Optimal fiscal policy requires that taxes be smooth over time, as abrupt changes can distort economic decisions.
最优财政政策要求税收随时间平滑,因为突然的变化会扭曲经济决策。
The old believe everything, the middle aged suspect everything, the young know everything.
"Innovation is the lifeblood of the energy sector; without it, we stagnate."
The best way to predict the future is to invent it.