NO.PZ2023010401000087
问题如下：
The sustainable growth rate is best estimated as:选项：
A.the weighted average of capital and labor growth rates. B.growth in the labor force plus growth of labor productivity. C.growth in total factor productivity plus growth in the capital-to-labor ratio.解释：
Output growth is equal to the growth rate of the labor force plus the growth rate of labor productivity, i.e. output per worker. Unlike total factor productivity, output per worker is observable, so this is the most practical way to approach estimation of sustainable growth.
中文解析：
产出增长等于劳动力的增长率加上劳动生产率的增长率，即每个工人的产出。与全要素生产率不同，人均产出是可以观察到的，因此这是估计可持续增长最实用的方法。
难道就是y增长率的两种写法，本质都是y增长率吗？
只不过potential growth rate = total factor of productivity + WL * growth in labor + WC * growth in capital，
sustainable growth rate = growth in labor force + growth in labor productivity
