Consulta: subjectFacets:"Elasticity"
Registros recuperados: 46
Data/hora: 10/06/2024 11:45:31

La demanda de agua para uso doméstico y comercial en Texcoco de Mora, Estado de México.
Provedor de dados: 32
Autores: Gómez Ugalde, Sandra Gabriela.
Con el objetivo de cuantificar la demanda de agua promedio por usuario en el sector doméstico y comercial en Texcoco de Mora, Estado de México, caso particular del servicio medido; ante la problemática de la sobreexplotación de los mantos en el Acuífero de Texcoco, se planearon dos modelos econométricos de regresión múltiple. Con estos se determinaron las principales variables que afectan la demanda de agua por usuario y bimestre, los cuales son: el precio o tarifa del agua, el ingreso, la tarifa eléctrica y el consumo de agua del bimestre anterior.Los resultados señalan que la demanda responde de manera inelástica al precio en el sector doméstico y elástica en el sector comercial. Con coeficientes de elasticidad precio propia de -0.43 y -1.03 para el...
Palavras-chave: Demanda de agua; Sobrexplotación; Elasticidad; Water demand; Over exploitation; Elasticity; Maestría; Economía.
Ano: 2011
URL: http://hdl.handle.net/10521/487

El mercado de la carne bovina en México, 1970-2011.
Provedor de dados: 32
Autores: Cruz Jiménez, Joaquín.
La proteína de origen animal es básica en la dieta de los mexicanos y las fuentes principales  de ésta son las carnes de ave, bovino y porcino, de las que en 2011 se consumieron 60 kilogramos por persona, correspondiendo a la de bovino 16.5 kilogramos. En este estudio se identifica a las principales variables determinantes del mercado de carne de bovino en México y se estima el efecto de dichas variables considerando los precios de importación de la carne y de maíz y sorgo. Para establecer y cuantificar el efecto sobre el mercado de sus principales variables determinantes se diseñó un modelo econométrico de ecuaciones simultáneas que fue estimado por mínimos cuadrados en dos etapas con información secundaria para el periodo de 1970 a 2011. Los resultados...
Palavras-chave: Bovino; Granos forrajeros; Elasticidad; Saldo de comercio; Oferta; Demanda; Cattle; Feed grains; Elasticity; Balance of trade; Supply; Demand; Economía; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1881

La demanda de agua para uso doméstico y comercial en Texcoco de Mora, Estado de México.
Provedor de dados: 32
Autores: Gómez Ugalde, Sandra Gabriela.
Con el objetivo de cuantificar la demanda de agua promedio por usuario en el sector doméstico y comercial en Texcoco de Mora, Estado de México, caso particular del servicio medido; ante la problemática de la sobreexplotación de los mantos en el Acuífero de Texcoco, se planearon dos modelos econométricos de regresión múltiple. Con estos se determinaron las principales variables que afectan la demanda de agua por usuario y bimestre, los cuales son: el precio o tarifa del agua, el ingreso, la tarifa eléctrica y el consumo de agua del bimestre anterior.Los resultados señalan que la demanda responde de manera inelástica al precio en el sector doméstico y elástica en el sector comercial. Con coeficientes de elasticidad precio propia de -0.43 y -1.03 para el...
Palavras-chave: Demanda de agua; Sobrexplotación; Elasticidad; Water demand; Over exploitation; Elasticity; Maestría; Economía.
Ano: 2011
URL: http://hdl.handle.net/10521/487

Mercado del plátano en México 1971-2010, un modelo econométrico.
Provedor de dados: 32
Autores: González Machorro, María Félix.
El plátano (Musa paradisiaca) es una fruta de consumo generalizado en México, debido a su alto valor nutritivo, disponibilidad durante todo el año y por su precio relativamente bajo. La producción mundial como promedio del período de 2000 a 2009, fue de 79’161,800 t, y el país ocupó el 9° lugar con una producción de 2’111,800 t, de las cuales exportó 3.4 %, con un valor promedio al año de US$ 28’475,100, mientras que en consumo el país tuvo el 8° lugar con el   2.7 % (2’039,200 t) del total mundial (75’585,500 t). El objetivo de este estudio fue analizar el mercado nacional del plátano durante el período de 1971 a 2010 mediante un modelo econométrico de ecuaciones simultáneas, el cual se estimó con mínimos cuadrados en dos etapas usando el procedimiento...
Palavras-chave: Mercado; Musa paradisiaca; Elasticidades; Market; Econometric model; Multiequiational; Elasticity; Modelo econométrico; Multiequiational; Economía; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/1681

Competitividad de las exportaciones Bolivianas hacia el mercado Chileno en el marco del acuerdo de complementación económica Boliviano Chileno
Provedor de dados: 32
Autores: Chuquimia Vargas, Humberto.
Con el propósito de evaluar la sensibilidad de las  exportaciones bolivianas hacia Chile ante cambios en el tipo de  cambio real bilateral (boliviano – chileno) y ante cambios en  la apertura comercial de Chile, se estimó un modelo de  ecuaciones simultáneas compuesto de tres ecuaciones:  exportaciones bolivianas hacia Chile, tipo de cambio real  boliviano chileno; y producto interno bruto chileno. Los  resultados muestran que las exportaciones de Bolivia a Chile  responden de manera inversa y elástica ante una apreciación del  boliviano frente al peso chileno, ceteris paribus, rezagado un  periodo posterior a la implementación del Acuerdo de  Complementación Económica con Chile. Y responde de manera  directa e inelástica ante cambios en la apertura...
Tipo: Tesis
Palavras-chave: Modelo de ecuaciones simultáneas; Elasticidad; Exportaciones; Tipo de cambio real; Apertura comercial; Maestría; Economía; Simultaneous equation model; Elasticity; Exports; Real exchange rate; Commercial opening.
Ano: 2007
URL: http://hdl.handle.net/10521/1472

