What is the Corruption Perceptions Index (CPI)?
The Transparency International Corruption Perceptions Index ranks countries in terms of the degree to which corruption is perceived to exist among public officials and politicians. It is a composite index, a poll of polls, drawing on corruption-related data from expert and business surveys carried out by a variety of independent and reputable institutions. The CPI reflects views from around the world, including those of experts who are living in the countries evaluated. Transparency International commissions the CPI from Johann Graf Lambsdorff, Chair Economic Theory, University of Passau and Senior Research Advisor to TI.
