NO.PZ2018062017000019
问题如下:
Which of the following may lead to a decrease of unemployment rate?
选项:
A. the nation's population increase.
B. voluntarily discouraged workers people increase.
C. number of unemployed decreases.
解释:
C is correct.
The unemployment rate = (number of unemployed/labor force)×100. Nation's population will not affect the unemployment rate.
When discouraged workers decrease, the number of unemployed people increases .
考点:Unemployment
解析:The unemployment rate = (number of unemployed/labor force)×100
总人口的增加,会导致上式分子分母同时增加,故不好判断最终结果,所以A选项不入选。
自愿失业的人口不计入劳动力统计口径,所以对上式没有影响,所以B选项不入选。
失业人口下降,上式中分子下降,失业率降低,故C选项入选。
请问B为什么不对。我的理解是如果discouraged workers increase, 导致 labor force decrease, unemployed workers decrease, 所以unemployed rate下降。