Demanda y distribución de agua en el norte de Sinaloa.
Provedor de dados: 32
Autores: Torres Sombra, Jesús.
La disminución de los niveles de almacenamiento de agua en las presas de la región norte de Sinaloa y el incremento en su demanda para uso agrícola y residencial  hacen urgente establecer políticas que promuevan la distribución y uso eficiente. Para conocer los factores que explican el comportamiento de la demanda de agua en los sectores residencial, agrícola, pecuario, industrial y comercial del norte de Sinaloa, México, se estimó un modelo de ecuaciones simultáneas, compuesto de diez ecuaciones y tres identidades. Los resultados indican que la demanda de agua en los sectores residencial, agrícola, pecuario, industrial y comercial responde de manera inelástica a cambios en el precio con elasticidades de -0.088, -0.125, -0.066, -0.082 y -0.005,...
Palavras-chave: Agua; Elasticidad; Ecuaciones simultáneas; Sector agrícola y pecuario; Industrial y comercial; Residencial; Economía; Doctorado; Elasticity; Simultaneous equations; Agriculture and livestock; Industrial and commercial; Residential.
Ano: 2012
URL: http://hdl.handle.net/10521/1781

El mercado del huevo en México, 1965-2010.
Provedor de dados: 32
Autores: Cruz Jiménez, Susana.
El consumo de huevo para plato es alto a nivel mundial, debido a que fue de 15.23 Kg/persona en 2010; México es el país de mayor consumo, dado que registró 22.80 Kg/persona en el mismo año. El objetivo del presente trabajo fue analizar el mercado de huevo para plato y los factores que lo determinan. En la caracterización del mercado se utilizó un modelo econométrico de ecuaciones simultáneas alimentado con información secundaria para el periodo 1965-2010. Los resultados mostraron que la función de oferta responde de forma inelástica al precio (0.29) y al precio del alimento balanceado (-0.22) y elástica a la tecnología (1.02); la función de demanda responde de forma inelástica al precio al consumidor de huevo (-0.40), e inelástica, también, al ingreso...
Palavras-chave: Modelo econométrico; Elasticidades; Huevo para plato; Econometric model; Elasticity; Plate egg; Economía; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/1678

Efecto de las importaciones de carne de porcino en el mercado mexicano, 1961-2007
Provedor de dados: 32
Autores: Pérez Vera, Flor del Carmen.
La balanza comercial del sector porcino mexicano ha sido desfavorable a partir de 1988, incrementándose los volúmenes de importación en 515.77% en el periodo 1988-2007. El objetivo de este trabajo es representar el funcionamiento del mercado de carne de porcino, considerando el precio de importación del producto y de los principales granos utilizados en la dieta alimenticia porcina y cuantificar los efectos en el saldo de comercio exterior. Para ello se formuló un modelo econométrico de ecuaciones simultáneas, el cual se estimó con el Método de Mínimos Cuadrados en dos Etapas para el periodo 1961-2007. Los resultados indican que la elasticidad del precio de importación en el saldo de comercio exterior fue inelástico, lo que hizo  que las importaciones se...
Palavras-chave: Importaciones de carne porcina; Elasticidad; Modelo econométrico; Pork imports; Elasticity; Econometric model; Economía; Doctorado.
Ano: 2010
URL: http://hdl.handle.net/10521/75

Efecto de las importaciones de carne de porcino en el mercado mexicano, 1961-2007
Provedor de dados: 32
Autores: Pérez Vera, Flor del Carmen.
La balanza comercial del sector porcino mexicano ha sido desfavorable a partir de 1988, incrementándose los volúmenes de importación en 515.77% en el periodo 1988-2007. El objetivo de este trabajo es representar el funcionamiento del mercado de carne de porcino, considerando el precio de importación del producto y de los principales granos utilizados en la dieta alimenticia porcina y cuantificar los efectos en el saldo de comercio exterior. Para ello se formuló un modelo econométrico de ecuaciones simultáneas, el cual se estimó con el Método de Mínimos Cuadrados en dos Etapas para el periodo 1961-2007. Los resultados indican que la elasticidad del precio de importación en el saldo de comercio exterior fue inelástico, lo que hizo  que las importaciones se...
Palavras-chave: Importaciones de carne porcina; Elasticidad; Modelo econométrico; Pork imports; Elasticity; Econometric model; Economía; Doctorado.
Ano: 2010
URL: http://hdl.handle.net/10521/75

Incremento en el precio del maíz y efectos sobre la oferta de carne de res a nivel de granja.
Provedor de dados: 32
Autores: Hernández Zarco, Alfonso.
La actividad pecuaria es de gran importancia socioeconómica para el país; la ganadería, en específico la producción de carne, es la actividad más diseminada en el sector rural. Se estima que la superficie aprovechada por la ganadería es superior a 110 millones de hectáreas, aproximadamente 60% del terrritorio nacional (SAGARPA, 2000).  En el presente trabajo se estiman los efectos que se tiene sobre las cantidades ofrecidas de carne de res a nivel de granja ante un incremento en el precio del maíz, sorgo y pan. Los incrementos utilizados sobre los precios de los granos fueron del 5%, 10% y 15%, estos son ingredientes básicos en la dieta de bovinos. De igual manera, se realizo un cuestionario verbal con engordadores de Coatlinchan Texcoco edo. de México...
Palavras-chave: Ganadería; Superficie; Precio; Cantidad; Elasticidad; Incremento; Livestock; Area; Price; Quantity; Elasticity; Increase; Economía; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1858

