What happens to natives when immigrants get jobs?

This paper studies the impact of immigrants at the workplace on native worker employment. We use a rich matched worker-\u85rm dataset to precisely measure the workplace level hiring of immigrants and this allows us to study worker reallocations at a detailed level. Estimation of a single risk duration model for native worker job spells shows that job separation rates increase if more immigrants are hired, and these e¤ects are particularly pronounced for immigrants from Eastern Europe and least developed countries. Adjustment costs for natives are likely if immigrants lead to unemployment and in a competing risks duration model we \u85nd that immigrants from least developed countries increase the unemployment risk for natives while immigrants from Eastern Europe increase the native job change probability. Distin-guishing between di¤erent types of natives we also \u85nd that the results only apply for low skilled workers, whereas workers with further education are una¤ected by immigrants at the workplace