This bookpresents a rigorous treatment of the mathematical instruments available for dealing with income distributions, in particular Lorenz curves and related methods. The methods examinedallow usto analyze, compare and modify such distributions from an economic and social perspective. Though balanced income distributions are key to peacefulcoexistencewithin and between nations, it is often difficultto identify the right kind of balance needed, because there is an interesting interaction with innovation and economic growth. Theissue of justice, as discussed in Thomas Piketty sbestseller...