多选题:假定成年人和青年人在生产过程中是可以互相替代的,那么(  )。

题目内容:
假定成年人和青年人在生产过程中是可以互相替代的,那么(  )。 A.如果青少年工资率下降的规模效应小于替代效应,则成年人的就业减少
B.如果青少年工资率下降的规模效应小于替代效应,则两大劳动力群体之间属于总替代关系
C.如果青少年工资率下降的规模效应大于替代效应,则成年人的就业减少
D.如果青少年工资率下降的规模效应大于替代效应,则两大劳动力群体之间属于总替代关系
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