Optimal fiscal policy requires that tax rates be smooth over time, responding only to permanent changes in government spending.
最优财政政策要求税率随时间平稳变化,仅对政府支出的永久性变化作出反应。
别像扶老太太过马路一样帮上帝过马路。
A complete industrial chain is more important than a single technological breakthrough.
The aim of art is to move the heart.