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Registros recuperados: 35
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A Comparison of Imputation Methods under Large Samples and Different Censoring Levels (PowerPoint) AgEcon
Lopez, Jose Antonio.
PowerPoint Presentation
Tipo: Conference Paper or Presentation Palavras-chave: Imputation methods; Multiple imputation; Censored prices; Protein demand; Elasticities; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Research Methods/ Statistical Methods; C81; Q11; R21.
Ano: 2011 URL: http://purl.umn.edu/109894
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A Comparison of Price Imputation Methods under Large Samples and Different Levels of Censoring. AgEcon
Lopez, Jose Antonio.
Research paper
Tipo: Conference Paper or Presentation Palavras-chave: Consumer/Household Economics; Demand and Price Analysis; Research Methods/ Statistical Methods; Imputation methods; Multiple imputation; Censored prices; Protein demand; Elasticities.
Ano: 2011 URL: http://purl.umn.edu/104498
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An Analysis of Demand Elasticities for Fluid Milk Products in the U.S. AgEcon
Davis, Christopher G.; Blayney, Donald P.; Cooper, Joseph C.; Yen, Steven T..
This study examines retail fluid milk products purchase data from Nielsen 2005 home scan data. The demand for seven categories of fluid milk products were estimated: whole milk, whole flavored milk, reduced fat milk, flavored reduced fat milk, buttermilk, canned milk and all other fluid milk products. Analyses of the purchases of seven fluid milk categories based on the Nielsen 2005 home scan retail data are used to determine the roles marital status, age, race, education, female employment status and location play in the empirical estimations of aggregate demand elasticities. To derive the demand elasticities, a censored translog demand system is used. The results reveal that price and income are the main determinants of demand for fluid milk products...
Tipo: Conference Paper or Presentation Palavras-chave: Nielsen home scan retail data; Milk demand; Elasticities; Fluid milk; Reduced fat milk; Whole milk; Flavored milk; Canned milk; Buttermilk; Non-linear AIDS; Censored translog demand system; Consumer/Household Economics; Demand and Price Analysis; C25; D12; Q11.
Ano: 2009 URL: http://purl.umn.edu/51791
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Analyses of Generic Dairy Advertising, 1984-97 AgEcon
Blisard, Noel; Blayney, Donald P.; Chandran, Ram; Allshouse, Jane E..
Generic advertising raised fluid milk sales about 6.0 percent, or 18.1 billion pounds, between September 1984 and September 1997. Sales of cheese rose by about 6.8 billion pounds (milk equivalent) in the same period because of increased generic advertising. An assessment of 15 cents per hundredweight of milk sold commercially, mandated by the Dairy and Tobacco Adjustment Act of 1983, funded the advertising. Activities of the National Fluid Milk Processor Promotion Board also contributed to increased milk sales over the past year. Gross returns to dairy farmers between September 1984 and September 1997 were estimated to increase by $3.44 for each dollar spent on generic advertising.
Tipo: Report Palavras-chave: Cheese; Fluid milk; Advertising; Demand; Entry; Exit; Distributed lag; Econometrics; Simulation; Elasticities; Milk Processor Education Program; Livestock Production/Industries; Marketing.
Ano: 1999 URL: http://purl.umn.edu/33554
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Crop Revenue and Yield Insurance Demand: A Subjective Probability Approach AgEcon
Shaik, Saleem; Coble, Keith H.; Knight, Thomas O.; Baquet, Alan E.; Patrick, George F..
A multinomial logit is utilized to model the choice of whether to purchase yield or revenue insurance using subjectively elicited survey data. Our results indicate that the demand for crop insurance is inelastic (-0.40), consistent with most earlier yield elasticity estimates, but the elasticity for choices between yield and revenue insurance is found to be relatively more elastic (-0.88).
Tipo: Journal Article Palavras-chave: Crop insurance; Elasticities; Multinomial logit model; Revenue demand; Subjective elicitation; Survey; Agribusiness; Crop Production/Industries; Demand and Price Analysis; Q18.
Ano: 2008 URL: http://purl.umn.edu/47256
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DEMAND FOR FOOD QUANTITY AND QUALITY IN CHINA AgEcon
Gale, H. Frederick, Jr.; Huang, Kuo S..
