The least skilled workers aren’t able to push for wage hikes at all because of abundant supplies of immigrants and former welfare recipients.

这种薪金调整的灵活性对于被解雇或减薪的人不管是怎样无情，它却意味着从前那种认为劳工薪金调整步调一致的理论已经陈腐过时了。

However brutal that may be for workers who are displaced or paid less well, that flexibility means old theories about the labor force moving in lockstep are antiquated.

经济学家们担心，低失业率可能会导致通货膨胀，这种担心是由于没有考虑到劳动力结构的变化。劳动力已经从制造业转移到专业性、技术性行业，就像本世纪初期（指20世纪）美国人从农业转移到工厂一样。

Economists’ concerns that low unemployment may trigger inflation don’t take into account the changing composition of the work force, which has shifted from manufacturing jobs to professional and technical position, just as Americans shifted from agriculture to factories earlier in the century.