It is essential to understand the consumption pattern of food and how it changes over time to formulate sound economic policies as well as marketing and pricing strategies. In this study, we estimate the Quadratic Almost Ideal Demand System with six rounds of the Family Income Expenditure Survey exploiting the conditional linearity of the demand system. We find that the Filipino diet has become...

This paper presents estimates of the economic and demographic effects on the demand for steak, roast, and ground beef. Using an almost ideal demand system, the results indicate that demand is inelastic for steak and ground beef, elastic for roast, cross-price effects are significant, and all goods are Hicks-Allen substitutes. The impact of certain demographic effects, such as household size, re...

This paper presents a version of the proportionally calibrated almost ideal demand system (PCAIDS) model, useful for merger simulations, which can be econometrically estimated using price data for two firms in a market. The model is then applied to a database of the Argentine gasoline market, and its results are compared to the ones obtained with other alternative specifications. JEL Classifica...

this paper estimates demand functions for wireless and wireline phone, using almost ideal demand system (aids) and attempts to test the hypothesis of substitutability between wireless and wireline in iran. the results indicate that the number of mobile subscribers has been growing more than the number of wireline subscribers over studied period. this maybe because of lower price of mobile acces...

In this paper, we define the concepts of alomst bi-interior ideal and fuzzy almost in semigroups. Moreover, prove that relation between bi interior ideal.