成大97学年经济学有一题这样问：
In an expansion, the cyclical rate of unemployment:
A) is zero.
B) is negative.
C) equals the natural rate of unemployment.
D) equals the sum of the frictional and structural unemployment rates.
请问大家是不是B啊？我翻过课本了找不到> <
循环性失业可为负吗？
政大97财政系的经济学有一题：
If the natural rate of unemployment equals 6% and the actual rate of
unemployment equals 4%, then cyclical unemployment equals:
A) -2%
B) 2%
C) 6%
D) 10%
是A吗？？请大家帮帮忙> <