As their incomes rise, Chinese consumers are changing their diets and demanding greater quality, convenience, and safety in food. Food expenditures grow faster than quantities purchased as income rises, suggesting that consumers with higher incomes purchase more expensive foods. The top-earning Chinese households appear to have reached a point where the income elasticity of demand for quantity of most foods is near zero. China’s food market is becoming segmented. The demand for quality by high-income households has fueled recent growth in modern food retail and sales of premium-priced food and beverage products. Food expenditures and incomes have grown much more slowly for rural and low-income urban households.
Tipo: Report Palavras-chave: China; Food; Consumption; Demand; Income; Elasticities; Engel curve; Households; Rural; Urban; Food Consumption/Nutrition/Food Safety.
Ano: 2007 URL: http://purl.umn.edu/7252
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DEMAND INTERACTION BETWEEN FARMED SALMON AND WILD CAUGHT FISH IN THE UNITED KINGDOM AgEcon
Fofana, Abdulai; Clayton, Patty.
Demand relationships between salmon and a number of wild-caught whitefish and shellfish species using both single equation models and linearised AIDS system framework. The system is well represented although autocorrelation were found in both approaches but this is less of a problem in the systems approach. A cautious interpretation of the results indicated that salmon had a long-run market relationship with the whitefish species of cod, monkfish, saithe, whiting and plaice and with the shellfish species of mussels, nephrops, scallops and shrimp. These groups contain the main seafood species consumed within the United Kingdom, and therefore should include most potential substitutes for salmon.
Tipo: Working or Discussion Paper Palavras-chave: Demand; Salmon; Whitefish; Shellfish; AIDS; Elasticities; Demand and Price Analysis; Resource /Energy Economics and Policy; C32; C22; D12.
Ano: 2003 URL: http://purl.umn.edu/11828
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DERIVED DEMAND FOR WHEAT BY CLASS AgEcon
Terry, Justin J.; Marsh, Thomas L..
To quantify price responsiveness and economic substitutability among wheat classes, derived demand functions were specified from a normalized quadratic profit function. Own-price and cross-price elasticities were estimated for hard red winter, hard red spring, soft wheat (combined red and white), and durum wheat. In general, soft wheat varieties were less responsive to their own price than were hard wheat varieties. Cross-price elasticities indicate that hard red winter wheat, hard red spring wheat, and soft wheat varieties are economic substitutes. Cross-price elasticities are different from those previously reported, which can have important policy implications.
Tipo: Conference Paper or Presentation Palavras-chave: Elasticities; Normalized quadratic; Substitution; Crop Production/Industries; Demand and Price Analysis.
Ano: 2000 URL: http://purl.umn.edu/36457
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Dumping: el caso del jitomate, México 1996 Colegio de Postgraduados
Martínez Damián, Miguel A.; González Sánchez, Renato F..
Aqui se presenta una breve descripción de los eventos relacionados con una acusación de comercio desleal conocida como dumping. Se ilustra el caso del jitomáte mexicano en 1996. En ese momento, un factor de interés para México fue la determinación del daño y la estimación de elasticidades que realizó el gobierno americano. Aquí se presentan cuatro escenarios posibles de los cuales se tiene evidencia mixta en relación a la determinación del daño________ ABSTRACT: Here is a brief description of the events related to an allegation of unfair trade known as dumping. Illustrates the case of Mexican tomatoes in 1996. At that time, a factor relevant to Mexico was the determination of injury and the estimated elasticities that made ​​the U.S. government. Here are...
Tipo: Artículo Palavras-chave: Tomate; Lycopersicon Esculentum; Tomatoe; Comercio desleal; Dumping; México; Elasticidades; Elasticities; Unfair trade; Tomate -Dumping.
Ano: 2002 URL: http://hdl.handle.net/10521/662
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Economic substitution for US wheat food use by class AgEcon
Marsh, Thomas L..
Wheat for food use is conceptualised as an input into flour production and demand is derived from an industry profit function to quantify price responsiveness and economic substitutability across wheat classes. Price and substitution elasticities are estimated for hard red winter, hard red spring, soft red wheat, soft white winter and durum wheat. In general, hard red winter and spring wheat varieties are much more responsive to their own price than are soft wheat varieties and durum wheat. Substitution elasticities indicate that hard red winter and hard red spring wheat are economic substitutes for milling purposes.
Tipo: Article Palavras-chave: Elasticities; Like product; Monte Carlo; Wheat by class; Crop Production/Industries; Food Consumption/Nutrition/Food Safety.
