Demand Functions Estimation of Syrian Potatoes in the Jordanian and United Arab Emirates Markets

Mohammed Maary(1)* Maher Yousef(1) Mustafa Haj Hmaidi(1) and Bashar Nenneh(1)

(1). Department of economic, Faculty of Agriculture, Aleppo University, Aleppo, Syria.

(*Corresponding author: Eng. Mohammed Maary. E-Mail:

Received: 18/09/2018                                Accepted: 17/10/2018


The aim of the study was to identify the possibilities of developing Syrian potato exports and maintain market share in foreign markets by analyzing the current structure of Syrian potato exports and determining the most important factors influencing its demand in the main export markets of the Syrian potato. To achieve the objectives of the research, data were collected from secondary sources. Standard economic analysis methods represented in the estimation of some simple linear, multiple and nonlinear regression models, regression method and the correlation coefficients matrix were used to estimate the external demand functions of the Syrian potato. The results showed that the Arab countries were the most important importing markets for the Syrian potato during the period (2000-2015), and the most important markets were Jordan and the UAE, and the study of some variables affecting the Syrian potato crop in the Jordanian and UAE markets during the period (2000-2015), it was found that when the per capita income in Jordan led to the increase in the quantity required of the Syrian potato and the value of the elasticity of the demand for income was (-1.3), and the value of elasticity of demand price was (7.48), this means that the demand for Syrian potatoes is flexible. While price elasticity in the UAE market showed that the demand for Syrian potatoes is also flexible with the value of the elasticity of demand (-11.4). The price of Syrian potatoes for the prices of the competitive countries is one of the most competitive determinants of the potato product.

Keywords: Potato, Demand function, Price elasticity, Income elasticity.

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An Analytical Economic Study of Consumer Demand for Vegetable Oilin Damascus City

Fayez AL-Mikdad(1) Osama AL-Janadi(1) and Ahamad AL-Rifaee(1)

(1). Administration of Socio-Economics, General Commission of Scientific Agricultural Research (GCSAR), Damascus, Syria.

(*Corresponding author: Dr. Fayez Al-Mikdad. E-Mail:

Received: 23/10/2016                                 Accepted: 18/11/2016


The vegetable oils are a good source of energy, and are economically important. It is dramatically consumed in dietary patterns in Syria, in addition to the main role of vegetable oils in many food industries. The statistics revealed an increasing in domestic consumption of vegetable oils in Syria, thereby increasing amount of imports. This research aimed to estimate the demand function for vegetable oils, and to describe the relationships among changes in the amount consumed, prices, and income, to achieve that goal. The research has based on secondary data from the Ministry of Agriculture, and the Central Bureau of Statistics, in addition to the cross-sectional data obtained from a simple random sample consisting of 191 consumers in Damascus. The changes in the studied variables were followed periodically, every three months for one year (started from the fourth quarter of 2012 to the third quarter of 2013). The research based on descriptive statistical analysis as well as quantitative analysis to estimate the demand function for vegetable oil, and to derive the price, cross, and income elasticities. The study showed that the price and income elasticities of vegetable oils generally amounted to 0.2258, 0.1782 respectively, and there was a significant cross elasticity between sunflower and soybean oils as alternatives to each other.

Key words: Demand function, price, Cross and income elasticities, Consumption of vegetable oils, Alternative goods.

Full paper in Arabic: PDF