Job Search with Nonparticipation
在非平稳求职搜索模型中引入永久退出劳动力市场的选项，利用德国面板数据估计模型，发现工资分布存在显著负持续时间依赖导致保留工资下降，而工作机会到达率恒定，为技能退化导致的非平稳环境提供了微观证据。
In a non-stationary job search model we allow unemployed workers to have a permanent option to leave the labour force. Transitions into nonparticipation occur when reservation wages drop below the utility of being nonparticipant. Taking account of these transitions allows the identification of duration dependence in the job offer arrival rate and the wage offer distribution. We estimate the structural model with individual data from the German Socio-Economic Panel and use simulated maximum likelihood. The results show that the presence of significant negative duration dependence in the wage offer distribution causes reservation wages to decrease. The rate at which job offers arrive is constant over the unemployment duration. These findings provide micro evidence that the job search environment of unemployed workers is non-stationary because of loss of skills. © Royal Economic Society 2006.