University of Tehran Press Iranian Journal of Agricultural Economics and Development Research 2008-4838 45 4 2014 12 22 Evaluation the dairy demand of Iran using almost ideal demand system (AIDS) Evaluation the dairy demand of Iran using almost ideal demand system (AIDS) 693 701 53843 10.22059/ijaedr.2014.53843 FA Esmayil Pishbahar Associate Professor, Department of Agricultural Economics, Faculty of Agriculture, Tabriz University, Iran Majid Nataj Firoozjah MSc. Student, Department of Agricultural Economics, Faculty of Agriculture, Tabriz University, Iran Journal Article 2012 07 18 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 was estimated by using time series data related to 1984-2009 in the framework of the idea of an almost ideal demand system. 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”. 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 was estimated by using time series data related to 1984-2009 in the framework of the idea of an almost ideal demand system. 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”. https://ijaedr.ut.ac.ir/article_53843_b9ef539bc85ccdfa24b3ef7193e86ea6.pdf