1962年，弗里德曼提出实施一种“负所得税 ” ， 收入低于一定阈值的人从政府获得补偿性收入而无需为缴纳所得税。
In 1962, Friedman proposed a “negative income tax,” whereby people earning below a certain threshold would receive supplemental income from the government, rather than paying taxes to it.