The most significant problems with the existing system for taxing the profit of multinational companies stem from two related sources. First, the underlying “1920s compromise” for allocating the rights to tax profit between countries is both inappropriate and increasingly hard to implement...

The Two-Pillar Solution agreed by 137 countries on 8 October 2021 has been hailed as “historic” and a “a once-in-a-generation accomplishment for economic diplomacy.” To a significant extent, this is due to the expected impact of Pillar 2 (essentially a global minimum tax) on tax...

Two of the most controversial questions relating to Pillar 2 are the extent to which it will allow countries to engage in tax competition, and which countries will collect the tax revenues it generates. The Model Rules published by the OECD/G20 Inclusive Framework on 20 December 2021 provide...

Larger firms are more likely to use tax haven operations to exploit international tax differences. We study tax competition between a large country and a tax haven. In the large country, heterogeneous firms operate under monopolistic competition and can choose to shift profits abroad. We show...