After years of analytical work by Transparency International (TI) and others, there remains no doubt about the harmful effect of corruption on people's welfare. With the Global Corruption Barometer, TI goes one step further by evaluating how and where ordinary people feelcorruption's impact. The Transparency International Global Corruption Barometer (the Barometer) is a public opinion survey that has been administered around the world each year since 2003. The Barometer explores how corruption affects the daily lives of ordinary citizens, asking about the general public's attitudes toward corruption, the extent to which they believe corruption pervades public institutions, their experience with petty bribery and their sense of how the fight against corruption will fare in the future.