The Abolition of Immigration Restrictions and the Performance of Firms and Workers: Evidence from Switzerland
研究了瑞士允许跨境工人自由进入劳动力市场的改革，发现改革增加了外国就业，提高了高技能本土工人的工资，原因是企业规模、生产力和创新提升，创造了管理岗位机会。
We study a reform that granted European cross-border workers free access to the Swiss labor market and had a stronger effect on regions close to the border. The greater availability of cross-border workers increased foreign employment substantially. Although many cross-border workers were highly educated, wages of highly educated natives increased. The reason is a simultaneous increase in labor demand: the reform increased the size, productivity, and innovation performance of skill-intensive incumbent firms and attracted new firms, creating opportunities for natives to pursue managerial jobs. These effects are mainly driven by firms that reported skill shortages before the reform.