Human Capital Investment Specialization and the Wage Effects of Voluntary Labor Mobility
分析自愿劳动力流动，指出工人会在特定培训或工作搜寻上专业化，导致离职外生性假设低估流动对工资的影响，通过联立估计得到更大的工资效应。
Ahstract-Analyses of voluntary labor mobility suggest that job search facilitates job change while specific training inhibits mobility. Further, given that specific skills cannot be transferred between jobs, and since both search and training are costly, it is reasonable for workers to specialize in search or specific training on a given job. Training or search specialization, however, implies that estimation methods which treat the incidence of a quit as exogenous underestimate mobility effects on wages. The larger wage effects reported here result from simultaneous estimation but also reflect more accurate measurement of wage growth between jobs.