A Sequential Study of Migration and Job Search
设计了一个多臂赌博机序贯模型来分析迁移与求职过程，发现工资波动大的地区吸引移民，非金钱回报高的地区同时增加迁入和迁出，并利用鞅估计量分析返回迁移现象。
"This paper designs a multiarmed bandit (MAB) sequential model for the analysis of the migration-job search process. The implications either are compatible with well-known migration behavior or, when novel, are also plausible. For example, regions with large wage variability attract migrants, and regions with large nonpecuniary returns increase both in migration and out migration. A major advantage of this approach is the relative ease with which martingale estimators can be derived from the martingale structure of the model. These martingale methods are exemplified for the return migration phenomenon."