Study of the manoeuvrability and security of a trawl gear
Provedor de dados: 5
Autores: Marichal, Dominique; Vincent, Benoit.
A complete method is presented for determining the static and dynamic behaviour of a fishing gear. The net, which is very flexible, is modelised by a set of rigid bars. The hydrodynamic forces, applied to each bar, are determined by combining and generalizing the Landweber and Morison hypothesis. A CFD method is used to calculate the forces on trawl doors. The fundamental principle of dynamics is completed with length equations expressing the elasticity of the bars. It leads to a set of second order non-linear differential equations, which is solved using a Runge-Kutta method. We will now present a few examples of the various applications of our works : the study of the trawl gear equilibrium in a uniform flow, an example of manoeuvrability (gyration of...
Tipo: Text
Palavras-chave: Runge Kutta; Elasticity; Simulation; Model; Trawl doors; Hydrodynamic; Fishing gear; Runge Kutta; Elasticite; Simulation; Modèle; Panneaux de chalut; Hydrodynamique; Engin de pêche.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-4612.pdf

Yielding and plastic behaviour of Boom clay
Provedor de dados: 5
Autores: Sultan, Nabil; Cui, Y. -j.; Delage, P.
An underground research laboratory (URL) has been excavated in a deposit of Boom clay at a depth of 223 m by the SCK-CEN Belgian organisation near the city of Mol. This URL is devoted to research into nuclear waste disposal. This paper presents the results of an investigation carried out in the triaxial apparatus on specimens that were trimmed from blocks extracted during excavation sequences in the URL. In order to characterise the mechanical behaviour of the natural Boom clay and to examine the effect of initial and induced anisotropy on its constitutive behaviour, two series of triaxial tests were carried out. Special attention was devoted to the yield behaviour and the effects of stress history. Experimental results showed a clear relation between the...
Tipo: Text
Palavras-chave: Anisotropy; Clays; Constitutive relations; Elasticity; Laboratory tests; Plasticity; Shear strength.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00013/12414/9530.pdf

Functional group based marine ecosystem assessment for the Bay of Biscay via elasticity analysis
Provedor de dados: 5
Autores: Hosack, Geoffrey R.; Trenkel, Verena.
The transitory and long-term elasticities of the Bay of Biscay ecosystem to densityindependent and density-dependent influences were estimated within a state space model that accounted for both process and observation uncertainties. A functional group based model for the Bay of Biscay fish ecosystem was fit to time series obtained from scientific survey and commercial catch and effort data. The observation model parameters correspond to the unknown catchabilities and observation error variances that vary across the commercial fisheries and fishery-independent scientific surveys. The process model used a Gompertz form of density dependence, which is commonly used for the analysis of multivariate ecological time series, with unknown time-varying fishing...
Tipo: Text
Palavras-chave: Compensatory dynamics; Cumulative impacts; Elasticity; Fox model; Gompertz model; Predictive cross-validation.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00510/62119/66311.pdf

Modelación de las propiedades mecánicas de películas de quitosana
Provedor de dados: 20
Autores: Casariego, A.; Díaz, R.; Sergrañes, Y.; Nieto, O. M.; Durán, C.; López, N; Rodríguez, M.; González, J.
Se elaboraron películas a partir de disoluciones a 3 % (m/v) de quitosana en ácido láctico a 1% (v/v), empleando glicerina, sorbitol o polietilenglicol como plastificante en concentraciones de 0,25 a 0,50 mL/g de quitosana. Se midieron el esfuerzo tensil, elongación, fuerza de ruptura, deformación y el espesor de las películas, con el objetivo de evaluar la influencia de la masa molar y concentración de plastificante sobre sus propiedades mecánicas. Se obtuvieron los modelos matemáticos que relacionan estos factores. Las películas con polietilenglicol, presentaron mayor esfuerzo tensil y fuerza de ruptura normalizada que las plastificadas con glicerina o sorbitol, pero resultaron menos elásticas y deformables, además, mientras mayor fue la concentración de...
Tipo: Journal Contribution
Palavras-chave: Mechanical properties; Chitosan; Biopolymers; Elasticity.
Ano: 2009
URL: http://hdl.handle.net/1834/5095

World Soybean Demand: An Elasticity Analysis and Long-Term Projections
Provedor de dados: 31
Autores: Masuda,   Tadayoshi; Goldsmith,   Peter D.
Soybeans are one of the most valuable crops in the world and are characterized by their multi-purpose uses: food, feed, fuel and other industrial usages such as paint, inks, and plastics.  Out of 183.9 million tons of world supply/demand of soybeans in 2001-03 year, about 10% of them were directly consumed as food (5.9%) or feed (3.8%) but 84.2% of them were crushed into soyoil and soymeal.  Soyoil is mainly processed to vegetable oil for human consumption and recently used as a biodiesel feedstock.  Soymeal is used not only as feed for livestock (especially for pork and poultry due to its low fiber level) and aquaculture, but also as a good source of protein for the human diet in a variety of forms in different cultures.  This paper analyzes the...
Tipo: Conference Paper or Presentation
Palavras-chave: Soybean demand; Elasticity; Error correction mechanism (ECM); Projection; Agribusiness; Crop Production/Industries; Demand and Price Analysis; Marketing; C22; C53; Q11.
Ano: 2009
URL: http://purl.umn.edu/49490

