这是因为，拉美收入分配数据主要来自家庭调查，这样的调查很少能提供关于皮克提所谓的食利者（他们的收入形式是实际获得的利润、红利或利息）的真实信息。
That is because the bulk of income-distribution data in Latin America comes from household surveys, which seldom manage to elicit truthful information about how much Piketty’s rentiers, who receive their income as profits, dividends, or interest, actually earn.