Sectoral Shifts, Labor Market Sorting, and Aggregate Fluctuations
构建了一个部门重新配置模型，其中部门冲击通过降低劳动力市场先前分类的价值来影响生产，并发现部门分散度与失业率正相关，部门冲击增加会提高周期峰谷的失业率。
A model of sectoral reallocation is constructed where intersectoral friction is not caused by search or mobility costs. Instead, a sectoral disturbance has a negative effect on production possibilities because it reduces the value of previous sorting in the labor market. In equilibrium, a measure of sectoral dispersion is positively correlated with the unemployment rate. An increase in the incidence of sectoral disturbances increases unemployment at cyclical peaks and at cyclical troughs. Copyright 1990 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.