This book answers the question of whether the European Union were acting rationally when they brought the issue of corruption to the front of the agenda in the Bulgaria and Romania EU accession talks. In answering this question we have separated the book into three sections. The first is a critical analysis of the costs and benefits of corruption in an economy. In the second section we examine the economic tools at the EU''s disposal in combating corruption. The third and final section studies the presence and trend of corruption in the EU economy. The book thus offers several policy recommendations on the subject of corruption in an EU context.