Multinationals’ profit response to tax differentials: Effect size and shifting channels

This paper provides a quantitative review of the empirical literature on profit‐shifting behaviour of multinational firms. We synthesize the evidence from 27 studies and find a substantial response of profit measures to international tax rate differentials. Accounting for confounding factors by means of meta‐regressions, we predict a tax semi‐elasticity of subsidiary pre‐tax profits of about 0.8. Moreover, we disentangle the tax response by means of financial planning from the transfer pricing and licensing channel. Back‐of‐the‐envelope calculations suggest that transfer pricing and licensing are the dominant profit‐shifting channels.