Consulta: creatorFacets:"Ben Kaabia,   Monia"
Registros recuperados: 10
Data/hora: 16/06/2024 19:12:53

MODELLING IMPORT DEMAND SYSTEMS WITH NONSTATIONARY DATA: AN APPLICATION TO THE FRENCH IMPORTS OF VIRGIN OLIVE OIL
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria.
This paper aims to provide a flexible methodological framework to estimate import demand models, which explicitly considers the stochastic properties of data and the endogenous/exogenous nature of some variables. The French imports of virgin olive oil have been used as a case study with Spain, Italy and the Rest of the World as main suppliers. The methodological framework starts by the specification a reduced-form VAR. Appropriated exogeneity tests show the exogeneity of Total Real Imports, indicating the appropriateness of estimating a conditional model. Two cointegration relationships have been found. Several restrictions have been tested in order to identify them as AIDS equations. From structural coefficients of the restricted cointegrated vectors...
Tipo: Conference Paper or Presentation
Palavras-chave: Virgin olive oil; France; Demand for imports; Cointegration; And exogeneity.; Demand and Price Analysis; International Relations/Trade; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/6696

Price Transmission Asymmetries in the Spanish Lamb Sector
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria; Boshnjaku,   L.
The analysis of asymmetries in the price transmission mechanism at different levels of the marketing chain provides some interesting information about the degree of competition in vertical related markets. The objective of this paper is to investigate the non-linear adjustments of prices along the lamb sector in Spain. The methodology used is based on the multivariate approach to specify and estimate a Threshold Autoregressive Model. Price relationships at farm, wholesale and retail levels are considered. Results indicate that in the long-run price transmission is perfect and any supply or demand shocks are fully transmitted to all prices in the system. In the shortrun, analyses suggest that the high degree of horizontal concentration among retailers allow...
Tipo: Conference Paper or Presentation
Palavras-chave: Price transmission; Asymmetries; TAR models; Lamb; Spain; Demand and Price Analysis.
Ano: 2002
URL: http://purl.umn.edu/24908

The effect of long-run identification on impulse-response functions: An application to the relationship between macroeconomics and agriculture in Tunisia
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria; Chebbi,   Houssem Eddine.
The objective of this paper is to analyse some of the most relevant relationships among macroeconomic variables and the agricultural sector in Tunisia. Three alternative models are specified and estimated: a VAR in levels, an unrestricted Vector Error Correction Model (VECM), and a Restricted VECM in which long-run relationships among the relevant variables are identified. In all models short-run dynamics are analysed through the use of Generalised Impulse Response Functions. Results indicate that alternative model specifications generate different short-run dynamics. Long-run identification seems to be a necessary condition for obtaining consistent economic results.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 2002
URL: http://purl.umn.edu/26459

Transmision de precios en los mercados regionales de ovino en Espana
Provedor de dados: 31
Autores: Boshnjaku,   L.; Ben Kaabia,   Monia; Gil,   Jose Maria.
Resumen El análisis de las relaciones de precios existentes en un determinado sector permiten, por un lado, ofrecer una idea aproximada del funcionamiento de los mercados y, por otro, anticipar respuestas ante shocks inesperados en mercados relacionados. El objetivo de este estudio se ha centrado en el análisis de la transmisión de precios entre los principales mercados de ovino en España. Para llevar a cabo este estudio se ha adoptado un enfoque econométrico que ha tenido en cuenta las propiedades estocásticas de las series, la posible naturaleza multivariante de los procesos de transmisión, y la distinción entre el comportamiento a corto y largo plazo. Los resultados indican que los mercados de ovino se encuentran bastante interrelacionados pudiéndose...
Tipo: Journal Article
Palavras-chave: Price transmission; Cointegration; Lead-lag relationships; Spanish lamb sector; Demand and Price Analysis; Q12; Q18.
Ano: 2003
URL: http://purl.umn.edu/28747

MODELING THE IMPACT OF FOOD SAFETY INFORMATION ON MEAT DEMAND IN SPAIN
Provedor de dados: 31
Autores: Radwan,   Amr; Gil,   Jose Maria; Ben Kaabia,   Monia; Serra,   Teresa.
This paper analyses the impact of food safety information about the 'mad-cow' crisis on the demand for different types of fresh meat and fish in Spain. The theoretical model explicitly incorporates food safety information in the consumers' utility function, from which demand equations are obtained. Two alternative functional forms have been considered, the standard AIDS and the Generalized Almost ideal Demand System (GAIDS) in order to overcome the problem of incorporating demand shifters in the traditional AIDS model. The food safety information has been incorporated into the demand function through a weighted information index built on the basis of the published news related to the mad-cow disease in the most popular Spanish newspaper. The comparison of...
Tipo: Conference Paper or Presentation
Palavras-chave: Meat consumption; Food safety information; BSE; Demand systems; GAIDS; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/6672

