身边的经济学·社会常识英语精读30篇（4）
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Batch-Adapted Social Insurance Portability—How Serialized Eligibility Windows Enable Cross-Jurisdictional Continuity
批次适配型社会保险可携性：序列化资格窗口如何支撑跨辖区连续性
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Social insurance portability now operates through batch-adapted eligibility windows rather than continuous accrual tracking.
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Each jurisdiction maps its contribution records onto shared batch timelines—quarterly, biannual, or triennial—standardized across treaty partners.
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Workers transferring between countries retain benefit entitlements only if their contributions fall within aligned batch periods.
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This avoids pro-rata fragmentation but requires precise intergovernmental synchronization of payroll reporting cycles.
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Pension administrators use batch identifiers to resolve overlapping claims without manual reconciliation.
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Health coverage continuity depends on whether enrollment gaps fall within permissible batch tolerance thresholds.
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The model trades theoretical precision for administrative feasibility in heterogeneous payroll infrastructures.
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Migrant workers bear disproportionate adjustment costs when home-country batches lag international standards.
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Batch adaptation enables multilateral agreements but embeds path dependency in legacy reporting formats.
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It transforms social rights from universal entitlements into time-stamped, interoperable modules.
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Portability is no longer about equivalence—it is about temporal register compatibility.
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This architecture reveals how welfare states negotiate solidarity through scheduling, not just substance.