Total income is defined as the sum, at the household level, of the following components: 1) wage, salary and self-employment income of household members, 2) capital and property income, private pensions, private occupational pensions, and all kinds of private transfers, and 3) social security transfers from public sources. Total income is expressed in terms of “equivalent” household member, by dividing it by the square root of household size. The definition of the second and third income component can slightly differ for European countries and non-European countries, given differences in information available in the microdata public-use files particularly in the reporting of gross and net earnings.