Pierre Schammo provides a detailed analysis of EU prospectus law (and the 2010 amendments to the Prospectus Directive) and assesses the new rules governing the European Securities and Markets Authority, including the case law on the delegation of powers to regulatory agencies. In a departure from previous work on securities regulation, the focus is on EU decision-making in the securities field. He examines the EU's approach to prospectus disclosure enforcement and its implementation at Member State level and breaks new ground on regulatory competition in the securities field by providing a 'law-in-context' analysis of the negotiations of the Prospectus Directive.