This document summarizes the 4th Corporate Fraud and Corruption Forum held in Amsterdam in November 2011. It discusses definitions of corruption, why fighting corruption is important, data on the costs of corruption, and trends in anti-corruption regulations and enforcement globally and within the European Union. Key developments discussed include increased enforcement of foreign bribery laws in the US and UK, more disclosure requirements for extractive industries, and various new anti-corruption laws and regulations in countries around the world.