FOOD SAFETY INFORMATION AND MEAT DEMAND IN SPAIN
Provedor de dados: 31
Autores: Radwan,   Amr; Gil,   Jose Maria; Ben Kaabia,   Monia; Serra,   Teresa.
This paper analyses the impact of food safety information about the “mad-cow” crisis on the demand for different types of fresh meat and fish in Spain. The theoretical model explicitly incorporates food safety information in the consumers’ utility function, from which demand equations are obtained. Two alternative functional forms have been considered, the standard AIDS and the Generalized Almost ideal Demand System (GAIDS) in order to overcome the problem of incorporating demand shifters in the traditional AIDS model. The food safety information has been incorporated into the demand function through a weighted information index built on the basis of the published news related to the mad-cow disease in the most popular Spanish newspaper. The comparison of...
Tipo: Conference Paper or Presentation
Palavras-chave: Meat consumption; Food safety information; BSE; Demand systems; GAIDS; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Q11; C32; D12.
Ano: 2009
URL: http://purl.umn.edu/51540

Asymetric Price Transmission in the Spanish Lamb Sector
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria.
This paper aims to investigate the non-linear adjustments of prices between farm and retail prices in the lamb sector in Spain. The methodology used is based on the multivariate approach to specify and estimate a three-regime Threshold Autoregressive Model. Results indicate that in the long-run price transmission is perfect and any supply or demand shocks are fully transmitted along the marketing chain. In the short-run, price adjustments between the farm and the retail levels are asymmetric and are representative of a demand-pull transmission mechanism. On the other hand, retailers benefit from any shock, whether positive or negative, that affects supply or demand conditions.
Tipo: Conference Paper or Presentation
Palavras-chave: Asymmetries; Lamb; Spain; Price transmission; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/24631

Asimetrías en la transmisión de precios en el sector del tomate en España
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil Roig,   Jose Maria.
RESUMEN: El objetivo de este trabajo consiste en analizar el proceso de transmisión de precios a lo largo de la cadena comercial en el sector del tomate en España. Para ello se han considerado el precio percibido por el productor y el pagado por el consumidor. El enfoque metodológico adoptado se basa en la estimación de un Vector de Corrección del Error con umbrales. Los resultados indican que, a largo plazo, los dos precios son homogéneos. Sin embargo, en el corto plazo las reacciones de precios, tanto en velocidad como en magnitud, son asimétricas. Es más, los resultados indican que los detallistas se benefician (en el sentido de que son capaces de aumentar el margen comercial) de cualquier shock, ya sea positivo o negativo, que afecte tanto a las...
Tipo: Journal Article
Palavras-chave: Asimetrías; Cointegración por umbrales; Precios; Tomate; Threshold cointegration; Prices; Tomato; Asymmetries; Demand and Price Analysis; Research Methods/ Statistical Methods; C32; Q13.
Ano: 2008
URL: http://purl.umn.edu/37189

The EU demand for imports of virgin olive oil
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria.
This paper has analysed the import demand for virgin olive oil in the EU and more precisely in the Italian market, as it concentrates more than 80% of EU imports, aiming to determine the relative position of Mediterranean EU and non-EU countries exports and their degree of substitutability or complementarity. The methodology used is based on the specification of a Threshold Almost Ideal Demand System in which special attention has been paid to the stochastic properties of the series involved. In an empirical context, the paper has aimed to provide a set of import demand elasticities that can be useful in trade models. Results point to Spain as the leader in the Italian virgin olive oil market. It is expected that this position will be maintained in the...
Tipo: Conference Paper or Presentation
Palavras-chave: Olive oil; Italy; Elasticities; Imports; TAIDS; Demand and Price Analysis; International Relations/Trade.
Ano: 2007
URL: http://purl.umn.edu/9390

Macroeconomics and Agriculture in Tunisia
Provedor de dados: 31
Autores: Ben Kaabia,   Monia; Gil,   Jose Maria; Chebbi,   Houssem Eddine.
This paper aims to analyse the impact of changes in the monetary policy and the exchange rate on agricultural supply, prices and exports. The methodology used is based on the multivariate cointegration approach. Ten variables are considered: interest and exchange rates, money supply, inflation, agricultural output and input prices, agricultural supply and exports, income and the rate of commercial openness. Sample period covers annual data from 1967 to 2002. Due to the short-sample period, two subsystems are considered. First, long-run relationships are identified in each subsystem. Second, both subsystems are merged in order to calculate the short-run dynamics. Results indicate that changes in macroeconomic variables have an effect on the agricultural...
Tipo: Conference Paper or Presentation
Palavras-chave: Macroeconomic policy; Agro-food sector; Tunisia; Impulse-response functions; Political Economy; C32; N57; O31.
Ano: 2005
URL: http://purl.umn.edu/24597