Abstract:
Methods to measure income indexes have for quite some time now been an important subject in statistics and econometric research. Various measures were proposed and studied. These measures are based on incomplete moments or incomplete conditional moments and they take into consideration the shape of the income distribution but suffer sometimes from low efficiency and or lack or robustness. In this note, some measures of income are reviewed such as Lorenz curve, Gini’ index, entropy index and Schutz’s index.