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Registros recuperados: 337
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LL601 Contamination and Its Impact on U.S. Rice Prices AgEcon
Li, Yarui; Wailes, Eric J.; McKenzie, Andrew M.; Thomsen, Michael R..
LL601 is a genetically modified rice variety and unapproved for commercial use. Its presence was found in commercial shipments of U.S. rice in 2006. This article explores its impact on prices and volume marketed for both the United States and Thailand, the major export competitor. The results show a significantly adverse but short duration effect on the U.S. rice market and little to no effect on the Thai rice market.
Tipo: Journal Article Palavras-chave: Cointegration; Error correction model; Event study analysis; GM contamination; LibertyLink Rice 601; U.S. rice exports; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Research and Development/Tech Change/Emerging Technologies; C10; C32; Q11; A52.
Ano: 2010 URL: http://purl.umn.edu/57154
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Analysing Wine Demand With Artificial Neural Networks AgEcon
Gerolimetto, M.; Mauracher, Christine; Procidano, I..
In this paper we analyse wine demand in Italy using microdata. Instead of estimating a traditional parametric model (like AIDS) we employed artificial neural networks (ANN) and evaluate the elasticities using two different methods, specific for the non parametric framework. We compared the performances of the two methods to estimate elasticities and put in evidence the relevance of some demographic variables together with the usual economic ones, explaining the consumer's behaviour.
Tipo: Conference Paper or Presentation Palavras-chave: Artificial neural networks; Demand analysis; Wine; Elasticity; Demand and Price Analysis; C14; C21; Q11; Q13.
Ano: 2005 URL: http://purl.umn.edu/24753
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How Predictable are Prices of Agricultural Commodities? – The Possibilities and Constraints of Forecasting Wheat Prices AgEcon
Holst, Carsten.
Wheat price forecasts are very important for traders, farmers and politicians as well. However, only quite accurate price predictions can guide these groups towards making the best decisions. Therefore the well-known wheat price projections of both the OECD and the FAPRI from 1996 on are tested for their predictive accuracy using Theil’s inequality coefficient. Despite the fact that both models could not foresee the price peak which occurred in February 2008, their predictions offer more accurate values than a naive prediction of no price change. Nevertheless, precise price forecasts cannot be expected by the models of the OECD and the FAPRI since some short-run effects such as inappropriate weather are not predictable. Thus, our own econometric model is...
Tipo: Conference Paper or Presentation Palavras-chave: Wheat price forecasts; Predictive accuracy; Theil’s inequality coefficient; Agricultural and Food Policy; Institutional and Behavioral Economics; Political Economy; Q11; Q13.
Ano: 2010 URL: http://purl.umn.edu/90802
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National and Regional Impacts of U.S. Agricultural Exports AgEcon
Paggi, Mechel S.; Rosson, C. Parr, III; Adcock, Flynn J.; Hanselka, Daniel D..
Tipo: Journal Article Palavras-chave: International Trade; Output; Employment; Exports; International Relations/Trade; Q10; Q11; Q13; Q17.
Ano: 2011 URL: http://purl.umn.edu/104208
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Co-integração entre os mercados spot e futuro: evidências dos mercados de boi gordo e soja AgEcon
Abitante, Kleber Giovelli.
One of the measures of future markets’ efficiency is its linkage with the spot market. The objective of this paper is to verify the existence of a statistical linkage between spot market and the Brazilian Mercantile & Future Exchange (BM&F) live cattle future market and between spot market and the BM&F and Chicago Board of Trade (CBOT) soybean future market. In addition, an efficiency indicator for the BM&F live cattle future market was estimated. With regard to live cattle, the daily time series used was price of the future contracts with maturity month between January/05 and November/05 and for soybean, the price of the future contracts used was with maturity between March 2005 until September 2005 and November 2005. Concerning live...
Tipo: Journal Article Palavras-chave: Cointegration; Futures markets; Soybean; Live cattle.; Agribusiness; C32; Q1; Q11.
Ano: 2008 URL: http://purl.umn.edu/61272
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Unit Value Biases in Meat Demand in Indonesia AgEcon
Olivia, Susan; Gibson, John.
