Evaluation the Dairy Demand of Iran with using Almost Ideal Demand System

Consumption of dairy products in terms of the health and economic terms is very important. The analysis of consumer behavior can help to take policies consistent and correct in this regard. In this study the demand for milk, yogurt and cheese, using time series data related to the year in 1363-1388 in the framework of the idea of an almost ideal demand system was estimated. The results showed that all of own-price elasticity is negative. The elasticity of milk and cheese are low but the yoghurt elasticity is high. All the income elasticities are positive, and the calculation of Allen elasticity showed that there are a substitution relationship between “milk and yogurt” and “yogurt and cheese” and complementary relationship between “milk and cheese”.