身边的经济学·社会常识英语精读30篇（3）
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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.
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Automation disproportionately displaces tasks that are codifiable, repetitive, and predictable—precisely the hallmarks of many middle-tier jobs.
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Simultaneously, demand surges for both high-skill cognitive labor—like data science and strategic management—and low-skill embodied services—such as caregiving and food delivery.
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Geographic concentration intensifies this trend: tech hubs absorb high-skill talent while logistics corridors expand low-wage warehousing and transport roles.
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Educational credential inflation pushes workers upward or downward, widening the gap between those with bachelor’s degrees and those without postsecondary training.
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Wage stagnation in the middle segment isn’t just technological—it reflects weakened collective bargaining power and declining sectoral union density since the 1980s.
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Policy responses like sectoral training partnerships must address not only skills gaps but also wage-setting institutions and occupational licensing barriers.
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Polarization undermines intergenerational mobility: children from middle-income families face narrower pathways into stable, mid-level careers than previous cohorts did.
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It reshapes political economy, fueling support for both protectionist trade policies and expansive social safety nets among displaced workers.
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Importantly, polarization isn’t inevitable—it responds to deliberate choices in education funding, R&D priorities, and labor law enforcement.
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This structural shift forces rethinking of ‘good jobs’ definitions beyond salary to include scheduling stability, benefits portability, and career ladders.
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Recognizing polarization as systemic—not cyclical—helps avoid misdiagnosing symptoms like rising inequality as mere income distribution failures.