Indonesia is an emerging market for beef and cattle exports so estimates of income and price elasticities may help analysts predict future demands. In contrast to developed countries, where meat demand studies often use aggregate data, Indonesian studies rely on household surveys, with unit values (ratios of expenditures to quantities) used instead of market prices. Elasticities estimated from unit values can be subject to various quality and measurement error biases. In this paper, data from 29,000 households on Java are used to estimate a demand system for beef, chicken and other meat groups, and the extent of bias from commonly used estimation strategies is evaluated.
Tipo: Conference Paper or Presentation Palavras-chave: Demand and Price Analysis; D12; Q11.
Ano: 2003 URL: http://purl.umn.edu/58195
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A Hedonic Metric Approach to Estimating the Demand for Differentiated Products: An Application to Retail Milk Demand AgEcon
Gulseven, Osman; Wohlgenant, Michael K..
This article introduces the Hedonic Metric (HM) approach as an original method to model the demand for differentiated products. Using this approach, initially we create an n-dimensional hedonic space based on the characteristic information available to consumers. Next, we allocate products into this space and estimate the elasticities using distances. What distinguishes our model from traditional demand models such as Almost Ideal Demand System (AIDS) and Rotterdam Model is the way we link elasticities with product characteristics. Moreover, our model significantly reduces the number of parameters to be estimated, thereby making it possible to estimate large number of differentiated products in a single demand system. We applied our model to estimate the...
Tipo: Conference Paper or Presentation Palavras-chave: Hedonic Metrics; Distance Metrics; Rotterdam Model; Almost Ideal Demand System; Differentiated Products; Milk Demand.; Food Security and Poverty; C30; C80; Q11; Q13; Q18.
Ano: 2010 URL: http://purl.umn.edu/91675
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The Impact of the E.coli Spinach Outbreak on Acreage Decisions Under Uncertainty AgEcon
Mohr, Belinda Acuna.
This article quantifies the effect of the 2006 food-borne illness spinach outbreak on harvested acreage for the fresh spinach market. In September 2006, fresh spinach contaminated with E. coli O157:H7 caused hundreds of consumer illnesses across the U.S. and a few deaths. The outbreak was detrimental to the spinach industry causing a significant decrease in the demand for spinach. Spinach growers were prohibited from harvesting spinach until more was known about the contamination. According to the Census of Agriculture, harvested spinach acreage for the fresh market fell by 17% from before the outbreak. Due to the unanticipated effects resulting from the outbreak, farms potentially decreased their acreage of fresh market spinach to reduce profit...
Tipo: Conference Paper or Presentation Palavras-chave: Production; Acreage; Uncertainty; Spinach outbreak; Food safety; Agricultural and Food Policy; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Risk and Uncertainty; Q11; Q18.
Ano: 2011 URL: http://purl.umn.edu/103520
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Rice Price Stabilization in Madagascar: Price and Welfare Implications of Variable Tariffs AgEcon
Dorosh, Paul A.; Minten, Bart.
Given the large share of major staples in the budgets of the poor, governments in many developing countries intervene in food markets to limit variation in the prices of staple foods. This paper examines the recent experience of Madagascar in stabilizing prices through international trade and the implications of adjustments in tariff rates. Using a partial equilibrium model, we quantify the overall costs and benefits of a change in import duties for various household groups, and compare this intervention to a policy of targeted food transfers or security stocks.
Tipo: Conference Paper or Presentation Palavras-chave: Food Policy; Price Stabilization; Trade; Sub-Saharan Africa; Crop Production/Industries; International Relations/Trade; Q11; Q17.
Ano: 2006 URL: http://purl.umn.edu/25478
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Grid Pricing: An Empirical Investigation of Market Signal Clarity AgEcon
Fausti, Scott W.; Qasmi, Bashir A.; Li, Jing.
The ability of the grid marketing system for fed cattle to provide an efficient price transmission mechanism is investigated. Nerlove’s (1958) adaptive expectations approach is adopted to model the relationship between grid premiums (discounts) and the weekly relative supply of carcass quality attributes. Linear regression techniques are used to estimate Nerlove’s supply response function. Granger Causality tests are conducted to investigate the relationship between grid premiums (discounts) and the relative supply of carcass quality attributes. Regression estimates and the Granger Causality tests provide empirical support for the 2005 National Beef Quality Audit call for clearer market signals.
Tipo: Working or Discussion Paper Palavras-chave: Grid pricing; Price transmission; Carcass quality; Supply response function; Marketing; Risk and Uncertainty; Q11; D40.
