He made a number of simplifications in the taxation system.

他在作了一些简化。

Introduced in 1975 and extended by Ronald Reagan and every president since, the EITC is a type of negative income tax for poor workers and is America's most efficient antipoverty tool.

所得收入抵免度于1975年定，为罗纳德·里根总统和他以后的总统们沿用。它是降贫穷工人收入的一种，是美国最有效的降贫困的方针。