Migration and Wages of Young Men
构建了一个两期嵌套Logit迁移模型，利用美国年轻男性工人数据，研究他们完成全日制教育后头两年的区位选择，发现区域内部存在未观测到的相似性，且前期选择影响后期选择，工资方程中多数地区不存在选择性偏差。
A two-period nested logit migration model with selectivity is specified. The model is then applied to a sample of young U.S. male workers from nine different census divisions to study the choices they faced in the first two years after completing full-time schooling. find evidence of the existence of unobserved similarities in the divisions within each census region. We find that locational choices in one period affect locational choices of individuals in subsequent periods. We test for selectivity in division-specific wage equations and find little evidence of selectivity in the wage equations of most divisions and evidence of negative selection in the wage equations of two divisions. (EXCERPT)