U.S. CIGARETTE SMOKING AND HEALTH WARNINGS: NEW EVIDENCE FROM POST WORLD WAR II DATA
Provedor de dados: 31
Autores: Blaine,   Thomas W.; Reed,   Michael R.
A framework was developed in order to specify a model for annual U.S. per capita consumption of cigarettes.  Three separate time related variables were utilized to measure the effects of health related information regarding smoking.  The empirical results from the post World War II data set reveal that while prices and income are important determinants of cigarette consumption, the estimates for both were in the inelastic range.  The age distribution of the adult population is also an important variable.  While the development of the filter tip has been successful in stimulating smoking, the low tar and nicotine innovation has not had a statistically significant effect.  Health information has repeatedly produced substantial short and long run effects....
Tipo: Journal Article
Palavras-chave: Cigarettes; Demand; Elasticity; Empirical estimation; Health Economics and Policy.
Ano: 1994
URL: http://purl.umn.edu/15181

Advertising and U.S. Nonalcoholic Beverage Demand
Provedor de dados: 31
Autores: Zheng,   Yuqing; Kaiser,   Harry M.
As a first effort at modeling nonalcoholic beverage demand in a systemwide framework that includes bottled water, this article examines the impact of advertising on the demand for nonalcoholic beverages in the United States. We employed an AIDS (almost ideal demand system) model of five jointly estimated equations that included advertising expenditures as explanatory variables to evaluate annual U.S. consumption of nonalcoholic beverages for 1974 through 2005. Results suggest that advertising increases demand for fluid milk, soft drinks, and coffee and tea, but not for juice or bottled water. Advertising spillover effects occur in over 50 percent of the cases considered, and such effects can be substantial, particularly for advertising of soft drinks, and...
Tipo: Journal Article
Palavras-chave: Advertising; Demand; Elasticity; Nonalcoholic beverages; Demand and Price Analysis.
Ano: 2008
URL: http://purl.umn.edu/45658

Trade Elasticities: The Significance of Trade Barriers, Multinationals and Market Structure
Provedor de dados: 31
Autores: Ahmadi-Esfahani,   Fredoun Z.; Anderson,   Glenn Michael.
The elasticity of price transmission measures the extent to which a change in world prices will be transmitted to an importing country, with an elasticity of less than one being attributed to trade barriers. Recent research highlights the role that multinational trading companies may play in impeding price transmission. Further, in markets characterised by monopolistic competition an estimate of the partial elasticity of demand may be of limited practical value if no account is taken of the reaction of competitors. In this paper the potential for market structure to affect price transmission and trade elasticities is demonstrated. The elasticity of price transmission has been central to a revised approach to estimation of trade elasticities and has been...
Tipo: Presentation
Palavras-chave: Elasticity; Price transmission; Trade barriers; Monopolistic competition; International Relations/Trade.
Ano: 1999
URL: http://purl.umn.edu/122328

The Effect of Ethanol Production on the U.S. National Corn Price
Provedor de dados: 31
Autores: Park,   Hwanil; Fortenbery,   T. Randall.
A system of equations representing corn supply, feed demand, export demand, food, alcohol and industrial (FAI) demand, and corn price is estimated by three-stage least squares. A price dependent reduced form equation is then formed to investigate the effect of ethanol production on the national average corn price. The elasticity of corn price with respect to ethanol production is then obtained. Results suggest that ethanol production has a positive impact on the national corn price and that the demand from FAI has a greater impact on the corn price than other demand categories. Thus, significant growth in ethanol production is important in explaining corn price determination.
Tipo: Conference Paper or Presentation
Palavras-chave: Corn price; Ethanol; Simultaneous equations; Three-state least squares; Elasticity.
Ano: 2007
URL: http://purl.umn.edu/37565

CHINA'S RURAL HOUSEHOLD DEMAND FOR FRUIT AND VEGETABLES
Provedor de dados: 31
Autores: Han,   Tong; Wahl,   Thomas I.
A two-stage budgeting LES-LA/AIDS system is sued to estimate rural household demand in China with special emphasis on changes in demand for fruit and vegetable commodities across different income groups.  The own-price elasticity for food was found to be more elastic than that for clothing, housing, durable goods, and other items.  Within the food group, price elasticities range from -1.042 to -0.019.  Grain, with an expenditure elasticity of almost unity, is an important staple food for the average rural household.  Vegetables are important nonstaple foods relative to fruits.  Lower value vegetables are the most price elastic in the vegetable group.  Fruits are more price elastic than vegetables, with grapes being the most price elastic.  Different income...
Tipo: Journal Article
Palavras-chave: AIDS model; Chinese rural households; Elasticity; Household demand; Household demand; LES model; Two-stage budgeting; Demand and Price Analysis.
Ano: 1998
URL: http://purl.umn.edu/15108

