تحليل رفتار پوياي مصرفي مناطق شهري كل كشور و استان اصفهان: كاربرد دستگاه تقاضاي تقريباً ايده آل طي دوره 84-1358

Dynamic of Consumer Behaviour in Urban Areas of the Country and Isfahan, an Application of Almost Ideal Demand System

Survey analysis of consumersʹ behavior of allocating limited income to the purchase of different goods and services is one of the important topics in economics, which is used in economic decision making. In doing economic studies, different methods can be used. In recent years in order to study the sensitivity of commodities prices and the variation of real income, a great attention was given to almost ideal demand system model. In this research, our main objective was to estimate demand function and analysis of consumer behavior in various urban regains of Isfahan province and average of the country in the period (1979-2005), we applied the same technique in compound with habit formation. The results of statistical analysis show that after the Iran-Iraq war period the cost share of the non-food expenditure in the constant price of year 2005 were be I.7 and 3 times the cost share of food expenditure in average of the country and Isfahan province respectively. This indicates that in this period the economic welfare was increasing especially in Isfahan province Accordingly to the results ofWald Test, homogeneity and symmetry hypotheses are rejected and habit formation is affected on consumers demand. The signs of price elasticities were as expected for a11 commodity categories. The estimated income elasticities indicate that in the Isfahan province the "food" and "wear &shoes" and III the average of the country the "food" and "housing & fuel" categories are considered as necessity and other categories are considered luxury