Values around 1.5 indicate very egalitarian societies, while values around 3 indicate very high inequality. The coefficients for developing countries tend to be between 2 and 3 (Alvaredo and Piketty, 2014). A.B. Atkinson and T. Piketty (eds.). A note on the relationship between top income shares and the Gini coefficient, Economic Letters. T. Piketty and E. Saez. "