Employment Dynamics and the Structure of Labor Adjustment Costs
从微观层面记录就业调整模式，发现调整具有块状特征，不行动普遍且持续时间长，调整概率随不行动时长增加，且受劳动力技能结构、合同类型和低任期工人比例影响。
In this article we document the patterns of employment adjustment at the micro level. We find clear evidence of lumpy adjustment consistent with the presence of nonconvexities in the adjustment technology—inaction is pervasive, action spells are short-lived, and extreme adjustment episodes are responsible for a nontrivial share of employment adjustment. We also find that the probability of employment adjustment increases with the duration of inaction. The skill structure of the workforce, the type of employment contract, and the proportion of low-tenure workers, which we interpret as proxies for the magnitude of adjustment costs, all influence the probability of adjustment.