自1920年至1940年，纺织工业在当地劳动力人口中的比重从15%萎缩约7%，接近腰斩。纺织业的衰退引发劳动力市场的剧变，也对当地人群产生了长期影响。彼时，美国社会保险体系尚处酝酿和起步阶段、尚未广泛覆盖，这为度量和分析提供了便利。

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