não selecionada

Imprime registro no formato completo
Nile perch demand in the Netherlands: are exports from Kenya, Tanzania and Uganda source-differentiated? AgEcon
Muhammad, Andrew.
This study examined Nile perch demand in the Netherlands and assessed the importance of country of origin as a determining factor. Import demand equations were estimated using the absolute price version of the Rotterdam model where Nile perch fillets were differentiated by product form (chilled and frozen) and by source country (Kenya, Tanzania and Uganda). The Armington framework (source-differentiation) is often used when estimating import demand for a similar product from different sources; however, the results of this study indicated that country of origin is not a factor in the Netherlands when importing Nile perch. Results showed that the responsiveness of importers to price changes was the same regardless to the supplying country. Likelihood ratio...
Tipo: Journal Article Palavras-chave: Nile perch; The Netherlands; Rotterdam model; Imports; Demand; Kenya; Tanzania; Uganda; Nile perch; Uganda; Tanzania; Kenya; Demand; Imports; Rotterdam model; The Netherlands; Agribusiness.
Ano: 2009 URL: http://purl.umn.edu/53340
Imagem não selecionada

Imprime registro no formato completo
Dynamic Effects of Grain and Energy Prices on the Catfish Feed and Farm Sectors AgEcon
Muhammad, Andrew; Zheng, Hualu.
This study examines the dynamic effects of grain prices and energy prices on catfish feed prices and the price of food-sized catfish at the farm level. Using the autoregressive distributed lag model and bounds testing procedure, a long-run relationship between feed and farm prices and their determinants was confirmed. Given the effect of corn and soybean meal prices on catfish feed prices, and catfish fish feed prices on farm prices, the long-run responsiveness of feed prices to a percentage increase in U.S. ethanol production is 0.325, and the responsiveness of catfish farm prices is 0.064. Although both feed and farm prices increase with ethanol production, the relatively small responsiveness of farm prices when compared with feed prices suggests that...
Tipo: Journal Article Palavras-chave: Catfish; Prices; Autoregressive distributed lag (ARDL) model; Ethanol; Feed; Corn; Soybeans; Agribusiness; Agricultural Finance; Demand and Price Analysis; Financial Economics; Institutional and Behavioral Economics; Marketing; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy; C32; Q11; Q22.
Ano: 2010 URL: http://purl.umn.edu/100520
Imagem não selecionada

Imprime registro no formato completo
The Demand for Imported Apple Juice in the United States AgEcon
Fonsah, Esendugue Greg; Muhammad, Andrew.
This study estimates U.S. demand for imported apple juice by exporting country. Given that China has emerged as the top supplier to the U.S., we focus on the impact of China on competing exporting countries. Results show that U.S. imports from Argentina, Chile, and the rest of the world (ROW) were significantly responsive to apple juice prices in China. U.S. imports from China were significantly responsive to prices in Argentina, Chile and the ROW as well; however, the responsiveness of imports from China to apple juice prices in these countries was relatively smaller than the responsiveness of imports from these countries to China’s price.
Tipo: Report Palavras-chave: Food Consumption/Nutrition/Food Safety; International Relations/Trade.
Ano: 2008 URL: http://purl.umn.edu/55606
Imagem não selecionada

Imprime registro no formato completo
A Descriptive Analysis of Several Caribbean Countries That Import United States Dairy Products AgEcon
Zhang, Xumin; Kilmer, Richard L.; Muhammad, Andrew.
Tipo: Working or Discussion Paper Palavras-chave: International Relations/Trade.
Ano: 2003 URL: http://purl.umn.edu/15699
Imagem não selecionada

Imprime registro no formato completo
U.S. Demand for Source–Differentiated Shrimp: A Differential Approach AgEcon
Jones, Keithly G.; Harvey, David J.; Hahn, William F.; Muhammad, Andrew.
Estimates of price and scale elasticities for U.S. consumed shrimp are derived using aggregate shrimp data differentiated by source country. Own-price elasticities for all countries had the expected negative signs, were statistically significant, and inelastic. The scale elasticities for all countries were positive and statistically significant at the 1% level with only the United States and Ecuador having scale elasticities of less than one. For the most part, the compensated demand effects showed that most of the cross-price effects were positive. Our results also suggest that despite the countervailing duties imposed by the United States, shrimp demand was fairly stable.
Tipo: Journal Article Palavras-chave: CBS; Conditional demand; Countervailing duty; Imports; Scale elasticity; Shrimp; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; C32; D12; Q13; Q22.
Ano: 2008 URL: http://purl.umn.edu/47202
Imagem não selecionada