Enhancing the Profitability of Horticultural Products with Market Based Information
Provedor de dados: 31
Autores: Kyei,   Prince; Ejimakor,   Godfrey.
In addition to regional variations, demand for poinsettias was shown to depend on its price. Based on state-level data for 2005,demand in the Northeast and Midwest regions of the U.S. were found to be inelastic.  This suggests that the market for poinsettias in both regions could support higher prices.
Tipo: Conference Paper or Presentation
Palavras-chave: Demand structure; Elasticity; Poinsettias; Green industry; S1021; Agribusiness; Community/Rural/Urban Development; Demand and Price Analysis.
Ano: 2010
URL: http://purl.umn.edu/57077

DEMAND FOR HEALTHY FOOD IN THE UNITED STATES
Provedor de dados: 31
Autores: Feng,   Xudong; Chern,   Wen S.
This study investigates the demand for selected healthy food groups in the United States. The original linear approximate almost ideal demand system (LA/AIDS) is modified by the use of a Laspeyres index and a normalization in order to compute demand elasticities identically to the AIDS model. The results of this study suggest that poultry is the most price elastic while cereals are the least price elastic. Fresh fruits and fresh vegetables are more price elastic than processed fruits and processed vegetables. Increasing income would induce the increases in the consumption of fresh vegetables and fruits more than that of cereals and bakery products, while increasing health risk concerns would induce the decreases in the consumption of bakery products and...
Tipo: Conference Paper or Presentation
Palavras-chave: AIDS model; Elasticity; Healthy food; Household demand; United States; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2000
URL: http://purl.umn.edu/21857

PRICE EXPECTATIONS AND SUPPLY RESPONSE IN THE THOROUGHBRED YEARLING MARKET
Provedor de dados: 31
Autores: Neibergs,   J. Shannon; Thalheimer,   Richard.
Limited information is available concerning price determination in the thoroughbred yearling market. A recursive model incorporating price expectations and biological constraints is used to estimate supply and demand functions for thoroughbred horses. Empirical results characterize a market with inelastic supply and elastic demand that converges to equilibrium under static conditions. Purses were identified as the most influential variable impacting price. Comparative statics illustrate the effectiveness of purses as a policy instrument for the thoroughbred industry. Federal tax policy also was found to have a significant impact on the decisions to breed or invest in thoroughbred yearlings.
Tipo: Journal Article
Palavras-chave: Elasticity; Parimutual horse racing; Price determination; Price flexibility; Purses; Thoroughbred; Yearling; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/15061

U.S. Dairy Industry Supply Control: Managing the Cooperatives Working Together Program
Provedor de dados: 31
Autores: Siebert,   John W.; Lyford,   Conrad P.
This teaching note is intended as a guide for classroom use of the case, “U.S. Dairy Industry Supply Control: Managing the Cooperatives Working Together Program.” Some of the teaching objectives of this case are to: (1) evaluate the benefits from an industry supply control effort; (2) understand the problems and causes of oversupply in a commodity industry; and (3) learn about price equilibrium. Teachers using this note can present a dynamic analysis using the cobweb theorem. Also, teachers can compare and contrast the welfare impact of funding supply control versus the welfare impact of funding commodity promotion.
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries; Teaching/Communication/Extension/Profession; CWT; Dairy; Elasticity; Milk; Supply Control.
Ano: 2009
URL: http://purl.umn.edu/51711

The demand for alcohol: a meta-analysis of elasticities
Provedor de dados: 31
Autores: Gallet,   Craig A.
Numerous studies have estimated elasticities of alcohol demand using different procedures. Because of widespread differences in demand estimates, however, it is difficult to synthesise the literature into coherent meaning. This study improves our understanding of alcohol demand by reporting results from a meta-analysis of 132 studies. Specifically, regressing estimated price, income and advertising elasticities of alcohol on variables accounting for study characteristics, we find alcohol elasticities to be particularly sensitive to demand specification, data issues and various estimation methods. Furthermore, compared to other alcoholic beverages, beer elasticities tend to be more inelastic.
Tipo: Journal Article
Palavras-chave: Alcohol demand; Elasticity; Meta-analysis; Demand and Price Analysis.
Ano: 2007
URL: http://purl.umn.edu/118323

INTERNATIONAL EVIDENCE ON FOOD CONSUMPTION PATTERNS
Provedor de dados: 31
Autores: Seale,   James L., Jr.; Regmi,   Anita; Bernstein,   Jason.
The analysis presented here suggests that low-, middle-, and high-income countries all respond differently to changes in income and food prices and, furthermore that low-income countries are more responsive than high-income countries to such changes. These conclusions are based on a two-stage, cross-country demand system fit to the 1996 International Comparison Project (ICP) data for nine broad categories and eight food sub-categories of goods across 114 countries. The broad consumption groups include: food, beverage, and tobacco; clothing and footwear; education; gross rent, fuel, and power; house furnishings and operations; medical care; recreation; transport and communications; and other items. The food sub-groups include bread and cereals, meat, fish,...
Tipo: Report
Palavras-chave: Consumption; Cross-country demand; Complete demand system; Food demand; Elasticity; Heteroskedasticity; Maximum likelihood; Food Consumption/Nutrition/Food Safety.
Ano: 2003
URL: http://purl.umn.edu/33580

Price sensitivity within and across retail formats
Provedor de dados: 31
Autores: Widenhorn,   Andreas; Salhofer,   Klaus.
Paper removed at the request of the first author, October 2013.
Tipo: Presentation
Palavras-chave: Demand; Elasticity; Discount; Retail formats; International Relations/Trade; D12.
Ano: 2012
URL: http://purl.umn.edu/124108