Ano: 2005 URL: http://purl.umn.edu/118503
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Effects of Japanese Import Demand on U.S. Livestock Prices: Comment AgEcon
Kinnucan, Henry W..
A recent study of Miljkovic, Marsh, and Brester estimates that reductions in the Japanese tariff-rate quota between 1993 and 2001 increased U.S. beef prices by $1.03 per cwt and yen depreciation between 1995 and 1998 reduced U.S. hog prices by $0.99 per cwt. Relaxing the assumption that U.S. beef and hog supplies are fixed cuts the total elasticities underlying these estimates by 50% or more. The upshot is that shocks in the Japanese market have little effect on U.S. beef and pork prices. Hence, producers may be better off focusing on domestic issues such as dietary concerns over red meat consumption.
Tipo: Journal Article Palavras-chave: Elasticities; Exchange rates; Import demand; Income; Supply response; Tariffs; Q17; F14; C32.
Ano: 2004 URL: http://purl.umn.edu/43432
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Elasticities for U.S. Wheat Food Use by Class AgEcon
Marsh, Thomas L..
We conceptualize wheat for food use as an input into flour production and derive demand functions to quantify price responsiveness and economic substitutability across wheat classes. Cost, price, and substitution elasticities are estimated for hard red winter, hard red spring, soft red wheat, soft white winter, and durum wheat. In general, hard red winter and spring wheat varieties are much more responsive to their own price than are soft wheat varieties and durum wheat. Morishima elasticities indicate that hard red winter and hard red spring wheat are economic substitutes for milling purposes.
Tipo: Conference Paper or Presentation Palavras-chave: Elasticities; Wheat by class; Economic substitution; Monte Carlo; Food Consumption/Nutrition/Food Safety; C15; C30; Q11.
Ano: 2003 URL: http://purl.umn.edu/57920
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Elastizitäten der Nachfrage privater Haushalte nach Nahrungsmitteln – Schätzung eines AIDS auf Basis der Einkommens- und Verbrauchsstichprobe 2003 AgEcon
Thiele, Silke.
This paper presents price and income elasticities of food demand in Germany. Using cross sectional data from the 2003 German income and consumption survey a Linear Approximate Almost Ideal Demand System is employed. Two aspects which have to be taken into account when using cross-sectional data are insufficient price information and zero expenditures. An approach of COX and WOHLGENANT (1986) is applied to derive quality adjusted prices. In order to take into account censoring of the dependent variables a procedure of SHONKWILER and YEN (1999) was employed. A high expenditure elasticity is found for meat demand. The highest own-price elasticities are for the demand for meat/-products and milk/-products. Within the meat group, beef demand shows a particular...
Tipo: Journal Article Palavras-chave: Food demand; Elasticities; Germany; AIDS; Demand and Price Analysis.
Ano: 2008 URL: http://purl.umn.edu/97604
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Estimating price elasticities of food trade functions: How relevant is the gravity approach? AgEcon
Femenia, Fabienne; Gohin, Alexandre.
The main objective of the paper is related to the long standing issue of the econometric estimation of price elasticity of food trade functions. We investigate the relevance of the prominent gravity approach. This approach is based on the assumptions of symmetric, monotone, homothetic, CES preferences. We test all these assumptions using European intra trade of cheese. In a general way, all assumptions made on preferences by the gravity approach are not supported by our data set. The bias induced on the estimated price elasticities is not univocal.
Tipo: Working or Discussion Paper Palavras-chave: Elasticities; Trade; Generalized Maximum Entropy; Censored demand system; International Relations/Trade.
Ano: 2007 URL: http://purl.umn.edu/7211
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Estimation of a Censored Demand System in Stratified Sampling: An Analysis of Mexican Meat Demand at the Table Cut Level. AgEcon
Lopez, Jose Antonio; Malaga, Jaime E..
Evidence of meat trade in the form of table cuts suggests that consumer preferences and tastes vary across meat cuts. Unlike previous studies, this paper estimates demand elasticities at the table cut level from a Mexican survey of household incomes and expenditures, which is a stratified sample. The study uses the two-step estimation of a censored demand system proposed by Shonkwiler and Yen (1999) but incorporates stratification variables into the estimation procedure. Parameter estimates are reported and its standard errors are approximated by using the bootstrap procedure.
Tipo: Conference Paper or Presentation Palavras-chave: Censored demand system; Two-step estimation procedure; Stratified sampling; Mexican meat demand; Elasticities; Adult equivalent scales; Bootstrap standard errors; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Q11.
