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Registros recuperados: 12
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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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A Latent-Variable Approach to Modelling Multiple and Resurgent Meat Scares in Italy AgEcon
Mazzocchi, Mario; Lobb, Alexandra E..
This paper aims to measure the time pattern of multiple and resurgent food scares and their direct and cross-product impacts on consumer response. The Almost Ideal Demand System (AIDS) is augmented by a flexible stochastic framework which has no need for additional explanatory variables such as a media index. Italian aggregate household data on meat demand is used to assess the time-varying impact of a resurgent BSE crisis (1996 and 2000) and the 1999 Dioxin crisis. The impact of the first BSE crisis on preferences seems to be reabsorbed after a few months. The second wave of the scare at the end of 2000 had a much stronger effect on preferences and the positive shift in chicken demand continued to persist after the onset of the crisis. Empirical results...
Tipo: Conference Paper or Presentation Palavras-chave: Meat demand; BSE; Shock; Almost Ideal Demand System; Kalman filter; Food Consumption/Nutrition/Food Safety; D12; I12.
Ano: 2005 URL: http://purl.umn.edu/24509
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An Empirical Assessment of Endogeneity Issues In Demand Analysis for Differentiated Products AgEcon
Dhar, Tirtha Pratim; Chavas, Jean-Paul; Gould, Brian W..
This article explores the issue of price and expenditure endogeneity in empirical demand analysis. The analysis focuses on the US carbonated soft drink market. We test the null hypothesis that price and expenditures are exogenous in the demand for carbonated soft drinks. Using an Almost Ideal Demand System (AIDS) specification, we strongly reject exogeneity for both prices and expenditures. We find that accounting for price/expenditures endogeneity significantly impacts demand elasticity estimates. We also evaluate the implications of endogeneity issues for testing weak separability.
Tipo: Working or Discussion Paper Palavras-chave: Endogeneity; Separability; Carbonated soft drinks; Almost Ideal Demand System; Demand and Price Analysis.
Ano: 2002 URL: http://purl.umn.edu/25227
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CHINESE CONSUMER DEMAND FOR ANIMAL PRODUCTS AND IMPLICATIONS FOR U.S. PORK AND POULTRY EXPORTS AgEcon
Wang, Qingbin; Fuller, Frank H.; Hayes, Dermot J.; Halbrendt, Catherine K..
This paper examines Chinese consumer preference for major animal products and assesses the potential impacts of a reduction in China's import tariff on its pork and poultry demand and net import. Our analysis suggests that China's demand for animal products will continue to grow as income increases. Using a trade model, results of our scenario analysis indicate that a reduction in China's import tariffs will significantly increase its net pork and poultry imports and the U.S. will capture most of the increases. Nevertheless, the impact on the market price in China and the U.S. is likely to be very small.
Tipo: Journal Article Palavras-chave: Almost Ideal Demand System; China; Consumer demand; Demand elasticity; Food demand; Partial equilibrium model; Two-stage budgeting; U.S. meat export; Demand and Price Analysis; International Relations/Trade.
Ano: 1998 URL: http://purl.umn.edu/15102
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FAT TAX: A POLITICAL MEASURE TO REDUCE OVERWEIGHT? THE CASE OF GERMANY AgEcon
Thiele, Silke.
Using an Almost Ideal Demand System food price elasticities for German households are calculated. These elasticities serve as a basis to simulate the effect of the substitutions of different food types due to a tax on saturated fat. The change of food structure causes effects on the energy and nutrient supply of individuals as well as, on consumer welfare. These effects are analyzed for different German household groups. It is found that decreases in energy and fat intake are small but potentially effective especially for low-income households. However, due to the collateral decrease of nutrients which Germans have deficient supply of, the total health effects of a fat tax remain unclear. Furthermore the results show that low-income groups would bear...
Tipo: Conference Paper or Presentation Palavras-chave: Fat tax; Foods; Nutrients; Welfare effects; Almost Ideal Demand System; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; D12; Q18; P46; I12.
Ano: 2010 URL: http://purl.umn.edu/116393
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Food Scares and Demand Recovery Patterns: An Econometric Investigation AgEcon
Mazzocchi, Mario.
This paper aims to propose a flexible stochastic approach to measure the time pattern of a food scare, which does not require the inclusion of additional explanatory variables such as a media coverage indices and easily accommodates the reoccurrence of the same or different scares. We show the results of an application to Italian demand for beef and chicken, which has been affected by the BSE and dioxin scares over the last decade.
Tipo: Conference Paper or Presentation Palavras-chave: Demand analysis; Food scare; BSE; Almost Ideal Demand System; Kalman filter; Food Consumption/Nutrition/Food Safety.
Ano: 2004 URL: http://purl.umn.edu/24990
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IMPORT DEMAND FOR DISAGGREGATED FRESH FRUITS IN JAPAN AgEcon
Schmitz, Troy G.; Seale, James L., Jr..
