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

這種薪金調整的靈活性對于被解雇或減薪的人不管是怎樣無情，它卻意味著從前那種認為勞工薪金調整步調一致的理論已經陳腐過時了。

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.

經濟學家們擔心，低失業率可能會導致通貨膨脹，這種擔心是由于沒有考慮到勞動力結構的變化。勞動力已經從制造業轉移到專業性、技術性行業，就像本世紀初期（指20世紀）美國人從農業轉移到工廠一樣。

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.