The proposed OECD Pillar One and Two reforms mark a significant shift in the way large multinational enterprises are taxed on their global incomes. However, while considering the reform at the proposed scale tax administrators must be able to compare the revenue gains with alternatives. This...

Introduction -- Capital explosion -- Tax cut revolution -- Flat tax club -- Mobile brains and mobile wealth -- Taxing businesses in the global economy -- The economics of tax competition -- The battle for freedom and competition -- The moral case for tax competition -- Options for U.S. policy

This paper evaluates the Multilateral Convention to implement Pillar I Amount A, released by the OECD in October 2023, and the alternative proposal of Art. 12B for tax treaties suggested by the UN, with a particular emphasis on the perspective of developing countries. We conduct a comparative...