Imprime registro no formato completo
Estimating a Demand System with Seasonally Differenced Data AgEcon
Harri, Ardian; Muhammad, Andrew; Anderson, John D..
Researchers estimating demand systems have often used annual data even though monthly or quarterly data are available. Monthly data may be avoided because with monthly data it becomes more difficult to specify seasonality, autocorrelation is more likely to be significant, and there is a greater chance of finding significant dynamics in demand. This paper shows how to obtain consistent and asymptotically efficient estimates of a demand system using seasonal differenced data. It also shows that several alternative estimators are either inefficient or implausible for demand systems.
Tipo: Conference Paper or Presentation Palavras-chave: Demand and Price Analysis.
Ano: 2008 URL: http://purl.umn.edu/6427
Imagem não selecionada

Imprime registro no formato completo
A Descriptive Analysis of Canada and Mexico Who Import United States Dairy Products AgEcon
Zhang, Xumin; Kilmer, Richard L.; Muhammad, Andrew.
Tipo: Working or Discussion Paper Palavras-chave: International Relations/Trade.
Ano: 2003 URL: http://purl.umn.edu/15697
Imagem não selecionada

Imprime registro no formato completo
The impact of feed cost on U.S. poultry production: implications for the impact of increased ethanol production AgEcon
Muhammad, Andrew; Whittington, Andrew; Anderson, John D.; Herndon, Cary W., Jr..
Tipo: Journal Article Palavras-chave: Crop Production/Industries; Livestock Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/48779
Imagem não selecionada

Imprime registro no formato completo
Has Exchange Rate Volatility Affected Broiler Trade Flows? AgEcon
Davis, Christopher G.; Karemera, David; Muhammad, Andrew; Wilson, Norbert L.W.; Brooks, Nora L.; Harvey, David J..
Tipo: Conference Paper or Presentation Palavras-chave: Broilers; Exchange rate volatility; Agricultural and Food Policy; International Relations/Trade.
Ano: 2011 URL: http://purl.umn.edu/103807
Imagem não selecionada

Imprime registro no formato completo
Low-Income Countries Are Most Responsive to Income and Food Price Changes AgEcon
Muhammad, Andrew; Meade, Birgit Gisela Saager.
Tipo: Article Palavras-chave: Demand and Price Analysis; Food Security and Poverty.
Ano: 2011 URL: http://purl.umn.edu/121015
Imagem não selecionada

Imprime registro no formato completo
Estimating a Demand System with Seasonally Differenced Data AgEcon
Harri, Ardian; Brorsen, B. Wade; Muhammad, Andrew; Anderson, John D..
Several recent papers have used annual changes and monthly data to estimate demand systems. Such use of overlapping data introduces a moving average error term. This paper shows how to obtain consistent and asymptotically efficient estimates of a demand system using seasonally differenced data. Monte Carlo simulations and an empirical application to the estimation of the U.S. meat demand are used to compare the proposed estimator with alternative estimators. Once the correct estimator is used, there is no advantage to using overlapping data in estimating a demand system.
Tipo: Journal Article Palavras-chave: Autocorrelation; Demand system; Monte Carlo; Overlapping data; Seasonal differences; Agribusiness; Demand and Price Analysis; Financial Economics; Research Methods/ Statistical Methods; C13; Q11; Q13.
Ano: 2010 URL: http://purl.umn.edu/90679
Imagem não selecionada

