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.劳动力市场两极化指文员、机器操作和常规行政等中等薪资、中等技能岗位的萎缩。
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Automation disproportionately displaces tasks that are codifiable, repetitive, and predictable—precisely the hallmarks of many middle-tier jobs.自动化 disproportionately 淘汰那些可编码、重复性强且可预测的任务——而这恰恰是许多中层岗位的典型特征。
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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.与此同时，对高技能认知型劳动（如数据科学、战略管理）和低技能具身服务（如照护、外卖配送）的需求同步激增。
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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.地理集聚加剧了这一趋势：科技中心吸纳高技能人才，而物流走廊则扩大了仓储与运输等低薪岗位。
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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.学历通胀迫使劳动者向上或向下流动，拉大了拥有学士学位者与未接受高等教育者之间的差距。
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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.中等收入群体工资停滞不仅源于技术变革，也反映出自1980年代以来集体谈判能力削弱和行业工会密度下降。
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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.政策应对（如行业培训合作）不仅要填补技能缺口，还需改革工资决定机制和职业许可壁垒。
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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.两极化削弱代际流动性：中等收入家庭子女进入稳定中层职业的路径，比前几代人更窄。
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It reshapes political economy, fueling support for both protectionist trade policies and expansive social safety nets among displaced workers.它重塑政治经济格局，使受冲击劳动者既支持保护主义贸易政策，也呼吁扩大社会保障网。
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Importantly, polarization isn’t inevitable—it responds to deliberate choices in education funding, R&D priorities, and labor law enforcement.重要的是，两极化并非必然结果——它取决于教育投入、研发重点和劳动执法等政策选择。
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This structural shift forces rethinking of ‘good jobs’ definitions beyond salary to include scheduling stability, benefits portability, and career ladders.这一结构性转变迫使人们重新定义‘好工作’：除薪资外，还需纳入排班稳定性、福利可携带性及职业晋升通道。
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Recognizing polarization as systemic—not cyclical—helps avoid misdiagnosing symptoms like rising inequality as mere income distribution failures.将两极化视为系统性而非周期性现象，有助于避免误将日益加剧的不平等简单归因为收入分配失灵。