Labor Market Polarization: Why Middle-Skill Jobs Are Vanishing While High- and Low-Wage Roles Expand

劳动力市场两极化：中等技能岗位为何萎缩，而高薪与低薪岗位同步扩张

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Labor market polarization describes the hollowing out of mid-wage, mid-skill occupations such as clerical work, machine operation, and routine administrative roles.
Automation disproportionately displaces tasks that are codifiable, repetitive, and predictable—precisely the hallmarks of many middle-tier jobs.

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