与目睹街头的无家可归者和新闻中的亿万富翁的普通公民不同，作为计算不平等性指标的基础的家庭调查对收入分配中的最顶层和最底层的样本覆盖不够大。
Unlike ordinary citizens, who see the homeless in the street and the billionaires in the news, the household surveys that underpin inequality measurements may be under-sampling those at the very top and the very bottom of the income distribution.