NO.PZ2023010401000098
问题如下：
Which of the following is not a problem with NARU and NAIRU?选项：
A.They only work in monetarist models. B.They may change over time given changes in technology and economic structure. C.They do not account for bottlenecks in segments of the labor market (e.g., college graduates).解释：
NARU and NAIRU are the unemployment rates at which the inflation rate will not use because of a shortage of labor. This concept does not tie to a particular school of macroeconomic models.没明白，为什么选A呢
