问题描述：
英语翻译
16.A tax can be regressive,proportion,or progressive.Bracket creep is the phenomenon in which individuals move into higher tax brackets because of inflation.It only happens when taxes are progressive.
18.A neutral tax is a tax that causes no distortion in economic decision making.
20.Regulation is a cost of government activity that often is not measured or counted as a cost.
16.A tax can be regressive,proportion,or progressive.Bracket creep is the phenomenon in which individuals move into higher tax brackets because of inflation.It only happens when taxes are progressive.
18.A neutral tax is a tax that causes no distortion in economic decision making.
20.Regulation is a cost of government activity that often is not measured or counted as a cost.
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