Job Creation and Job Destruction in the Theory of Unemployment
在失业匹配模型中引入岗位特定冲击，内生决定工作创造与破坏过程，发现总体冲击使两者负相关而分散冲击正相关，且破坏过程波动更大，模拟结果拟合美国周期行为。
In this paper, the authors model a job-specific shock process in the matching model of unemployment with noncooperative wage behavior. They obtain endogenous job creation and job destruction processes and study their properties. The authors show that an aggregate shock induces negative correlation between job creation and job destruction, whereas a dispersion shock induces positive correlation. The job destruction process is shown to have more volatile dynamics than the job creation process. In simulations, the authors show that an aggregate shock process proxies reasonably well the cyclical behavior of job creation and job destruction in the United States. Copyright 1994 by The Review of Economic Studies Limited.