NO.PZ2023041102000035
问题如下:
Using the specified growth accounting equation, which is the most appropriate conclusion Birol can make from his data on trends in the economy?
Exhibit 1Long-Term Trends of Daltonian Economy
选项:
A.GDP growth is primarily driven by labor. B.Daltonia’s economy is performing at a steady state rate of growth. C.Output per worker is falling.解释:
The components of growth can be determined using Solow’s growth accounting equation: ΔY/Y = ΔA/A + αΔK/K + (1 − α)ΔL/L
TFP = Labor productivity growth – Growth in capital deepening = 1.7 – 2.3 = –0.6, which is given in Exhibit 1. Also given, 1 – α = 0.65 and α = 0.35
上课说,不能用人口增长率来代替(看到老师之前的解答,说这一题有瑕疵)
那么,可不可以算出growth rate of labor呢?
已知%Δy=1.7%,%ΔT=-0.6%,根据y=T(K/L)^α,得到%Δy=%ΔT+α%Δ(K/L),α=0.35,算出%Δ(K/L)=6.57%
K/L=K➗L,得到%Δ(K/L)=%ΔK-%ΔL,%ΔK=6.1%,算出%ΔL=-0.47%。
这种思路对吗?