Structural Change and Internal Labor Migration: Evidence from the Great Depression
研究美国大萧条期间劳动力从城市向农场回流的现象，发现危机扭曲了正常结构变迁，使被机械替代的工人转向低生产率或自给农业，对理解技术变革的劳动力市场影响有参考价值。
Abstract We analyze sectoral labor reallocation and the reversal of urbanization in the United States during the Great Depression. The widespread movement to farms, which serves as a form of migratory insurance during the crisis, is largely toward farms with low levels of mechanization. In contrast, the mechanized agricultural sector sheds workers, many of whom reallocate into low-productivity or subsistence farming. The crisis perverts the normal process of structural change in which workers displaced by farm equipment are released into more productive occupations, suggesting that macroeconomic fluctuations are an important factor determining the labor market consequences of technological change.