问一道题：NO.PZ2018062003000103

问题如下：

In a hypothetic market, wages can adjust consistently with price change, the short-run aggregate supply curve will most likely becomes:

选项：

flatten

steepen

stay the same

解释：

B is correct.

Normally we assume wages are held constant to find the change of short-run aggregate supply curve. When price and wages change at the same time, the slope of SRAC will change. If the price rises, profit that company should gain has now been mitigated by wage changes. Therefore the output changes little. The curve will be steeper.

考点：短期供给曲线

解析：如果工资水平可以跟随物价及时调整，那么短期供给曲线形状就会像长期供给曲线靠近，变得更加陡峭。

因为工资及时调整，就可以修正生产成本，修正后的生产成本没有实质性的改变，厂商就不会改变其产量，这在图形上就表现为供给曲线变得陡峭。