خلاصه ماشینی:
"However, results of variance decomposition of inflation and simulating three important sticky price models indicate that the pattern of pricing at micro level in Iran might follow a time dependent model.
In Section 6 we analyze the variance decomposition of the inflation and compare the facts about price setting behavior by the predictions of sticky price models in order to discover the pattern of pricing at retail data level in Iran.
3. The Relation between the Size and Inflation in Main Groups Among 12 main groups, the average size of price increases of six groups including “Food and Beverages”, “Clothing and Footwear”, “Housing, Water, Electricity, Gas and other Fuels”, “Furnishings, Household Equipment and Routine Household Maintenance”, “Recreation and Culture”, “Restaurants and Hotels” depend on the rate of inflation (The coefficients of inflation for these groups are statistically significant at 1% and 5%).
According to the magnitude of coefficient, the change in inflation affects average size of price changes more than fraction of price changes (in comparison to their mean) We also decompose inflation further into a weighted sum of price increases and decreases: (21) ∑ ( ∑ ) ( ∑ ∑ ) ( ∑ ) ∑ and are the set of items in the sample whose price changes are respectively positive and negative.
According to the results of variance decomposition of inflation, fluctuations in the average size of price changes played an important role in the dynamics of inflation over the sample period while the movements in the frequency of price changes have a minor role."