In this paper, we study the role of price correction in estimating the impact of price subsidies and anti-poverty cash transfer schemes on poverty in Tunisia. Three types of price corrections are considered: (a) no corrections; (b) living standards deflated by spatial Laspeyres price indices; (c) living standards deflated by true price indices that are estimated from a quadratic almost ideal de...

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...

We approximate a fuzzy almost quadratic function by a quadratic function in a fuzzy sense. More precisely, we establish a fuzzy Hyers–Ulam–Rassias stability of the quadratic functional equation f(x + y) + f(x − y) = 2f(x) + 2f(y). Our result can be regarded as a generalization of the stability phenomenon in the framework of normed spaces. We also prove a generalized version of fuzzy stability o...

Present study investigates the effect of soaring residential electricity price on the welfare of rural individuals in Guilan Province by Almost Ideal Demand System (AIDS) in which the elasticity’s and welfare variations were calculated by Compensation Variations (CV) and Equivalent Variations (EV) for the time period of 1991-2012. It was shown that the absolute value of income and price elastic...

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...

in this article, optimal vat rates have been calculated for the three different levels of consumption tax revenue needed by the government. using the data of 10 income groups of the iranian rural and urban households in the period(1378-1386) and applying panel data approach, the almost ideal demand system(aids) were estimated to derive the price and income elasticities. then, the optimal vat ra...