كليدواژه :
ايران , عادات مصرفي , Iran , habit effect , food consumption , مصرف مواد غذايي , مصرف كنندگان شهري , urban consumers
چكيده لاتين :
This study tries to investigate Iranian urban consumers behavior in addition to determine the role of habit effect in forming the consumption pattern over the period of 1980-2000.Studying consumersʹ behavior and allocation analysis of the limited budget among unlimited needs has been an important issue in microeconomics theory. Under utility theory, consumers tend to allocate their budget between goods and services optimally, obtaining the highest utility. In dynamic microeconomic analysis, it is believed that consumer behaviour is affected by not only substitution and income effects caused by price changes as is emphasized in static analysis, but also by habit effect.The survey items included households consumption quantity and total expenditure data on foods including bread, flour and its products, dairy products and eggs, fats, fruits and vegetables, groceries, sugar and tea, etc.The results obtained from decomposing the total effect of price changes indicated that habit effect has a significant role in food consumption changes. That is, despite of prices increases of most food items, consumers tend to keep their consumption pattern almost unchanged. The importance of component of total effect, revealed that income and substitution effects are weaker than the habit effect.