Ano: 2009 URL: http://purl.umn.edu/46294
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Factors Affecting Hay Supply and Demand in Tennessee AgEcon
Bazen, Ernest F.; Roberts, Roland K.; Travis, John; Larson, James A..
Understanding the interactions between supply and demand for hay is important because of hay’s significance to the agricultural sector and economy, and because hay is an important crop on highly erodible soils. As an example, Tennessee has the most erodible cultivated cropland in the United States (Denton, 2000), nearly half of the state’s current CRP acreage contracts are set to expire in 2007 (U.S. Department of Agriculture, 2006), and hay is one of the most economically important crops produced in the state (U.S. Department of Agriculture, 2004). Cross (1999) attributed the upward trend in Tennessee hay acreage since 1980 to an increasing number of farmers who were searching for alternative production activities, such as hay, pasture and livestock, to...
Tipo: Conference Paper or Presentation Palavras-chave: Acreage response; Derived demand; Elasticities; Hay; Inverse demand function; Price flexibilities; Yield response; Crop Production/Industries; Demand and Price Analysis; D.
Ano: 2008 URL: http://purl.umn.edu/6889
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Globally Flexible Modeling of County-Level Acreage Response for Primary U.S. Field Crops AgEcon
Cooper, Joseph C.; Arnade, Carlos Anthony.
This study takes the standard acreage response model that stems from an expected utility framework, accounting for both price and yield variability, and nests it within a flexible semi-nonparametric (SNP) model consistent with farm-level decision models for computationally tractable results. We use county-level data to estimate the response of farmers’ planting preferences to changes in revenue and other variables.
Tipo: Conference Paper or Presentation Palavras-chave: Acreage response; Elasticities; Field crops; Semi-nonparametric; Risk; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Land Economics/Use; Production Economics; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2011 URL: http://purl.umn.edu/103240
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Gradual Switching Structural Changes of Meat Consumption in Taiwan AgEcon
Hsu, Jane Lu.
This paper utilized a linear approximate version of the Almost Ideal Demand System to evaluate structural changes of meat consumption in Taiwan. Time transition paths for each product were identified and first-order autocorrelation was taken into consideration. Structural changes of beef consumption (1979-1984) were completed before structural changes of other products had started. Shifting in consumption patterns of pork (1990-1995) and poultry (1988-1994) took about the same time length. Structural changes of fishery products (1994-1996) occurred toward the end of the time period. With the gradual switching time paths, estimated elasticities show that own-price elasticities for pork, beef, and fishery products became more responsive to their own-price...
Tipo: Presentation Palavras-chave: Gradual switching structural changes; Meat consumption; LA/AIDS; Time transition paths; Elasticities; Food Consumption/Nutrition/Food Safety.
Ano: 2000 URL: http://purl.umn.edu/123663
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Hotelling's theory, enhancement, and the taking of the Redwood National Park AgEcon
Berck, Peter; Bentley, William R..
We estimate a reduced form model of the redwood timber industry that is consistent with Hotelling’s exhaustible resource theory. The consequences for this theory of various assumptions about the elasticity of expectations are derived. The estimated equations are used to test the hypotheses about expectations. We also use these equations to find the amount that owners of redwood not taken for the Redwood National Park benefited from the park’s establishment.
Tipo: Working or Discussion Paper Palavras-chave: Economic aspects; Elasticities; Forest products; National parks.
Ano: 1987 URL: http://purl.umn.edu/43662
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Imposing Curvature Conditions on Flexible Functional Forms to GNP Functions AgEcon
Chapda Nana, Guy; Larue, Bruno.
This paper empirically investigates the implications of the imposition of convexity in output prices and concavity in factor endowments on flexible functional forms for the GNP function. Using macroeconomic data for Switzerland, we estimate the Translog and the Symmetric Normalized Quadratic forms to investigate the manner with which curvature restrictions are imposed, the extend of curvature violations and the robustness of estimated elasticities. We also compare the predictive accuracy of the aforementioned flexible functional forms. Our result show that concavity in factor endowments is violated much more often than convexity in output prices. For the Translog, the date at which local restrictions are imposed matters a great deal in terms of remaining...
Tipo: Working Paper Palavras-chave: GNP function; Flexible functional forms; Curvature violations; Elasticities; International Relations/Trade; Research Methods/ Statistical Methods; D24; C30.
Ano: 2012 URL: http://purl.umn.edu/123308
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