Countries are ranked in ascending order of the differences in net income of dual-earner and single-earner couple households as percentages of the net income of single-eamer couples - see values listed at bottom of figure. Net transfers” refers to what households pay the government in taxes and contributions minus the benefits received. The white triangle refers to a household where the primary earner lias work income of 133% of the average wage. The dark diamond refers to a household where both partners earn 67% of the average wage, so that household income adds up to 134%.