Data for: Migration externalities in Chinese cities

Abstract of associated article: We analyse the impact of internal migration in China on natives׳ labour market outcomes. We find evidence of a large positive correlation of the city share of migrants with natives׳ wages. Using different sets of control variables and instruments suggests that the effect is causal. The large total migrant impact (+10% when one moves from the first to the third quartile of the migrant variable distribution) arises from gains due to complementarity with natives in the production function (+6.4%), and from gains due to agglomeration economies (+3.3%). Finally, we find some evidence of a stronger effect for skilled natives than for unskilled, as expected from theory. Overall, our findings support large nominal wage gains that can be expected from further migration and urbanisation in China.关联论文摘要：本文分析了中国国内人口迁移对本地居民劳动力市场表现的影响。研究发现，城市移民占比与本地居民工资之间存在显著的正向相关关系。通过设置多组控制变量与工具变量进行检验，结果表明该影响具有因果效应。移民带来的整体影响显著（当移民占比从分布的第一四分位数提升至第三四分位数时，本地居民工资可增长10%），该影响主要来源于两方面：一是生产函数中与本地居民的互补效应带来的工资增长（+6.4%），二是集聚经济效应带来的工资增长（+3.3%）。最后，本文发现技能型本地居民所获工资增长效应强于非技能型本地居民，这与理论预期相符。综上，本文研究结果表明，中国未来进一步推进人口迁移与城镇化进程，可使本地居民获得可观的名义工资增长。