Imprime registro no formato completo
Competiveness of Latin American Exports in the U.S. Banana Market AgEcon
Muhammad, Andrew; Fonsah, Esendugue Greg; Zahniser, Steven.
U.S. banana demand differentiated by country of origin is estimated using the generalized dynamic Rotterdam model. Results indicate that dynamic factors play a significant role in determining the allocation of U.S. banana expenditures across exporting sources. Of particular interest is Guatemala’s increased share and Costa Rica’s decreased share of U.S. banana supply. A number of factors explained why Guatemala replaced Costa Rica as the leading U.S. supplier in 2007. (1) Guatemala is the least expensive source on average. (2) Habit persistence, adjustment costs, and other dynamic factors favor Guatemala’s exports. (3) Given increases in the relative price of Costa Rica’s bananas, the price competition between Costa Rica and Guatemala is highly...
Tipo: Conference Paper or Presentation Palavras-chave: Bananas; Imports; Demand; Latin America; United States; Demand and Price Analysis; International Relations/Trade; F14; Q11; Q13; Q17.
Ano: 2011 URL: http://purl.umn.edu/98365
Imagem não selecionada

Imprime registro no formato completo
The Emergence of an Agro-Energy Sector: Is Agriculture Importing Instability from the Oil Sector? AgEcon
Muhammad, Andrew; Kebede, Ellene.
Tipo: Journal Article Palavras-chave: Corn; Oil; Ethanol; Biofuels; Prices; Agribusiness; Q11; Q42; Q48.
Ano: 2008 URL: http://purl.umn.edu/94695
Imagem não selecionada

Imprime registro no formato completo
Income Growth in Developing Countries Can Increase U.S. Agricultural Exports AgEcon
Meade, Birgit Gisela Saager; Muhammad, Andrew; Rada, Nicholas E..
Developing and middle-income countries are becoming increasingly important export markets for high-value agricultural products due to population, urbanization, and income growth. The U.S. agricultural export sector is well placed to meet the increasing demand for high-value food products, such as meat, dairy products, and prepared foods. In many developing countries, agricultural productivity growth is the strongest driver of income growth.
Tipo: Article Palavras-chave: Food Security and Poverty; International Relations/Trade.
Ano: 2011 URL: http://purl.umn.edu/121240
Imagem não selecionada

Imprime registro no formato completo
Allowing for Group Effects When Estimating Import Demand for Source and Product Differentiated Goods AgEcon
Muhammad, Andrew.
In this study an import demand model (differential production model) is presented that is used in estimating the demand for source and product differentiated goods simultaneously. Unlike the traditional import demand models, this model can account for changes in relative group expenditures. Expenditure estimates differed when comparing the differential production model and Rotterdam model results. Results showed that if group revenue shares are relatively fixed, then the bias in expenditure estimates due to omitting group effects will be small when using traditional demand models such as the AIDS or Rotterdam models. As relative group shares significantly change and diverge the bias increases, particularly for imports representing a larger share of group...
Tipo: Conference Paper or Presentation Palavras-chave: Import demand; AIDS model; Rotterdam model; Product differentiation; Source differentiation; Demand and Price Analysis; International Relations/Trade; F17; Q17; Q11..
Ano: 2008 URL: http://purl.umn.edu/6364
Imagem não selecionada

Imprime registro no formato completo
A Descriptive Analysis of the Netherlands and the United Kingdom Who Import United States Dairy Products AgEcon
Zhang, Xumin; Kilmer, Richard L.; Muhammad, Andrew.
Tipo: Working or Discussion Paper Palavras-chave: International Relations/Trade.
Ano: 2003 URL: http://purl.umn.edu/15701
Imagem não selecionada

Imprime registro no formato completo
Do U.S. Cotton Subsidies Affect Competing Exporters? An Analysis of Import Demand in China AgEcon
Muhammad, Andrew; McPhail, Lihong Lu; Kiawu, James.
We estimate the demand for imported cotton in China and assess the competitiveness of cotton-exporting countries. Given the assertion that developing countries are negatively affected by U.S. cotton subsidies, our focus is the price competition between the United States and competing exporters (Benin, Burkina Faso, Chad, Mali, India, and Uzbekistan). We further project how U.S. programs affect China’s imports by country. Results indicate that if U.S. subsidies make other exporting countries worse off, this effect is lessened when global prices respond accordingly. If subsidies are eliminated, China’s cotton imports may not fully recover from the temporary spike in global prices.
Tipo: Article Palavras-chave: China; Cotton; Import demand; Rotterdam model; Subsidies; United States; West Africa; International Relations/Trade; F17; Q11; Q17.
Ano: 2012 URL: http://purl.umn.edu/123786
Registros recuperados: 40
Primeira ... 12 ... 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