Interfuel Substitution: A Meta-Analysis
Provedor de dados: 31
Autores: Stern,   David I.
Interfuel substitutability has been of longstanding interest to energy economists and policy makers. However, there has been no quantitative meta-analysis of this literature.   This research report fills this gap by analysing a broad sample of studies of interfuel substitution in the industrial sector, manufacturing industry or sub-industries, and macro-economy of a variety of developed and developing economies. The primary study sample size has been included in the meta-regression to control for publication bias.   At the industrial level, results for the shadow elasticities of substitution between coal, oil, gas, and electricity for forty-six primary studies show that, except for gas-electricity and coal-electricity, there are easy substitution...
Tipo: Report
Palavras-chave: Meta-analysis; Energy; Substitution; Elasticity; Interfuel; Environmental Economics and Policy; Resource /Energy Economics and Policy; D24; Q40.
Ano: 2009
URL: http://purl.umn.edu/94882

Derived Demand for Cattle Feeding Inputs
Provedor de dados: 31
Autores: Mathews,   Kenneth H., Jr.; Arnade,   Carlos Anthony; Jones,   Keithly G.
Derived demand relationships among four weight categories of feeder cattle entering Texas feedlots and their feed consumed are examined using a generalized McFadden dual cost function. Results demonstrate systematic differences in demand relationships among different weight categories. Positive cross-price elasticities among the three heaviest weight categories are consistent with input substitution among weight categories and consistent with objective functions associated with optimal placement weight. Anomalies in the form of negative cross-price elasticities between weight categories provide evidence for an alternative objective function associated with longer term feeding of light-weight feeder cattle. Results also demonstrate seasonality differences...
Tipo: Journal Article
Palavras-chave: Cattle feeding; Derived demand; Elasticity; Feeder cattle; Generalized McFadden cost function; Agribusiness; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/90552

Analysing Wine Demand With Artificial Neural Networks
Provedor de dados: 31
Autores: 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

Building aggregate timber supply models from individual harvest choice
Provedor de dados: 31
Autores: Polyakov,   Maksym; Wear,   David N.; Huggett,   Robert.
Timber supply has traditionally been modelled using aggregate data. In this paper, we build aggregate supply models for four roundwood products for the US state of North Carolina from a stand-level harvest choice model applied to detailed forest inventory. The simulated elasticities of pulpwood supply are much lower than reported by previous studies. Cross price elasticities indicate a dominant influence of sawtimber markets on pulpwood supply. This approach allows predicting the supply consequences of exogenous factors and supports regular updating of supply models.
Tipo: Conference Paper or Presentation
Palavras-chave: Timber supply; Harvest choice; Conditional logit; Elasticity; Expectations; Simulation.
Ano: 2009
URL: http://purl.umn.edu/48168

ESTIMATING THE IMPORTANCE OF SHELF SPACE CONFIGURATION ON RETAILER'S PROFIT
Provedor de dados: 31
Autores: Roucan-Kane,   Maud; Martens,   Bobby J.; Preckel,   Paul V.
Retail shelf space allocation remains a central issue in grocery retailing. A literature review produced many studies on retail shelf space allocation, but none which evaluated shelf space allocation using three major factors at once: space, vertical height, and price. In this study, shelf space allocation was modeled from the perspective of a retailer maximizing profit using space, vertical height, and price. Using benchmarking, the results show how shelf configuration affects consumer demand and retailer profit. Parameters for the model were based on experience-based intuition. Although the initial results are not valuable at this point, the method and results create a rationale and motivation to gather primary data. Once primary data is collected, this...
Tipo: Working or Discussion Paper
Palavras-chave: Shelf space allocation; Retail; Optimization; Grocery; Elasticity; GAMS; Ketchup; Marketing; C61; L81.
Ano: 2007
URL: http://purl.umn.edu/7330

The Effect of Technological Change on Demand and Supply of Hired Farm Workers in the United States
Provedor de dados: 31
Autores: Mishra,   Ashok K.; Rezitis,   Anthony N.
This paper investigates the effect of technological change on the demand for, and supply of, hired farm workers in the United States for the period 1950 to 1992. Particular attention is given to the proxy for technological change. We have used total expenditures, both by public and private sectors, for research and development in the field of agriculture. We find that technology has a negative impact on the hired labor demand after the second and third year of initial investment. Our results show that technology is labor saving. The demand and supply elasticities were found to differ from other studies. We also derive elasticities of adjustment and draw some policy conclusions. The paper also presents a dynamic-in-period simulation of the estimated model.
Tipo: Journal Article
Palavras-chave: Elasticity; Hired workers; Technological change; Total expenditures; Agribusiness; Labor and Human Capital.
Ano: 1998
URL: http://purl.umn.edu/90432

ECONOMIC AND ENVIRONMENTAL IMPACTS OF THE POST-1992 CAP REFORMS ON ALENTEJO ECONOMY OF PORTUGAL
Provedor de dados: 31
Autores: Serrao,   Amilcar.
This research develops 'Johansen-type' models of agriculture and constructs  Input-Output models for assessing the impact of the post-1992 CAP reforms on incomes, employment and the environment in four Alentejo study areas of Portugal. The effects of agricultural output changes on businesses supplying inputs and processing farm output  were also assessed by those empirical models.
Tipo: Conference Paper or Presentation
Palavras-chave: Common    Agricultural    Policy; Johansen   Model; Input-Output  Model; Elasticity; Multiplier and   Environmental Indicators; Agricultural and Food Policy; Demand and Price Analysis; Research Methods/ Statistical Methods.
Ano: 1998
URL: http://purl.umn.edu/21020

