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La demanda de carnes y pescados en Túnez: un enfoque dinámico

Author

Listed:
  • Gil, José M.ª
  • Dhehibi, B.
  • Angulo, Ana Maria

Abstract

El objetivo de este trabajo consiste en analizar la demanda de carnes y pescado en Túnez utilizando sistemas econométricos multiecuacionales en base a datos de series temporales para el período 1973-1997. Se ha prestado especial atención a la especificación del modelo y al cumplimiento de las restricciones teóricas. Desde el primer punto de vista, se ha optado por un enfoque dinámico general que permite seleccionar la forma funcional que mejor se ajusta a los datos. Los resultados del análisis indican que un sistema en forma de modelo de corrección del error es el más adecuado para analizar la demanda de carnes en Túnez. Desde el segundo punto de vista, el modelo estimado cumple las restricciones de homogeneidad, simetría y negatividad con lo que es perfectamente compatible con la teoría de la demanda. Excepto el pollo, que es considerado como un bien de primera necesidad, las carnes de cordero y los pescados presentan elasticidades unitarias, mientras que la carne de vacuno se comporta como un bien de lujo. Con respecto a las elasticidades precio, la demanda de todas las categorías de carnes y pescados es inelástica......The aim of this paper is to analyse the demand for meat and fish in Tunisia using multiequational econometric systems with time series data for the period 1973-1997. Special attention has been paid to two issues: model specification and theoretical restrictions testing. In relation to the first issue, a fairly general dynamic framework has been used in order to specify the dynamic version of the AIDS model which fits better the data. Results from specification tests indicate that the system in error correction form adequately describes the behaviour of Tunisian consumers. In relation to the second issue, the estimated model satisfies the homogeneity, symmetry and negativity restrictions making it compatible with demand theory. Except for chicken, that can be considered as a necessity, lamb and fish expenditure elasticities are close to unity while veal is a luxury good in relation to meat and fish expenditure. Finally, fish and meat are price inelastic.

Suggested Citation

  • Gil, José M.ª & Dhehibi, B. & Angulo, Ana Maria, 2001. "La demanda de carnes y pescados en Túnez: un enfoque dinámico," Revista Espanola de Estudios Agrosociales y Pesqueros, Ministerio de Medio Ambiente, Rural y Marino (formerly Ministry of Agriculture), issue 190, pages 1-22.
  • Handle: RePEc:ags:spreea:165059
    DOI: 10.22004/ag.econ.165059
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    Cited by:

    1. Dhraief, Mohamed Zied & Oueslati, Meriem & Dhehibi, Boubaker, 2012. "Meat And Fish Demand In Tunisia: Economic And Socio-Demographic Factors Effects," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 126710, International Association of Agricultural Economists.
    2. Dhraief, Mohamed Zied & Oueslati, Meriem & Dhehibi, Boubaker, 2013. "Income, Education and Age Effects on Meat and Fish Demand in Tunisia," International Journal of Food and Agricultural Economics (IJFAEC), Alanya Alaaddin Keykubat University, Department of Economics and Finance, vol. 1(2), pages 1-12.
    3. Dhraief, M.Z. & Fraj, C & Boubaker, D., 2013. "Effets des caractéristiques démographiques et économiques des consommateurs sur la perception de la qualité des viandes en Tunisie," 2013 Fourth International Conference, September 22-25, 2013, Hammamet, Tunisia 160441, African Association of Agricultural Economists (AAAE).

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