Immigration and Worker-Firm Matching
利用1995-2005年法国雇主-雇员数据，研究发现由历史网络驱动的移民比例上升增强了工人与企业间的正向分类匹配，并提高了高生产率工人的工资。
Abstract Positive assortative matching increases both the wages of more productive workers and wage dispersion. We study the effect of immigration on positive assortative matching using French employer-employee data from 1995 to 2005. We find that increases in the share of immigrants, driven by historical networks across local labor markets, generated stronger positive assortative matching between workers and firms. We present evidence suggesting that this effect was associated to higher wages for more productive workers and that the findings are consistent with increased workers' screening by firms.