In this paper, we consider optimal tax enforcement policy in the presence of profit shifting towards tax havens. We show that, under separate accounting, tax enforcement levels may be too high due to negative fiscal externalities. In contrast, under formula apportionment, tax enforcement is...

Rent-sharing between firm owners and workers is a robust empirical finding. If workers bargain with firms, information on the actual surplus is essential. When the firm can use profit shifting to create private information on the surplus, it can thereby reduce its wage bill. We study how rent...