Stubbornly low unemployment, weak productivity growth and acceleratingunit wage costs may simply be the results of firms' holding on to workers while demand is weak.
难以降低的失业率，低生产率增长和单位工资成本快速增加可能是公司在需求降低时维持员工的结果。
2
In the accelerating field, every unit adjusts its current by electric field strength, the total current remaining constant.