Introduction and Framework -- Background to Transatlantic Relations -- The US-EU Bilateral Intergovernmental Relationship -- US-EU Cooperation in the G20 at the Outset of the Global Financial Crisis -- The Role of Transgovernmental and Transnational Dialogue in Financial Markets Cooperation -- Case Studies in Multilevel US-EU Policy Coordination: Credit Ratings Agencies, Accounting Standards and Credit Default Swaps Reform -- The US-EU Relationship in International Forums -- US-EU Cooperation on a role for the International Monetary Fund