Instead, he suggests reforming the third by tightening allowances for accelerated depreciation (as several other developed countries have done) in order to offset some of the revenue losses. But reducing the overall corporate rate would increase after-tax returns on past investments, while limiting accelerated depreciation would lower after-tax returns on new investments.
他建议改革第三项，办法是通过限制加速折旧（其他一些发达国家已经开始实施这一做法）以抵消部分收入损失。但降低总体公司税率会增加过去投资的税后回报，而限制加速折旧会降低新投资的税后回报。即使取消加速折旧也不可能让税基扩大到足够的程度补偿税率削减至28%的损失。