Italian Consumption of Wild and Farmed Fish: Demand and Elasticity Estimation
Provedor de dados: 31
Autores: Gerolimetto,   M.; Mauracher,   Christine; Procidano,   I.
In this paper, we present an analysis of farmed and wild fish in Italy using microdot.  Instead of estimating a traditional parametric model such as AIDS, we employ Artificial Neural Networks (ANNs) and evaluate elasticities using a method specific of the non-parametric framework.  As input variables, we consider not only the traditional economic factors but also some socio-demographic ones.
Tipo: Conference Paper or Presentation
Palavras-chave: Aquaculture; Artificial Neural Networks; Demand curve; Elasticity; Fish consumption; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries; C14; C21; Q11; Q13.
Ano: 2005
URL: http://purl.umn.edu/56076

How does it work for Hungarian food consumers? A medium-term analysis
Provedor de dados: 31
Autores: Szigeti,   Judith; Podruzsik,   Szilard.
The accession of Hungary to the European Union (EU) in 2004 was expected to lead to price convergence to the EU levels. The influence of national and EU policies on Hungarian producers and consumers is important as they were facing a new situation. Consumers’ welfare depends on the constantly altering world- and common market, and political actions. The purpose of this study is to analyse welfare changes and distributional impacts on Hungarian food consumers. The paper focuses on Laspeyres index, compensating variation and elasticities of demand.
Tipo: Journal Article
Palavras-chave: Food consumption; Consumer welfare; Compensating variation; Price change; Elasticity; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Research Methods/ Statistical Methods.
Ano: 2011
URL: http://purl.umn.edu/102400

Changes in Import Demand Elasticity for Red Meat and Livestock: Measuring the Impacts of Animal Disease and Trade Policy
Provedor de dados: 31
Autores: Susanto,   Dwi; Rosson,   C. Parr, III; Henneberry,   Shida Rastegari.
This paper estimates import demand functions for red meat and live cattle and investigates the impact of BSE and the trade ban on Canadian Cattle and beef on U.S. import demand elasticity using an error correction model (ECM). The results show that beef, pork, and live cattle were price inelastic prior to the BSE case. There has been statistical evidence of the effect of BSE and the trade bans on import demand elasticity in favor of more elastic demand. The effect is, however, quite small in absolute values for pork and beef imports and is relatively more elastic for live cattle. But the import demand elasticities of the three products are still inelastic. The use of ECM model provides efficient and robust estimates of the parameters.
Tipo: Conference Paper or Presentation
Palavras-chave: BSE; Elasticity; Import demand; Red meat and live cattle; Trade bans; International Relations/Trade; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/6337

Socially Optimal Taxation of Alcohol: The Case of Czech Beer
Provedor de dados: 31
Autores: 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

A Review of Agricultural Policy Evolution, Agricultural Data Sources, and Food Supply and Demand Studies in Egypt
Provedor de dados: 31
Autores: Soliman,   Ibrahim; Fabiosa,   Jacinto F.; Bassiony,   Halah.
Over the years the control of the Government of Egypt on the agricultural sector has increasingly weakened with the progressive elimination of the input subsidy, area control, price control, procurement control, and the constraints in private sector participation in processing and trade. The only remaining major government involvement is the food subsidy in some wheat products, the “baladi” bread subsidy in particular.  Policy analysis studies in Egypt have been made possible because the Government of Egypt collects and publishes significant amounts of agricultural data on a regular basis. Two of the most widely used data sets are the Household Budget Survey conducted and published by the Central Agency for Public Mobilization and Statistics, and the Food...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural data; Agricultural policy; Egypt; Elasticity; Supply and demand.; Agricultural and Food Policy; Demand and Price Analysis.
Ano: 2010
URL: http://purl.umn.edu/59510

A Stochastic Production Investigation of Fish Farms in Ghana
Provedor de dados: 31
Autores: Onumah,   Edward E.; Acquah,   H. de-Graft.
This paper considers the stochastic production frontier approach to analyse the technical efficiency and its determinants of fish farms in Ghana using a cross-section data of 150 farms. It considers the explicit effects of family and hired labour on production by setting the log-value of the zero-observation of these two sources of labour to zero with dummy variables. Results demonstrate that expected elasticities of mean output with respect to all input variables are positive and significant. Findings also show that family and hired labour used for fish farming in Ghana may be equally productive. Fish farms in Ghana are revealed to be characterised by technology with increasing return to scale. The combined effects of operational and farm specific factors...
Tipo: Journal Article
Palavras-chave: Technical efficiency; Stochastic frontier; Elasticity; Return to scale; Farm Management; Productivity Analysis; GA; IN.
Ano: 2011
URL: http://purl.umn.edu/109738

Substitutability of Fishmeal in Diets for Salmon and Trout: A Meta-Analysis
Provedor de dados: 31
Autores: Drakeford,   Ben; Pascoe,   Sean.
Intensive aquaculture, especially the production of carnivorous species, requires artificial feeding.  Fishmeal and oil are preferred to vegetable proteins, since marine proteins provide the essential nutrients required by farmed fish.  Therefore, given the stagnant production of reduction species and the rapid increase in aquaculture production, fishmeal availability would pose a biological constraint on aquaculture contribution to world fish supplies in the future, unless alternative feed sources can be incorporated in diets.  In this paper, the technical substitutability between fish and vegetable based feeds are assessed through the estimation of Morishima elasticities of substitution.  These are derived from a meta-analysis production function.
Tipo: Conference Paper or Presentation
Palavras-chave: Fishmeal; Meta-analysis; Salmon; Trout; Elasticity; Livestock Production/Industries; Q2.
Ano: 2005
URL: http://purl.umn.edu/56074