Ano: 2010 URL: http://purl.umn.edu/93253
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AN ASSESSMENT OF DYNAMIC BEHAVIOR IN THE U.S. CATFISH MARKET: AN APPLICATION OF THE GENERALIZED DYNAMIC ROTTERDAM MODEL AgEcon
Muhammad, Andrew; Jones, Keithly G..
Dynamic demand systems have been employed in a number of studies to account for habit formation and inventory adjustments in demand. Few studies have attempted to provide a theoretical foundation for the dynamic demand structures employed. Recently, Bushehri (2003) showed how a generalized dynamic Rotterdam model could be derived from the neoclassical intertemporal utility maximization problem; however, no empirical application is provided in his study. This paper provides an empirical application of the generalized dynamic Rotterdam model to the demand for processed catfish products in the U.S. The two-period dynamic Rotterdam model explained a significant amount of the variation in U.S. catfish demand and was preferred to the one-period and static...
Tipo: Conference Paper or Presentation Palavras-chave: Dynamic; Rotterdam model; Catfish; Demand; Partial adjustment; Demand and Price Analysis; Research Methods/ Statistical Methods; Q11; Q13.
Ano: 2008 URL: http://purl.umn.edu/45912
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Got (Safe) Milk? Chinese Consumers’ Valuation for Select Food Safety Attributes AgEcon
Ortega, David L.; Wang, H. Holly; Wu, Laping; Bai, Junfei; Olynk, Nicole J..
Food safety issues often arise from problems of asymmetric information between consumers and suppliers of food with regards to product-specific attributes or characteristics. Food safety concerns in China are having a drastic impact on consumer behavior, commodity markets, international trade and food security. An additional challenge to the problem of asymmetric information lies in the inherent structure of the governing bodies which oversee food safety and quality. Unlike the United States and other developed countries, China’s food safety is regulated by several government entities with different and sometimes overlapping responsibilities. As a result consumers don’t have a comprehensive food safety and quality system on which to base their economic...
Tipo: Conference Paper or Presentation Palavras-chave: China; Choice experiment; Mixed logit; Latent class logit; Food safety; Preference heterogeneity; Willingness-to-pay; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Marketing; Q11; Q18.
Ano: 2011 URL: http://purl.umn.edu/98723
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Transmission des hausses des prix internationaux des produits alimentaires en Afrique de l’Ouest : Leçons de la crise de 2007-2008 pour l’expansion de la production AgEcon
Diallo, Boubacar Cisse; Dembele, Niama Nango; Staatz, John M.; Cisse, Moussa; Adjao, Ramziath.
CONFERENCE INTERNATIONALE SUR LES BIOCARBURANTS EN AFRIQUE : Les biocarburants, facteur d’insécurité ou moteur de développement (Ouagadougou, Burkina Faso 10-12 Novembre 2009)
Tipo: Working or Discussion Paper Palavras-chave: Price transmission; Agriculture; Africa; Food security; Agricultural and Food Policy; Food Security and Poverty; Marketing; Q11.
Ano: 2009 URL: http://purl.umn.edu/57244
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Food or Fuel? Choices and Conflicts AgEcon
Elam, Thomas E..
Tipo: Journal Article Palavras-chave: Ethanol; Corn Prices; Biofuels Policy; Tax Credits; RFS; Food versus Fuel; Food Security and Poverty; Resource /Energy Economics and Policy; Q28; Q11.
Ano: 2010 URL: http://purl.umn.edu/94664
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Impact of a corn stover market on corn and soybean production: empirical estimation AgEcon
Kurkalova, Lyubov A..
We quantify empirically the shifts in corn and soybean production possibilities frontier under alternative corn stover prices.
Tipo: Conference Paper or Presentation Palavras-chave: Corn stover; Production possibilities frontier; Production Economics; Q11; Q42.
Ano: 2011 URL: http://purl.umn.edu/103582
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Does Price or Income Affect Organic Choice? Analysis of U.S. Fresh Produce Users AgEcon
Smith, Travis A.; Huang, Chung L.; Lin, Biing-Hwan.
