DEMANDE DU RIZ IMPORTE, DEMANDE DU RIZ PRODUIT LOCALEMENT AU TOGO: UNE ESTIMATION À PARTIR DU MODÈLE ALMOST IDEAL DEMAND SYSTEM (AIDS)

Kombate Tchabletienne, Egnonto M. Koffi-Tessio and Aliou Diagne

No 97329, 2010 AAAE Third Conference/AEASA 48th Conference, September 19-23, 2010, Cape Town, South Africa from African Association of Agricultural Economists (AAAE)

Abstract: L’approximation linéaire du modèle Almost Ideal Demand System (LA/AIDS) est utilisée pour estimer la demande du riz (riz local et riz importé) au Togo de 1986 à 2006. Un modèle à correction d’erreur (MCE) a été développé pour tenir compte des relations de court terme entre les variables. Les paramètres de court et de long terme ont été estimés par les MCO. Dans cette étude, le riz local et le riz importé sont supposés être faiblement séparables des autres biens. Cette hypothèse excluant les relations avérées entre le riz importé et le riz local d’une part et entre ces produits, et les autres produits alimentaires d’autre part ; a conduit à estimer la demande du riz au Togo au deuxième stade d’un processus de maximisation de l’utilité. Les paramètres de court terme et de long terme obtenu, ont donc servi à calculer les élasticités conditionnelles marshalliennes de la demande du riz au Togo. The linear approximation of the model Almost Ideal Demand System (LA/AIDS) is used to estimate rice demand (local rice and imported rice) in the Togo between 1986 and 2006. An error correction model (ECM) was developed to capture the short terms relationships between the variables. The parameters of short and long run were estimated by the MCO. In this study, local rice and imported rice are supposed to be weakly separable from other goods. This assumption, excluding the relations proven between imported rice and local rice on the one hand and between these products, and the other food products on the other hand; resulted in estimating the demand of rice in Togo at the second stage of utility maximization process. The short and long run parameters obtained, were then used to calculate conditional Marshallian demand elasticises of rice in Togo.

Keywords: Consumer/Household; Economics (search for similar items in EconPapers)
Pages: 17
Date: 2010-09
New Economics Papers: this item is included in nep-afr
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Persistent link: https://EconPapers.repec.org/RePEc:ags:aaae10:97329

DOI: 10.22004/ag.econ.97329

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