“When you calculate per capita income, or you use the OECD or Census technique for adjusting for household size, the net result of taking account of the number of people living in the household is that individuals living in the bottom 60 percent of American households all have roughly the same level of income. This near-equality occurs even though only 36 percent of prime working-age persons in the bottom quintile actually work compared to 85 percent in the second quintile and 92 percent in the middle-income quintile.” – Gramm & Boudreaux