The Value of Water Rights in Agricultural Properties in the Phoenix Active Management Area
Provedor de dados: 31
Autores: Yoo,   James; Perrings,   Charles; Kinzig,   Ann; Abbott,   Joshua K.; Simonit,   Silvio; Connors,   John P.; Maliszewski,   Paul J.
This paper estimates the value of water rights in the Phoenix Active Management Area (AMA), Arizona. Within AMAs groundwater rights cannot be transferred separately from the agricultural land to which they apply. As a result there is no separate market for ground water rights. The lack of a market creates two problems: there is no direct signal of the scarcity of water and no mechanism for reallocating water from low-to-high value uses. Water can only be reallocated by changing land use. With the growth of metropolitan Phoenix the value of water committed to residential, commercial or industrial use has increased rapidly relative to the value of water committed to agriculture. This has led to the reallocation of land from agriculture to urban uses. To...
Tipo: Presentation
Palavras-chave: Water rights; Hedonic price method; Urbanization; Farmland prices; Elasticity; Marginal willingness to pay; Environmental Economics and Policy; Land Economics/Use.
Ano: 2012
URL: http://purl.umn.edu/124095

Demand for inputs in silkworm production: the case of Turkey
Provedor de dados: 96
Autores: Özer,Osman Orkan; Top,Berrin Taşkaya.
ABSTRACT The objective of this study was to calculate the price, cross, and Morishima Technical Substitution elasticities for the costs of manpower, supply of mulberry leaves, transportation, heating, and material, all of which play pivotal roles for producers in sericulture. A survey was conducted by face-to-face interviews with 207 farmers within the scope of the study. At the analysis phase of the study, the share equity translog cost model was used. The response of the producers to the production input prices were calculated as inelastic. The strictest demand for an input belongs to mulberry leaves (-0.051) and the highest elasticity for transportation costs (-0.314). Sericulture dependents on workforce and mulberry leaves and this activity in Turkey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasticity; Sericulture; Silkworm subsidies; Translogcost model.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017001200917

Demand for fisheries products in Brazil
Provedor de dados: 63
Autores: Sonoda,Daniel Yokoyama; Campos,Silvia Kanadani; Cyrino,José Eurico Possebon; Shirota,Ricardo.
Fish consumption per capita in Brazil is relatively modest when compared to other animal proteins. This study analyses the influence of protein prices, other food prices and population income on the fish demand in Brazil. First, the problem of fish supply in Brazil is characterized. It is followed by reviews of the relevant economic theory and methods of Almost Ideal Demand System - AIDS and their elasticity calculations. A descriptive analysis of fish demand in Brazil using the microdata called "Pesquisa de Orçamento Familiar" (Familiar Budget Research) - POF 2002-2003 is presented. Finally, demand functions and their elasticities are calculated for two different cases: one considering five groups of animal proteins (Chicken; Milk and Eggs; Fish;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AIDS; Fish; Supply; Elasticity; Market.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000500005

Modelling Rupture Force based on Physical Properties – a Case Study for Roma Tomato (Solanum lycopersicum) Fruits
Provedor de dados: 111
Autores: Lak, Mohammadbagher; Minaei, Saeid; Soufizadeh, Saeid; Banakar, Ahmad.
Biophysical properties of agricultural materials are important in designing of processing machines. In this study, some physical properties of tomato (Solanum lycopersicum) fruits were determined and their mutual relationships were studied. Dimensions (major diameter, minor diameter, and length), mass, volume, fresh and dry matter weight, as well as rupture point under uniaxial loading were measured. Other properties; including Poisson's ratio, modulus of elasticity, energy for rupture, density, arithmetic mean diameter, geometric mean diameter, diameter of equivalent volume sphere, and sphericity were calculated accordingly. Statistical analysis of the data indicated significant correlations between the rupture force and fresh weight, volume, dry weight,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biosystems Engineering; Food Engineering correlation; Elasticity; Geometry; Mechanical properties; Rupture.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4880

Demography and structures population of Actinostemon concolor (Spreng.) Müll. Arg. (Euphorbiaceae) in flooded areas in Southern Brazil
Provedor de dados: 52
Autores: Bianchini,Edmilson; Araújo,Carla Gomes de; Green,Márcia; Pimenta,José Antonio.
The aim of this work was to analyze the size and spatial structures and demography of Actinostemon concolor (Spreng.) Müll. Arg. (Euphorbiaceae) in the flooded areas of Mata dos Godoy State Park. Fifty plots of 100 m² were established and three surveys were conducted. All the individuals were measured, mapped and divided into categories as seedlings, juveniles and adults. The coefficient of skewness, L-function of Ripley, and the matrix population models were used in the study. The population showed positive coefficient of skewness and the individuals were distributed in groups. The population growth rates (λ) were equal or lower than 1.0 and the adult survival and recruitment of juvenile to adult were the vital rates that most affected the values of λ....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasticity; Matrix models; Spatial distribution; Structure size; Tropical tree.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000100009