As a result of both technological displacement and technology-enabled globalization, the share of employment in occupations in the middle of the skill distribution has declined rapidly in both the United States and Europe. Demand for workers who perform routine tasks has been falling at an accelerating pace in recent decades, destroying well -paid middle-skill jobs in both manufacturing and clerical occupations.
作为科技替代以及科技引发之全球化的结果，美欧两地处于技能分布中间区间的职位在整体工作职位中所占的份额显著下滑。对常规工作职工的需求近年来呈加速下降之势，导致那些制造业和文书工作的高收入中等技能工作不复存在。