This study analyzes consumer purchasing behavior of organic fresh fruits and vegetables using the 2006 Nielsen Homescan panel. An ordered logit model was estimated to quantify the impacts of economic and socio-demographic factors on the probability of a household belonging to a specific organic user group—devoted, casual, or nonuser. Results suggest that price and income, to some extent, affect consumer purchases of organic produce. Additionally, the profile of an organic produce user is most likely to consist of an Hispanic household residing in the Western United States with children under 6 years old and a household head older than 54 years with at least a college degree.
Tipo: Journal Article Palavras-chave: Nielsen Homescan data; Ordered logit; Organic fruits and vegetables; User groups; Agribusiness; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; C25; D12; M31; Q11.
Ano: 2009 URL: http://purl.umn.edu/56659
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Returns in Commodities Futures Markets and Financial Speculation: A Multivariate GARCH Approach AgEcon
Manera, Matteo; Nicolini, Marcella; Vignati, Ilaria.
This paper analyses futures prices for four energy commodities (light sweet crude oil, heating oil, gasoline and natural gas) and five agricultural commodities (corn, oats, soybean oil, soybeans and wheat), over the period 1986-2010. Using CCC and DCC multivariate GARCH models, we find that financial speculation is poorly significant in modelling returns in commodities futures while macroeconomic factors help explaining returns in commodities futures. Moreover, spillovers between commodities are present and the conditional correlations among commodities are high and time-varying.
Tipo: Working Paper Palavras-chave: Energy; Commodities; Futures Markets; Financial Speculation; Multivariate GARCH; Financial Economics; C32; G13; Q11; Q43.
Ano: 2012 URL: http://purl.umn.edu/122868
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Food Calorie Intake and Food Security under Grain Price Inflation: Evidence from Malawi AgEcon
Pan, Suwen; Fang, Cheng; Sanogo, Issa; Mutuc, Maria Erlinda M..
A comprehensive analysis of food demand and nutrient consumption using recent, representative household survey data from Malawi is presented. Expenditure and price elasticities have been estimated for 20 food groups using a quadratic almost ideal demand system based on 4 income groups identified by the Goldfeld-Quandt tests. Although the current boom of maize price provides an opportunity to rethink development strategies that diversify the commodity sectors, developing countries will not necessarily benefit from this change absent significant improvements in production capacities and trade infrastructures. Malawi is likely to suffer from higher commodity prices in the short-run.
Tipo: Conference Paper or Presentation Palavras-chave: Goldfeld-Quandt tests; A quadratic almost ideal demand system; Malawi; Agricultural and Food Policy; Consumer/Household Economics; Food Security and Poverty; D12; O13; R21; R31; Q11; Q12.
Ano: 2011 URL: http://purl.umn.edu/103266
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Staple food prices in Kenya AgEcon
Ariga, Joshua; Jayne, Thomas S.; Njukia, Stephen.
Prepared for the COMESA policy seminar on “Variation in staple food prices: Causes, consequence, and policy options”, Maputo, Mozambique, 25-26 January 2010 under the Comesa-MSU-IFPRI African Agricultural Marketing Project (AAMP)
Tipo: Conference Paper or Presentation Palavras-chave: Kenya; Food security; Food prices; Agricultural and Food Policy; Food Security and Poverty; International Development; International Relations/Trade; Q11; Q13; Q18.
Ano: 2010 URL: http://purl.umn.edu/58559
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Did the Fischler reform increase market integration between the EU and world commodity markets? AgEcon
Mela, Giulio.
This work assesses the extent to which h the Fischler reform of the CAP increased the elasticity of price transmission (EPT) between the world and the European agricultural commodity markets. Commodities considered are soft and durum wheat, corn, feed barley, and butter. Results show that the reform increased ETP for all commodities even though with different magnitude. Before reform implementation (January 2007), the ETP was almost zero (meaning market isolation) for soft wheat, feed barley, and butter, while it was relatively low (0.4) for corn and durum. After January 2007, the EPT increased to almost unity (perfect transmission) for soft wheat and barley, to 0.9 and 0.8 for durum and corn, and to 0.5 for butter, which had historically been amongst the...
Tipo: Presentation Palavras-chave: Price transmission elasticity; Fischler reform; Structural breaks; Agricultural commmodity prices; International Relations/Trade; Q11; Q18; Q13; C22.
Ano: 2012 URL: http://purl.umn.edu/124107
Registros recuperados: 337
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