Using annual Japanese fresh fruit import data from 1971 to 1997, this study analyzes the import patterns of Japan's seven most popular fresh fruits by implementing and testing a general differential dmand system that nests four alternative import demand specifications. When tested against the general system using the five-good case (bananas, grapefutis, oranges, and lemons and aggregating pineapples, berries, and grapes), the analysis rejects the Almost Ideal Demand System and National Bureau of Research specifications but does not reject Rotterdam and Central Bureau of Statistics models. When estimated using the six-good case (bananas, grapefuits, oranges, lemons, and pineapples and aggregating berries and grapes), the analysis rejects all...
Tipo: Journal Article Palavras-chave: Almost Ideal Demand System; Consumer demand; Fruit; Import demand; Japan; Rotterdam; Demand and Price Analysis; C3; F1; Q0.
Ano: 2002 URL: http://purl.umn.edu/15081
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Import Demand for Disaggregated Fresh Fruits in Japan AgEcon
Schmitz, Troy G.; Seale, James L., Jr..
Using annual Japanese fresh fruit import data from 1971-1997, this study analyzes the import patterns of Japan's seven most popular fresh fruits by implementing and testing a general differential demand system that nests four alternative import demand specifications. When tested against the general system using the five-good case (bananas, grapefruits, oranges, and lemons and aggregating pineapples, berries, and grapes), the analysis rejects the AIDS and NBR specifications, but does not reject Rotterdam and CBS. When estimated using the six-good case (bananas, grapefruits, oranges, lemons, pineapples, and aggregating berries and grapes), the analysis rejects all specifications except the Rotterdam model.
Tipo: Working or Discussion Paper Palavras-chave: Almost Ideal Demand System; Consumer demand; Fruit; Import demand; Japan; Rotterdam model; Demand and Price Analysis; International Relations/Trade.
Ano: 2002 URL: http://purl.umn.edu/15639
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Imports versus Domestic Production: A Demand System Analysis of the U.S. Red Wine Market AgEcon
Seale, James L., Jr.; Merchant, Mary.
This research estimates price and expenditure elasticities of U.S. red wine imports from five countries--Italy, France, Spain, Australia, and Chile--which are compared to elasticities of domestically produced red wine using the first-difference version of the almost ideal demand system (AIDS). Expenditure elasticity results indicate that if U.S. total expenditures on red wine increase, domestic producers would gain most. Empirical results for conditional own-price elasticities of demand indicate that U.S. and Chilean red wines are elastic while U.S. demand for red wines from other countries are highly inelastic. Due to the magnitude of consumption of U.S. domestic red wines relative to imports, an increase in the price of U.S. wine results in a decline in...
Tipo: Working or Discussion Paper Palavras-chave: Imports; Red wines; Almost Ideal Demand System; AIDS; Demand and Price Analysis; International Relations/Trade.
Ano: 2002 URL: http://purl.umn.edu/15637
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Socially Optimal Taxation of Alcohol: The Case of Czech Beer AgEcon
Janda, Karel; Mikolasek, Jakub; Netuka, Martin.
The proposed paper belongs to the literature on food demand and optimal taxation and to the literature dealing with economics of alcohol production and consumption. We investigate the question of optimal taxation for the commodity whose consumption has positive and negative features both for individual consumer and for the society. The commodity we analyze is the Czech beer.
Tipo: Conference Paper or Presentation Palavras-chave: Almost Ideal Demand System; Alcohol; Beer; Brewing industry; Consumption; The Czech Republic; Elasticity; Price; Spirits; Tax; Wine.; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Health Economics and Policy; Public Economics; D12; L66; Q18.
Ano: 2010 URL: http://purl.umn.edu/61464
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Some Further Discussion on the Price Index for The Almost Ideal Demand System: A Chain Price Index Approach AgEcon
Brown, Mark G.; Lee, Jonq-Ying.
The issue of identification of the parameter α0 in the price index of the Almost Ideal Demand System (AIDS) is examined. In nearly all empirical studies, the model’s likelihood function has been extremely flat in α0, and this parameter has not been able to be estimated. Assumed values are often used. In this paper, an AIDS-like model is developed with an easy- to-calculate chain-price index that replaces the price index in the original AIDS. The model stands by itself with respect to consumer demand theory and flexibility. An empirical analysis of beverage demands gives merit to the specification.
Tipo: Technical Report Palavras-chave: Demand; Almost Ideal Demand System; Differential and level models; Chain price; Demand and Price Analysis.
Ano: 2011 URL: http://purl.umn.edu/121588
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The demand for meat in Egypt: An almost ideal estimation AgEcon
Alboghdady, Mohamed Altabei; Alashry, Mohamed Khairy.
This paper analyzes the demand for meat in Egypt for the period 1990–2005 using the linearized Almost Ideal Demand System to estimate own-price, cross-price and expenditure elasticities. It found that the Marshallian own-price elasticity was the highest for fish, followed by chicken, beef and duck. On the other hand, the crossprice elasticity of beef showed a complementary relationship with the other meat types, except for fish, which is substitutive. Chicken and fish showed a substitutive relationship with all other meat types. Duck showed a substitutive relationship with all meats except rabbit. Mutton and rabbit showed a versatile relationship with the other meat types. The highest substitutive relationship was between mutton and beef. Compensated...
Tipo: Journal Article Palavras-chave: Meat; Almost Ideal Demand System; Seemingly unrelated regressions; Egypt; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/93884
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