Tax Competition in Presence of Profit Shifting. 1 Steeve Mongrain Simon Fraser University David Oh Canada Mortgage and Housing Corporation Tanguy van Ypersele Aix-Marseille Univ., CNRS, EHESS, Central Marseille, AMSE, Marseille March 15, 2022 1 Steeve Mongrain is grateful to the Social Sciences and Humanities Research Council of Canada for financial support. Tanguy van Ypersele is grateful to the French National Research Agency for financial support via Grants ANR-17-EURE-0020. We acknowledge helpful comments from participants in the IEB workshop on taxation, the workshop on urban economics at University of Alberta, the CPEG meeting at Queen’s University, the CLEA meeting at University of Toronto, the ZEW workshop on taxation at University of Mannheim, as well as from attendees at research seminars at Yale College–NSU and Universit´ e de Caen. The usual disclaimer applies. Corresponding author: Steeve Mongrain; [email protected]; 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.