Is there monopsonistic discrimination against immigrants? First evidence from linked employer-employee data

This paper investigates immigrants' and natives' labour supply to the firm within a semi-structural approach based on a dynamic monopsony framework. Applying duration models to a large administrative employer-employee data set for Germany, we find that once accounting for unobserved worker heterogeneity immi-grants supply labour less elastically to firms than natives. Under monopsonistic wage setting the estimated elasticity differential predicts a 4.7 log points wage penalty for immigrants thereby accounting for almost the entire unexplained native-immigrant wage differential of 2.9-5.9 log points. Our results imply that employers profit from discriminating against immigrants.