Analyse de la Reponse de l'offre des Pommes en Tunisie : Une Approche Econometrique

In Tunisia, the apples occupy a significant place on the sector of perennial crops. This cropcovered expanded areas during the eighties following an extensive use of efficient waterequipments. However, significant seasonal and annual variation of fruit supplies in thedomestic market were frequently encountered affecting prices at both wholesale andconsumption levels. To study the supply response of apples we carried out an econometricestimate of the model of supply response. Modelling was carried out in two stages:determination of the variation of the surfaces, on the basis of equation of news plantations andthe equation of removals, and the variation of yields. The methodological approach that wefollowed takes account of the characteristics and specificities related to the perennial crops.Weak response of the supply to variations in the expected prices is obtained. Price elasticityobtained is about 0.13.