This book examines developments in EU-US political and economic relations in the 1990s. It contributes to the existing literature by combining knowledge about actors and institutions to outline the transatlantic decision-making process. It focuses not only on how states co-operate but how they effectively govern the transatlantic marketplace and the international political order through transatlantic institutions. Studying transatlantic governance enables us to understand not only how domestic, or EU level, decision-making structures affect transatlantic decisions but also how transatlantic decisions affect domestic institutions. In short, employing decision-making structures as an analytical approach helps us identify who governs and how, and who or what determines policy outcomes. This book is the result of a comprehensive research project and it includes detailed case studies on EU-US efforts to fight people-trafficking, EU-US regulatory co-operation in the form of Mutual Recognition Agreements and the transatlantic trade dispute over bananas. The book is aimed at anyone with an interest in what transatlantic relations entail outside the confines of NATO security.