This paper presents a survey of the optimal commodity taxation theory and, particularly, deals with the issue of uniformity versus selectivity of commodity tax rates. A review of the main empirical models is also presented. Moreover, the study attempts to calculate the optimal commodity taxes...

The aim of this paper is to analyze the impacts of the reduction of the Brazilian Tax on Industrialized Products (IPI) on the local sales of vehicles during the period between January and November of 2009. In order to evaluate these impacts, sales have been modeled as a function of price, income...