What is the Corruption Perceptions Index?
The TI Corruption Perceptions Index (CPI) this year ranks 133 countries in terms of the degree to which corruption is perceived to exist among public officials and politicians. It is a composite index, drawing on 17 different polls and surveys from 13 independent institutions carried out among business people and country analysts, including surveys of residents, both local and expatriate. In 2002, the CPI included only 102 countries. The large increase in coverage relates to the fact that more valid and reputable sources have been found that can be incorporated.
